def load_tle_data(data_dir):
data = []
for tle_fn in glob(os.path.join(data_dir, '*.txt')):
group_name, _ = os.path.splitext(os.path.basename(tle_fn))
with open(tle_fn, 'r') as fh:
while True:
try:
platform = next(fh)
line1 = next(fh)
line2 = next(fh)
x = tlefile.read(platform, line1=line1, line2=line2)
data.append({
'group' : group_name,
'arg_perigee' : x.arg_perigee,
'bstar' : x.bstar,
'excentricity' : x.excentricity,
'inclination' : x.inclination,
'mean_anomaly' : x.mean_anomaly,
'mean_motion' : x.mean_motion,
'mean_motion_derivative' : x.mean_motion_derivative,
#'mean_motion_sec_derivative' : x.mean_motion_sec_derivative,
'orbit' : x.orbit,
'right_ascension' : x.right_ascension
})
except StopIteration:
break
df = pd.DataFrame(data)
return df
def loadSatellites(val):
satellites = load.tle_file(constellationToLink[val]["link"],
filename="%s.txt" % val)
redisServer = constellationRedis[val]
for satellite in satellites:
data = {}
tle = tlefile.read(satellite.name, "%s.txt" % val)
data['platform'] = tle.platform
data['line1'] = tle.line1
data['line2'] = tle.line2
json_data = json.dumps(data)
redisServer.set(tle.platform, json_data)
os.remove("%s.txt" % val)
message = "Loaded " + str(
len(satellites)) + " satellites to " + str(val) + " database"
print(message)
connection = pika.BlockingConnection(
pika.ConnectionParameters(host=rabbitMQHost))
logChannel = connection.channel()
logChannel.exchange_declare(exchange='logs', exchange_type='topic')
logChannel.basic_publish(exchange='logs',
routing_key='databaseUpdater.info',
body=message)
def geo_sat_position(self, satellite: str):
"""
Args:
satellite (str): Name of the satellite
Returns:
np.array: Array containing the ra and dec of the satellite
"""
# TODO improve the function
try:
# Get the filename
url = self.cfg_data.get_tle_url() # Get the URL from the settings file
file_dir = os.path.abspath("TLE/" + url.split("/")[-1]) # Directory for the saved file
tle_data = tlefile.read(satellite, file_dir)
sat = ephem.readtle(tle_data.platform, tle_data.line1, tle_data.line2)
self.observer.date = self.current_time()
sat.compute(self.observer)
c_time = self.current_time() # Get the current time
ha_sat = np.round(self.hour_angle(math.degrees(sat.ra), math.degrees(sat.dec), c_time), 4) # Get the hour
# angle of the satellite
return np.array([np.round(np.degrees((sat.alt, sat.az,)), 4),
np.round((ha_sat, np.degrees(sat.dec),), 4)]).tolist()
except KeyError:
self.logger.exception("No satellite found. See traceback.")
def __init__(self, satellite, tle_file=None, line1=None, line2=None):
satellite = satellite.upper()
self.satellite_name = satellite
self.tle = tlefile.read(satellite, tle_file=tle_file,
line1=line1, line2=line2)
self.orbit_elements = OrbitElements(self.tle)
self._sgdp4 = _SGDP4(self.orbit_elements)
def __init__(self, satellite, tle_file=None, line1=None, line2=None, use_NEAR_for_DEEP_space=False):
satellite = satellite.upper()
self.satellite_name = satellite
self.tle = tlefile.read(satellite, tle_file=tle_file,
line1=line1, line2=line2)
self.orbit_elements = OrbitElements(self.tle)
self._sgdp4 = _SGDP4(self.orbit_elements, use_NEAR_for_DEEP_space=use_NEAR_for_DEEP_space)
def deploy(self,
category,
deployer,
dplyr_mass,
dplyd_mass,
name,
vel,
date=None):
self.calcPosAndVel(deployer, vel)
#tle = tlefile.read(deployer.name, "TLE/cubesat.txt")
deployer_name, line1, line2 = deployer.createTLE()
tle = tlefile.read(deployer_name, line1=line1, line2=line2)
newSat = Sat(name=name, tle=tle, cat=category)
#newSat = Sat(name=name, cat=category)
self.updateSat(newSat, date)
B = (2 *
(0.034 * 0.084 + 0.034 * 0.028 + 0.084 * 0.028)) / 6 / dplyd_mass
newSat.setBallisticCoeff(B)
newSat.createTLE()
dplyr_mass = dplyr_mass - dplyd_mass
dplyr_vel = [
-vel[0] * dplyd_mass / dplyr_mass,
-vel[1] * dplyd_mass / dplyr_mass,
-vel[2] * dplyd_mass / dplyr_mass
]
self.calcPosAndVel(deployer, dplyr_vel)
self.updateSat(deployer, date)
B = (0.1 * 0.1 * 2 + 4 * 0.3 * 0.1) / 6 / dplyr_mass
deployer.setBallisticCoeff(B)
deployer.createTLE()
return newSat
def __init__(self, satellite, tle_file=None, line1=None, line2=None):
satellite = satellite.upper()
self.satellite_name = satellite
self.tle = tlefile.read(satellite, tle_file=tle_file,
line1=line1, line2=line2)
self.orbit_elements = OrbitElements(self.tle)
self._sgdp4 = _SGDP4(self.orbit_elements)
def decode_TLE():
#here we can find more explanations about the module pyorbital here : https://pyorbital.readthedocs.io/en/latest/
sat = tlefile.read('INMARSAT 3-F1' ,'C:\Users\Student-CIC-05\Desktop\Meuven\code\TLE.txt')
# we can use the command "Orbital", thanks to whom (with the name of the sat) we get directly on the internet the sat's TLE
now = datetime.utcnow()
coor_sat= sat.get_lonlatalt(now)
return (coor_sat) # gives a tuples with long, lat , alt
def __init__(self, satellite, tle_file=None, line1=None, line2=None):
satellite = satellite.upper()
self.satellite_name = satellite
self.tle = tlefile.read(satellite, tle_file=tle_file,
line1=line1, line2=line2)
self.orbit_elements = OrbitElements(self.tle)
self._sgdp4 = _SGDP4(self.orbit_elements)
pos_epoch, vel_epoch = self.get_position(self.tle.epoch,
normalize=False)
if np.abs(pos_epoch[2]) > 1 or not vel_epoch[2] > 0:
# Epoch not at ascending node
self.orbit_elements.an_time = self.get_last_an_time(self.tle.epoch)
else:
# Epoch at ascending node (z < 1 km) and positive v_z
self.orbit_elements.an_time = self.tle.epoch
self.orbit_elements.an_period = self.orbit_elements.an_time - \
self.get_last_an_time(self.orbit_elements.an_time
- timedelta(minutes=10))
def getdata(satnum):
c.execute('SELECT EPOCH,TLE_LINE0,TLE_LINE1,TLE_LINE2,FILE FROM DATA WHERE NORAD_CAT_ID = {satnum} ORDER BY EPOCH'.format(satnum=satnum));
all_rows= c.fetchall()
if len(all_rows)==0:
print "Sat ",satname," not found"
exit(1)
data=[]
print "[%5d] %s (%s-%s) latest=%s"%(satnum,all_rows[0][1][2:],all_rows[0][0],all_rows[-1][0],all_rows[-1][4])
for line in all_rows:
ep,l0,l1,l2,file=line
tle=tlefile.read(ep, line1=l1,line2=l2)
dt=datetime.strptime(ep,"%Y-%m-%d %H:%M:%S")
inc=tle.inclination
raan=tle.right_ascension # Right Ascension of the Ascending Node [deg]
e=tle.excentricity # (Ra-Rp)/(Ra+Rp)
w=tle.arg_perigee # Argument of periapsis [deg]
n=tle.mean_motion # Mean motion [Revs per day]
Sm=(mu/(n*2*math.pi/(24*3600))**2)**(1./3) # Semi-major axis [km]
Ra=e*Sm+Sm # Apogee (farthest point)
Rp=-e*Sm+Sm # Perigree (nearest point)
raan_off= (tle.epoch-datetime.strptime("1996", "%Y")).total_seconds()*1
plane=(raan-raan_off*omega_p/math.pi*180)%360
if verbose:
print "time:",ep
print "Sm [km]:",Sm
print "Ra [km]:",Ra-R0
print "Rp [km]:",Rp-R0
print "e :",e
print "inc [°]:",inc
print "RAAN [°]:",raan
print "w [°]:",w
print "B* :",tle.bstar
print "plane[°]:",plane
print ""
if raan>180: raan-=360
if plane>180: plane-=360
data.append((dt, inc, Sm-R0, plane, e, w, raan, Ra-R0, Rp-R0, tle.bstar))
return data
def __init__(self, satellite, tle_file=None, line1=None, line2=None):
satellite = satellite.upper()
self.satellite_name = satellite
self.tle = tlefile.read(satellite,
tle_file=tle_file,
line1=line1,
line2=line2)
self.orbit_elements = OrbitElements(self.tle)
self._sgdp4 = _SGDP4(self.orbit_elements)
pos_epoch, vel_epoch = self.get_position(self.tle.epoch,
normalize=False)
if np.abs(pos_epoch[2]) > 1 or not vel_epoch[2] > 0:
# Epoch not at ascending node
self.orbit_elements.an_time = self.get_last_an_time(self.tle.epoch)
else:
# Epoch at ascending node (z < 1 km) and positive v_z
self.orbit_elements.an_time = self.tle.epoch
self.orbit_elements.an_period = self.orbit_elements.an_time - \
self.get_last_an_time(self.orbit_elements.an_time
- timedelta(minutes=10))
def import_satellites_from_file(path_to_file):
"""Импортирует данные из файла в формате tle в базу данных.
@param: path_to_file Путь к файлу с tle наборами.
"""
with open(path_to_file) as f:
lines = f.read()[:-1].split('\n')
tles = [lines[i:i+3] for i in range(0, len(lines),3)]
for tle in tles:
s = tlefile.read('', line1 = tle[1], line2 = tle[2])
sat = Satellite(name=tle[0].strip(),
number=int(s.satnumber),
classification=s.classification,
id_launch_year=int(s.id_launch_year),
id_launch_number=int(s.id_launch_number),
id_launch_piece=s.id_launch_piece,
epoch=s.epoch,
excentricity=s.excentricity,
inclination=s.inclination,
right_ascension=s.right_ascension,
arg_perigee=s.arg_perigee,
mean_anomaly=s.mean_anomaly,
mean_motion=s.mean_motion,
mean_motion_derivative=s.mean_motion_derivative,
mean_motion_sec_derivative=s.mean_motion_sec_derivative,
bstar=s.bstar,
version=s.element_number,
revolutions=s.orbit)
shared.session.save(sat)
def cubesat_t(cubesat, x):
TCP_IP = '127.0.0.1'
TCP_PORT = 5005
BUFFER_SIZE = 1024
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if x == 1:
s.connect((TCP_IP, TCP_PORT))
response = urllib2.urlopen(
'http://celestrak.com/NORAD/elements/cubesat.txt')
html = response.read()
f = open('tle1.txt', 'r+')
f.write(html)
f.close()
tle = tlefile.read(cubesat, 'tle1.txt')
inc = tle.inclination
print(inc)
lon, lat = -1.394, 50.9354
alt = 41
utc_time = datetime.datetime.utcnow()
passhrs = 20
o = orbital.Orbital('tisat 1', 'tle1.txt')
print(o)
p = o.get_next_passes(utc_time, passhrs, lon, lat, alt)
print(p)
for i in range(0, len(p)):
d1 = o.get_observer_look(p[i][0], lon, lat, alt)
d2 = o.get_observer_look(p[i][1], lon, lat, alt)
d3 = o.get_observer_look(p[i][2], lon, lat, alt)
print(i + 1)
print 'start time:', p[i][0]
print 'AOS azimuth, elevation:', d1[0], d1[1]
print 'maximum elevation time:', p[i][2]
print 'Max azimuth, elevation:', d3[0], d3[1]
print 'end time:', p[i][1]
print 'LOS azimuth, elevation:', d2[0], d2[1]
ip = 0
t = [1]
for i in range(len(t)):
l = p[i][0]
dt = 2
if l.minute != 0 and l.minute != 1:
utctime2 = datetime.datetime(l.year, l.month, l.day, l.hour,
l.minute - 2, l.second)
else:
utctime2 = datetime.datetime(l.year, l.month, l.day, l.hour - 1,
59, l.second)
if (utctime2.second % 2 == 0):
utctime1 = utctime2
else:
utctime2 = datetime.datetime(l.year, l.month, l.day, l.hour - 1,
59, l.second - 1)
utctime1 = utctime2
while p[i][1] >= utctime1:
if utctime1.second < 58:
utctime1 = datetime.datetime(utctime1.year, utctime1.month,
utctime1.day, utctime1.hour,
utctime1.minute,
utctime1.second + dt)
elif utctime1.second == 58:
if utctime1.minute < 59:
utctime1 = datetime.datetime(utctime1.year, utctime1.month,
utctime1.day, utctime1.hour,
utctime1.minute + 1, 0)
elif utctime1.minute == 59:
if utctime1.hour < 23:
utctime1 = datetime.datetime(utctime1.year,
utctime1.month,
utctime1.day,
utctime1.hour + 1, 0, 0)
elif utctime1.hour == 23:
if utctime1.month in [1, 3, 5, 7, 8, 10, 12
] and utctime1.day < 31:
utctime1 = datetime.datetime(
utctime1.year, utctime1.month,
utctime1.day + 1, 0, 0, 0)
elif utctime1.month in [1, 3, 5, 7, 8, 10, 12
] and utctime1.day == 31:
utctime1 = datetime.datetime(
utctime1.year, utctime1.month + 1, 1, 0, 0, 0)
elif utctime1.month in [4, 6, 9, 11
] and utctime1.month < 30:
utctime1 = datetime.datetime(
utctime1.year, utctime1.day, utctime1.day + 1,
0, 0, 0)
elif utctime1.month in [4, 6, 9, 11
] and utctime1.month == 30:
utctime1 = datetime.datetime(
utctime1.year, utctime1.day + 1, 1, 0, 0, 0)
if p[i][0] <= utctime1:
look = o.get_observer_look(utctime1, lon, lat, alt)
"print look,utctime1"
angle = ["%.3G" % (look[0]), "%.3G" % (look[1])]
msg1 = str(angle[0]) + ',' + str(angle[1])
if x == 1:
s.send(msg1)
print msg1
time.sleep(2)
ip = ip + 1
return ()
def cubesat_t(cubesat,x):
TCP_IP = '127.0.0.1'
TCP_PORT = 5005
BUFFER_SIZE = 1024
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if x==1:
s.connect((TCP_IP, TCP_PORT))
response = urllib2.urlopen('http://celestrak.com/NORAD/elements/cubesat.txt')
html = response.read()
f = open('tle1.txt', 'r+')
f.write(html)
f.close()
tle=tlefile.read(cubesat,'tle1.txt')
inc = tle.inclination
print(inc)
lon,lat = -1.394,50.9354
alt=41
utc_time = datetime.datetime.utcnow()
passhrs=20
o=orbital.Orbital('tisat 1','tle1.txt')
print(o)
p=o.get_next_passes(utc_time,passhrs,lon,lat,alt)
print(p)
for i in range(0,len(p)):
d1=o.get_observer_look(p[i][0], lon, lat, alt)
d2=o.get_observer_look(p[i][1], lon, lat, alt)
d3=o.get_observer_look(p[i][2], lon, lat, alt)
print(i+1)
print 'start time:', p[i][0]
print'AOS azimuth, elevation:' ,d1[0],d1[1]
print'maximum elevation time:', p[i][2]
print'Max azimuth, elevation:' ,d3[0],d3[1]
print'end time:', p[i][1]
print'LOS azimuth, elevation:' ,d2[0],d2[1]
ip=0
t=[1]
for i in range(len(t)):
l=p[i][0]
dt=2
if l.minute!=0 and l.minute!=1:
utctime2=datetime.datetime(l.year,l.month,l.day,l.hour,l.minute-2,l.second)
else:
utctime2=datetime.datetime(l.year,l.month,l.day,l.hour-1,59,l.second)
if (utctime2.second%2==0) :
utctime1=utctime2
else:
utctime2=datetime.datetime(l.year,l.month,l.day,l.hour-1,59,l.second-1)
utctime1=utctime2
while p[i][1]>=utctime1:
if utctime1.second<58:
utctime1=datetime.datetime(utctime1.year,utctime1.month,utctime1.day,utctime1.hour,utctime1.minute,utctime1.second+dt)
elif utctime1.second==58:
if utctime1.minute<59:
utctime1=datetime.datetime(utctime1.year,utctime1.month,utctime1.day,utctime1.hour,utctime1.minute+1,0)
elif utctime1.minute==59:
if utctime1.hour<23:
utctime1=datetime.datetime(utctime1.year,utctime1.month,utctime1.day,utctime1.hour+1,0,0)
elif utctime1.hour==23:
if utctime1.month in [1,3,5,7,8,10,12] and utctime1.day<31:
utctime1=datetime.datetime(utctime1.year,utctime1.month,utctime1.day+1,0,0,0)
elif utctime1.month in [1,3,5,7,8,10,12] and utctime1.day==31:
utctime1=datetime.datetime(utctime1.year,utctime1.month+1,1,0,0,0)
elif utctime1.month in [4,6,9,11] and utctime1.month<30:
utctime1=datetime.datetime(utctime1.year,utctime1.day,utctime1.day+1,0,0,0)
elif utctime1.month in [4,6,9,11] and utctime1.month==30:
utctime1=datetime.datetime(utctime1.year,utctime1.day+1,1,0,0,0)
if p[i][0]<=utctime1:
look=o.get_observer_look(utctime1,lon,lat,alt)
"print look,utctime1"
angle=["%.3G" % (look[0]),"%.3G" % (look[1])]
msg1= str(angle[0])+','+str(angle[1])
if x==1:
s.send(msg1)
print msg1
time.sleep(2)
ip=ip+1
return()
return(z, nlat, nlon)
def parallax_shift(map):
""" Shift for a given map object and corresponding height information
high clouds due to the parallax effect.
Keyword arguments:
"""
# Create TLE file for MSG 10
line1 = "1 38552U 12035B 16165.27110250 -.00000007 00000-0 00000+0 0 9998"
line2 = "2 38552 0.7862 86.5431 0001426 165.7440 107.6925 1.00282029 14565"
msgtle = tlefile.read('meteosat 10', line1=line1, line2=line2)
msgorb = Orbital('meteosat 10', line1=msgtle.line1, line2=msgtle.line2)
# Offenbach test location
t = datetime.datetime(2016, 4, 29, 12, 00)
lat = 50.0956
lon = 8.7761
alt = 109.
h = 8000.
get_parallaxed_coor('meteosat 10', msgtle, t, lat, lon, alt, h)
# Algeria test location
t = datetime.datetime(2016, 4, 29, 12, 00)
lat = 0.00
lon = 25.00
alt = 0.
from pyorbital.orbital import Orbital
from datetime import datetime, timedelta
import time
import calendar
SIDERAL_DAY_SEC = 86164.0905
MU = 398600 # Earth standard gravitational parameter
satellite = sys.argv[1]
userLat = float(sys.argv[2])
userLng = float(sys.argv[3])
userAlt = float(sys.argv[4])
line1 = sys.argv[5]
line2 = sys.argv[6]
tle = tlefile.read(satellite, None, line1, line2)
orb = Orbital(satellite, None, line1, line2)
now = datetime.utcnow()
# Get normalized position and velocity of the satellite:
pos, vel = orb.get_position(now)
# Get longitude, latitude and altitude of the satellite:
position = orb.get_lonlatalt(now)
data = {}
timestamp = calendar.timegm(now.utctimetuple())
az, el = orb.get_observer_look(now, userLng, userLat, userAlt);
from math import pow, degrees, radians, pi, sin, cos, sqrt
from scipy import mat, arctan, arctan2, integrate #pi, cos, sin,
# graphics modules
from mayavi import mlab
import matplotlib.pyplot as plt
from pylab import ion #, plots
from tvtk.tools import visual
# $python setup.py install for first time
#import geomag
# -----------------------------------------------------------------------------
# Load the ISS TLE
#tle = tlefile.read('ISS (ZARYA)') # reads TLE from the celestrack website
tle = tlefile.read('ISS (ZARYA)', tle_folder + 'stations.txt')
#print tle.epoch
orb = Orbital("ISS (ZARYA)", tle_folder + 'stations.txt')
#now = datetime.utcnow() # for real time
now = datetime(2013, 05, 31, 22, 0, 0)
pos0 = orb.get_position(now, normalize=False)
lon, lat, alt = orb.get_lonlatalt(now)
print "\nSatellite Lat Lon Alt: ", lat, lon, alt, "\n"
print "\nSatellite Position (normalized):", pos0[0], "\n"
vector_zero = osl.vector_zero
###############################################################################
r_earth = 6371.0 # km
r = r_earth
def SatStats():
#tle = r"C:\Users\Jake\Python\TLE Files\stations-tle.txt"
# Download TLE file
#downloadUrl = "http://www.celestrak.com/NORAD/elements/stations.txt"
#urllib.request.urlretrieve(downloadUrl, tle)
tle = GetTLEFile()
stationList = GetStationList(tle)
try:
while (True):
stationNumber = input("Enter Station Number: ")
print()
if stationNumber == 'n':
for name in enumerate(stationList):
print(name[0], ':', name[1].replace('\n', ''))
print()
else:
break
stationNumber = int(stationNumber)
if stationNumber < len(stationList):
# Get Platform Object
station = stationList[stationNumber]
stationObject = tlefile.read(station, tle)
GoogleSearch(station)
# Print Platform Info
PrintTLEInfo(stationObject, station)
lon, lat, alt, now = GetGPSPosition(station, tle,
datetime.utcnow())
dmLon, dmLat = DegreeMinutes(lon, lat)
print("Current GPS location:\n",
"Latitude: ",
lat,
" Longitude: ",
lon,
" Altitude (km): ",
alt,
sep='')
print("Current GPS location:\n",
"Latitude: ",
dmLat,
" Longitude: ",
dmLon,
" Altitude (km): ",
alt,
sep='')
satOrb = Orbital(station, tle)
print()
PrintFreqData(
GetFreqData(
station,
"C:/Users/Jake/Python/Satellite Tracker/frequencies/satfreqlist.csv"
))
passes = satOrb.get_next_passes(datetime.utcnow(), 120,
-90.5546910, 38.6475290, 180.85)
print("Next passes in 5 days (Max Elevation Above 20 deg):")
for eachPass in passes:
rise = eachPass[0]
fall = eachPass[1]
apex = eachPass[2]
# Lon, Lat
obsRiseAngle, obsRiseElv = satOrb.get_observer_look(
rise, -90.5546910, 38.6475290, 180.85)
obsFallAngle, obsFallElv = satOrb.get_observer_look(
fall, -90.5546910, 38.6475290, 180.85)
obsApexAngle, obsApexElv = satOrb.get_observer_look(
apex, -90.5546910, 38.6475290, 180.85)
if obsApexElv >= 20.0:
print("Rise Time:", rise, "Azimuth:",
round(obsRiseAngle, 2), '(',
AzimuthDirection(obsRiseAngle), ')', "Elevation:",
abs(round(obsRiseElv, 2)))
print("Apex Time:", apex, "Azimuth:",
round(obsApexAngle, 2), '(',
AzimuthDirection(obsApexAngle), ')', "Elevation:",
abs(round(obsApexElv, 2)))
print("Fall Time:", fall, "Azimuth:",
round(obsFallAngle, 2), '(',
AzimuthDirection(obsFallAngle), ')', "Elevation:",
abs(round(obsFallElv, 2)))
print()
except:
pass
def getUpcomingPasses(satellite_name, tle_information, passes_begin_time, passes_period):
observer = ephem.Observer()
observer.lat = ground_station[0]
observer.long = ground_station[1]
#updatetime = 0
period = passes_period
#Get most recent TLE for determining upcoming passes from now
tles = tle_information
# make a list of dicts to hold the upcoming pass information for the selected satellites
schedule = []
observer.date = passes_begin_time
while 1:
print "---------------------------------------"
for tle in tles:
if tle[0] == satellite_name:
#TODO clean up the use of pyephem versus orbital. Orbital can give a orbit number and does many of the pyephem functions
#TODO add the individual acquisitions as layers in the same ogr output
#TODO use an appropriate google earth icon for satellites at a visible display resolution with a name tag and minutesaway
#TODO print output to logging
satname = str(tle[0]).replace(" ","_")
sat = ephem.readtle(tle[0],tle[1],tle[2])
twole = tlefile.read(tle[0],'tles.txt')
now = datetime.utcnow()
#TODO check age of TLE - if older than x days get_tle()
print "TLE EPOCH:",twole.epoch
#if twole.epoch < now - timedelta(days=5):
# get_tles()
# satname = str(tle[0]).replace(" ","_")
# sat = ephem.readtle(tle[0],tle[1],tle[2])
# twole = tlefile.read(tle[0],'tles.txt')
print "---------------------------------------"
print tle[0]
oi = float(str.split(tle[2],' ')[3])
orb = Orbital(tle[0])
attributes = []
rt, ra, tt, ta, st, sa = observer.next_pass(sat)
# Determine is pass descending or ascending
sat.compute(rt)
aos_lat = sat.sublat.real*(180/math.pi)
sat.compute(st)
los_lat = sat.sublat.real*(180/math.pi)
if (aos_lat > los_lat):
print "PASS = descending"
node = "descending"
else:
print "PASS = ascending"
node = "ascending"
oi = 360 - oi
AOStime = datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")
minutesaway = (AOStime-now).seconds/60.0
print "Minutes to horizon = ", minutesaway
print "AOStime = ", rt
print "LOStime = ", st
print "Transit time = ", tt
orad = orb.get_lonlatalt(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S"))[2]
attributes = {'Satellite name': satname, 'Orbit height': orad, 'Orbit': orb.get_orbit_number(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")), \
'Current time': str(now),'Minutes to horizon': minutesaway, 'AOS time': str(rt), \
'LOS time': str(st), 'Transit time': str(tt), 'Node': node}
# Append the attributes to the list of acquisitions for the acquisition period
if not any ((x['Satellite name'] == satname and x['Orbit'] == orb.get_orbit_number(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")))for x in schedule):
schedule.append(attributes)
# Step from AOS to LOS in 100 second intervals
delta = timedelta(seconds=100)
deltatime = datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")
geoeastpoint = []
geowestpoint = []
geotrack = []
print "DELTATIME", deltatime
print "SETTING TIME", datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S")
while deltatime < datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S"):
sat.compute(deltatime)
geotrack.append({'lat2': sat.sublat.real*(180/math.pi), \
'lon2': sat.sublong.real*(180/math.pi), \
'alt2': orb.get_lonlatalt(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S"))[2]*1000})
eastaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi), orad, sat._n)+90
westaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi), orad, sat._n)+270
#Set ground swath per satellite sensor
#TODO use view angle check to refine step from satellite track see IFOV
if tle[0] in ("LANDSAT 8","LANDSAT 7"):
swath = 185000/2
if tle[0] in ("TERRA","AQUA"):
swath = 2330000/2
if tle[0] in ("NOAA 15", "NOAA 18", "NOAA 19"):
swath = 1100000/2
if tle[0] == "SUOMI NPP":
swath = 2200000/2
geoeastpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, eastaz, swath))
geowestpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, westaz, swath))
deltatime = deltatime+delta
# Create current location ogr output
nowpoint = [{'lat2':orb.get_lonlatalt(datetime.utcnow())[1],'lon2':orb.get_lonlatalt(datetime.utcnow())[0],'alt2':orb.get_lonlatalt(datetime.utcnow())[2]*1000}]
#TODO ensure the now attributes are actually attributes for the current position of the satellite and include relevant next pass information...tricky?
#if ((attributes['Orbit']==orb.get_orbit_number(datetime.utcnow()))and(AOStime<now)):
now_attributes = {'Satellite name': satname, 'Orbit height': orb.get_lonlatalt(datetime.utcnow())[2], 'Orbit': orb.get_orbit_number(datetime.utcnow()), \
'Current time': str(now),'Minutes to horizon': "N/A", 'AOS time': "N/A", \
'LOS time': "N/A", 'Transit time': "N/A", 'Node': "N/A"}
#now_attributes=attributes
CURRENT_POSITION_FILENAME = satname+"_current_position.kml"
#TODO draw the current orbit forward for the passes period time from the satellite position as a long stepped ogr line
getVectorFile(now_attributes,nowpoint,'point', CURRENT_POSITION_FILENAME, 'KML')
polypoints = []
for x in geowestpoint:
polypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
for x in reversed(geoeastpoint):
polypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
if len(polypoints)>0:
polypoints.append({'lat2':geowestpoint[0]['lat2'],'lon2':geowestpoint[0]['lon2']})
# Create swath footprint ogr output
SWATH_FILENAME = os.path.join(output_path,satname+"."+str(orb.get_orbit_number(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S")))+".ALICE.orbit_swath.kml")
ORBIT_FILENAME = os.path.join(output_path,satname+"."+str(orb.get_orbit_number(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S")))+".ALICE.orbit_track.kml")
TRACKING_SWATH_FILENAME = os.path.join(output_path,satname+"_tracking_now.kml")
# Create currently acquiring polygon
#TODO def this
# Step from AOS to current time second intervals
observer.date=datetime.utcnow()
sat.compute(observer)
tkdelta = timedelta(seconds=100)
tkrt, tkra, tktt, tkta, tkst, tksa = observer.next_pass(sat)
tkdeltatime = datetime.utcnow()
tkgeoeastpoint = []
tkgeowestpoint = []
tkgeotrack = []
while tkdeltatime < (datetime.utcnow() or datetime.strptime(str(tkst),"%Y/%m/%d %H:%M:%S")):
sat.compute(tkdeltatime)
tkgeotrack.append({'lat2':sat.sublat.real*(180/math.pi),'lon2':sat.sublong.real*(180/math.pi),'alt2':orb.get_lonlatalt(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S"))[2]})
tkeastaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi),orad,sat._n)+90
tkwestaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi),orad,sat._n)+270
#TODO use view angle check to refine step from satellite track see IFOV
if tle[0] in ("LANDSAT 8","LANDSAT 7"):
tkswath = 185000/2
if tle[0] in ("TERRA","AQUA"):
tkswath = 2330000/2
if tle[0] in ("NOAA 15", "NOAA 18", "NOAA 19"):
tkswath = 1100000/2
if tle[0] == "SUOMI NPP":
tkswath = 2200000/2
tkgeoeastpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, tkeastaz, tkswath))
tkgeowestpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, tkwestaz, tkswath))
tkdeltatime = tkdeltatime+tkdelta
tkpolypoints = []
for x in tkgeowestpoint:
tkpolypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
for x in reversed(tkgeoeastpoint):
tkpolypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
if len(tkpolypoints)>0:
tkpolypoints.append({'lat2':tkgeowestpoint[0]['lat2'],'lon2':tkgeowestpoint[0]['lon2']})
if not ((attributes['Node']=="ascending")and(satname not in ("AQUA"))):
# Create swath ogr output
getVectorFile(attributes,polypoints,'polygon', SWATH_FILENAME, 'KML')
# Create orbit track ogr output
getVectorFile(attributes,geotrack,'line', ORBIT_FILENAME, 'KML')
# Create currently acquiring ogr output
if ((now >= datetime.strptime(str(tkrt),"%Y/%m/%d %H:%M:%S")) and (now <= datetime.strptime(str(tkst),"%Y/%m/%d %H:%M:%S"))):
getVectorFile(now_attributes,tkpolypoints,'polygon', TRACKING_SWATH_FILENAME, 'KML')
if minutesaway <= period:
print "---------------------------------------"
print tle[0], 'WILL BE MAKING A PASS IN ', minutesaway, " MINUTES"
print ' Rise Azimuth: ', ra
print ' Transit Time: ', tt
print ' Transit Altitude: ', ta
print ' Set Time: ', st
print ' Set Azimuth: ', sa
for x in sorted(schedule, key=lambda k: k['AOS time']):
print x
# For dictionary entries with 'LOS time' older than now time - remove
if ((datetime.strptime(str(x['LOS time']),"%Y/%m/%d %H:%M:%S"))<(datetime.utcnow())):
# Delete output ogr
if os.path.exists(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_swath.kml")):
os.remove(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_swath.kml"))
if os.path.exists(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_track.kml")):
os.remove(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_track.kml"))
# Delete dictionary entry for pass
schedule.remove(x)
# Unlikely - if no entries in the schedule don't try to print it
if len(schedule)>0:
print (datetime.strptime(str(schedule[0]['AOS time']),"%Y/%m/%d %H:%M:%S"))
# If the AOS time is less than now + the time delta, shift the time to the latest recorded pass LOS time
if ((datetime.strptime(str(schedule[len(schedule)-1]['AOS time']),"%Y/%m/%d %H:%M:%S")<(datetime.utcnow()+timedelta(minutes=period)))):
observer.date = (datetime.strptime(str(schedule[len(schedule)-1]['LOS time']),"%Y/%m/%d %H:%M:%S")+timedelta(minutes=5))
# Recompute the satellite position for the update time
sat.compute(observer)
print "MODIFIED OBSERVER DATE",observer.date
else:
print "--------NOTHING TO MODIFY MOVING TO NEXT SATELLITE IN LIST------"
#TODO - write to html
# Exit the def if the schedule isn't able to update because there are no passes in the acquisition window
return ()
time.sleep(1*sleep_status)
return ()
def SatStats():
#tle = r"C:\Users\Jake\Python\TLE Files\stations-tle.txt"
# Download TLE file
#downloadUrl = "http://www.celestrak.com/NORAD/elements/stations.txt"
#urllib.request.urlretrieve(downloadUrl, tle)
tle = GetTLEFile()
stationList = GetStationList(tle)
try:
while(True):
stationNumber = input("Enter Station Number: ")
print()
if stationNumber == 'n':
for name in enumerate(stationList):
print(name[0], ':', name[1].replace('\n', ''))
print()
else:
break
stationNumber = int(stationNumber)
if stationNumber < len(stationList):
# Get Platform Object
station = stationList[stationNumber]
stationObject = tlefile.read(station, tle)
GoogleSearch(station)
# Print Platform Info
PrintTLEInfo(stationObject, station)
lon, lat, alt, now = GetGPSPosition(station, tle, datetime.utcnow())
dmLon, dmLat = DegreeMinutes(lon, lat)
print("Current GPS location:\n", "Latitude: ", lat, " Longitude: ", lon, " Altitude (km): ", alt, sep='')
print("Current GPS location:\n", "Latitude: ", dmLat, " Longitude: ", dmLon, " Altitude (km): ", alt, sep='')
satOrb = Orbital(station, tle)
print()
PrintFreqData(GetFreqData(station, "C:/Users/Jake/Python/Satellite Tracker/frequencies/satfreqlist.csv"))
passes = satOrb.get_next_passes(datetime.utcnow(), 120, -90.5546910, 38.6475290, 180.85)
print("Next passes in 5 days (Max Elevation Above 20 deg):")
for eachPass in passes:
rise = eachPass[0]
fall = eachPass[1]
apex = eachPass[2]
# Lon, Lat
obsRiseAngle, obsRiseElv = satOrb.get_observer_look(rise, -90.5546910, 38.6475290, 180.85)
obsFallAngle, obsFallElv = satOrb.get_observer_look(fall, -90.5546910, 38.6475290, 180.85)
obsApexAngle, obsApexElv = satOrb.get_observer_look(apex, -90.5546910, 38.6475290, 180.85)
if obsApexElv >= 20.0:
print("Rise Time:", rise, "Azimuth:", round(obsRiseAngle, 2),
'(', AzimuthDirection(obsRiseAngle), ')', "Elevation:", abs(round(obsRiseElv, 2)))
print("Apex Time:", apex, "Azimuth:", round(obsApexAngle, 2),
'(', AzimuthDirection(obsApexAngle), ')', "Elevation:", abs(round(obsApexElv, 2)))
print("Fall Time:", fall, "Azimuth:", round(obsFallAngle, 2),
'(', AzimuthDirection(obsFallAngle), ')', "Elevation:", abs(round(obsFallElv, 2)))
print()
except:
pass
description="Compute ISS orbit geometry vs time")
parser.add_argument("sourcename", help="Source name to look up coordinates")
parser.add_argument("--ra ",
dest='ra',
help="Source RA [default: lookup]",
default=None)
parser.add_argument("--dec",
dest='dec',
help="Source DEC [default: lookup]",
default=None)
parser.add_argument("--vis", help="Visibility file from Wayne", default=None)
args = parser.parse_args()
# Set up two TLEs so we can compute the precession rate from the
# change of RA of ascending node with time
tle1 = tlefile.read(platform, line1=tle160lines[0], line2=tle160lines[1])
tle2 = tlefile.read(platform, line1=tle167lines[0], line2=tle167lines[1])
print(platform)
ISSInclination = tle2.inclination * u.deg
print("Inclination = {0:.3f}".format(ISSInclination))
StarboardPoleDec0 = -1 * (90.0 * u.deg - ISSInclination)
PortPoleDec0 = -1 * StarboardPoleDec0
print("Starboard Orbit Pole Declination {0:.2f}".format(StarboardPoleDec0))
print("Port Orbit Pole Declination {0:.2f}".format(PortPoleDec0))
# Compute ISS precession rate in degrees per day
ISSPrecessionRate = (tle2.right_ascension - tle1.right_ascension) / (
tle2.epoch_day - tle1.epoch_day) * u.deg / u.d
def getUpcomingPasses(satellite_name,satellite_swath,tle_information, passes_begin_time, passes_period):
observer = ephem.Observer()
observer.lat = GROUND_STATION[0]
observer.long = GROUND_STATION[1]
#updatetime = 0
period = passes_period
#Get most recent TLE for determining upcoming passes from now
tles = tle_information
# make a list of dicts to hold the upcoming pass information for the selected satellites
SCHEDULE = []
observer.date = passes_begin_time
while 1:
for tle in tles:
if tle[0].strip()== satellite_name:
#TODO clean up the use of pyephem versus orbital. Orbital can give a orbit number and does many of the pyephem functions
#TODO add the individual acquisitions as layers in the same ogr output
#TODO use an appropriate google earth icon for satellites at a visible display resolution with a name tag and minutesaway
#TODO print output to logging
satname = str(tle[0]).replace(" ","_")
sat = ephem.readtle(tle[0],tle[1],tle[2])
twole = tlefile.read(tle[0],DATA_IN_DIR+'tles.txt')
now = datetime.utcnow()
#TODO check age of TLE - if older than x days get_tle()
# print "TLE EPOCH:",twole.epoch
oi = float(str.split(tle[2],' ')[3])
orb = Orbital(tle[0])
attributes = []
rt, ra, tt, ta, st, sa = observer.next_pass(sat)
# Determine is pass descending or ascending
sat.compute(rt)
aos_lat = sat.sublat.real*(180/math.pi)
sat.compute(st)
los_lat = sat.sublat.real*(180/math.pi)
if (aos_lat > los_lat):
# print "PASS = descending"
node = "descending"
else:
# print "PASS = ascending"
node = "ascending"
oi = 360 - oi
AOStime = datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")
minutesaway = (AOStime-now).seconds/60.0
# print "Satellie = ", satname
# print "Minutes to horizon = ", minutesaway
# print "AOStime = ", rt
# print "LOStime = ", st
# print "Transit time = ", tt
# -----------------------------------------------------------------------------
# This is a test routine for calculating Az, El angles
# -----------------------------------------------------------------------------
orad = orb.get_lonlatalt(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S"))[2]
# print '&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&'
test_az_el_cal(orb,observer, rt, ra, tt, ta, st, sa,orad)
# print '&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&'
#
attributes = {'Satellite name': satname, 'Orbit height': orad, 'Orbit': orb.get_orbit_number(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")), \
# attributes = {'Satellite name': satname, 'Orbit height': orad, 'Orbit': orb.get_orbit_number(datetime.strptime(str(tt), "%Y/%m/%d %H:%M:%S")), \
'Current time': str(now),'Minutes to horizon': minutesaway, 'AOS time': str(rt), \
'LOS time': str(st), 'Transit time': str(tt), 'Node': node}
# Append the attributes to the list of acquisitions for the acquisition period
if not any ((x['Satellite name'] == satname and x['Orbit'] == orb.get_orbit_number(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")))for x in SCHEDULE):
# if not any ((x['Satellite name'] == satname and x['Orbit'] == orb.get_orbit_number(datetime.strptime(str(tt), "%Y/%m/%d %H:%M:%S")))for x in SCHEDULE):
SCHEDULE.append(attributes)
# Step from AOS to LOS in 100 second intervals
# delta = timedelta(seconds=100)
delta = timedelta(seconds=DELTA_TIME_STEP)
deltatime = datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")
geoeastpoint = []
geowestpoint = []
geotrack = []
# print "DELTATIME", deltatime
# print "SETTING TIME", datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S")
# Tesing for next satellite
# --------------------------------------------------------------------------------------------
# --------------------------------------------------------------------------------------------
# The following set of lines have been for testing while making comparision in seconds
# instead of string comparisiom
# --------------------------------------------------------------------------------------------
# --------------------------------------------------------------------------------------------
# print '================ Testing Loop starts ==========================================='
# print 'deltatime = ',deltatime
# print 'Secs Time = ', get_time_secs(str(deltatime).replace("-","/"))
# print 'st = ',str(datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S"))
# print 'st in Secs Time = ',get_time_secs(str(datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S")).replace('-','/'))
# print '================ Testing Loop Ends ==========================================='
# The following if statement has ben included on the basis of dpoch seconds
#
if get_time_secs(str(deltatime).replace("-","/")) >= \
get_time_secs(str(datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S")).replace('-','/')):
return()
print 'Delta Time = ',deltatime
print 'date time = ',datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S")
print '---------------------------'
# if deltatime >= datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S"):
# return()
while deltatime < datetime.strptime(str(st), "%Y/%m/%d %H:%M:%S"):
sat.compute(deltatime)
geotrack.append({'lat2': sat.sublat.real*(180/math.pi), \
'lon2': sat.sublong.real*(180/math.pi), \
'alt2': orb.get_lonlatalt(datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S"))[2]*1000})
eastaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi), orad, sat._n)+90
westaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi), orad, sat._n)+270
#Set ground swath per satellite sensor
#TODO use view angle check to refine step from satellite track see IFOV
swath = float(satellite_swath)/2.
geoeastpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, eastaz, swath))
geowestpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, westaz, swath))
deltatime = deltatime+delta
# Create current location ogr output
nowpoint = [{'lat2':orb.get_lonlatalt(datetime.utcnow())[1],'lon2':orb.get_lonlatalt(datetime.utcnow())[0],'alt2':orb.get_lonlatalt(datetime.utcnow())[2]*1000}]
#TODO ensure the now attributes are actually attributes for the current position of the satellite and include relevant next pass information...tricky?
#if ((attributes['Orbit']==orb.get_orbit_number(datetime.utcnow()))and(AOStime<now)):
now_attributes = {'Satellite name': satname, 'Orbit height': orb.get_lonlatalt(datetime.utcnow())[2], 'Orbit': orb.get_orbit_number(datetime.utcnow()), \
'Current time': str(now),'Minutes to horizon': "N/A", 'AOS time': "N/A", \
'LOS time': "N/A", 'Transit time': "N/A", 'Node': "N/A"}
#now_attributes=attributes
#CURRENT_POSITION_FILENAME = satname+"_current_position.kml"
CURRENT_POSITION_FILENAME = OUTPUT_DIR+satname+"_current_position.kml"
#TODO draw the current orbit forward for the passes period time from the satellite position as a long stepped ogr line
getVectorFile(now_attributes,nowpoint,'point', CURRENT_POSITION_FILENAME, 'KML')
polypoints = []
for x in geowestpoint:
polypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
for x in reversed(geoeastpoint):
polypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
if len(polypoints)>0:
polypoints.append({'lat2':geowestpoint[0]['lat2'],'lon2':geowestpoint[0]['lon2']})
# Create swath footprint ogr output
SWATH_FILENAME = os.path.join(output_path,satname+"."+str(orb.get_orbit_number(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S")))+".ALICE.orbit_swath.kml")
ORBIT_FILENAME = os.path.join(output_path,satname+"."+str(orb.get_orbit_number(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S")))+".ALICE.orbit_track.kml")
TRACKING_SWATH_FILENAME = os.path.join(output_path,satname+"_tracking_now.kml")
# Create currently acquiring polygon
#TODO def this
# Step from AOS to current time second intervals
observer.date=datetime.utcnow()
sat.compute(observer)
# tkdelta = timedelta(seconds=100)
tkdelta = timedelta(seconds=DELTA_TIME_STEP)
tkrt, tkra, tktt, tkta, tkst, tksa = observer.next_pass(sat)
tkdeltatime = datetime.utcnow()
tkgeoeastpoint = []
tkgeowestpoint = []
tkgeotrack = []
while tkdeltatime < (datetime.utcnow() or datetime.strptime(str(tkst),"%Y/%m/%d %H:%M:%S")):
sat.compute(tkdeltatime)
tkgeotrack.append({'lat2':sat.sublat.real*(180/math.pi),'lon2':sat.sublong.real*(180/math.pi),'alt2':orb.get_lonlatalt(datetime.strptime(str(rt),"%Y/%m/%d %H:%M:%S"))[2]})
tkeastaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi),orad,sat._n)+90
tkwestaz = getEffectiveHeading(sat,oi,sat.sublat.real*(180/math.pi), sat.sublong.real*(180/math.pi),orad,sat._n)+270
#TODO use view angle check to refine step from satellite track see IFOV
tkswath = float(satellite_swath)/2.
tkgeoeastpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, tkeastaz, tkswath))
tkgeowestpoint.append(Geodesic.WGS84.Direct(sat.sublat.real*180/math.pi, sat.sublong.real*180/math.pi, tkwestaz, tkswath))
tkdeltatime = tkdeltatime+tkdelta
tkpolypoints = []
for x in tkgeowestpoint:
tkpolypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
for x in reversed(tkgeoeastpoint):
tkpolypoints.append({'lat2':x['lat2'],'lon2':x['lon2']})
if len(tkpolypoints)>0:
tkpolypoints.append({'lat2':tkgeowestpoint[0]['lat2'],'lon2':tkgeowestpoint[0]['lon2']})
if not ((attributes['Node']=="ascending")and(satname not in ("AQUA"))):
# Create swath ogr output
getVectorFile(attributes,polypoints,'polygon', SWATH_FILENAME, 'KML')
# Create orbit track ogr output
getVectorFile(attributes,geotrack,'line', ORBIT_FILENAME, 'KML')
# Create currently acquiring ogr output
if ((now >= datetime.strptime(str(tkrt),"%Y/%m/%d %H:%M:%S")) and (now <= datetime.strptime(str(tkst),"%Y/%m/%d %H:%M:%S"))):
getVectorFile(now_attributes,tkpolypoints,'polygon', TRACKING_SWATH_FILENAME, 'KML')
if minutesaway <= period:
# print tle[0], 'WILL BE MAKING A PASS IN ', minutesaway, " MINUTES"
# print ' Rise Azimuth: ', ra
# print ' Transit Time: ', tt
# print ' Transit Altitude: ', ta
# print ' Set Time: ', st
# print ' Set Azimuth: ', sa
# print '================================================='
# print 'Satellite Name = ',satellite_name
for x in sorted(SCHEDULE, key=lambda k: k['AOS time']):
# print x
output_orbit_parameters(x)
# For dictionary entries with 'LOS time' older than now time - remove
if ((datetime.strptime(str(x['LOS time']),"%Y/%m/%d %H:%M:%S"))<(datetime.utcnow())):
# Delete output ogr
if os.path.exists(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_swath.kml")):
os.remove(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_swath.kml"))
if os.path.exists(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_track.kml")):
os.remove(os.path.join(output_path,satname+"."+str(x['Orbit'])+".ALICE.orbit_track.kml"))
# Delete dictionary entry for pass
SCHEDULE.remove(x)
# Unlikely - if no entries in the SCHEDULE don't try to print it
if len(SCHEDULE)>0:
print (datetime.strptime(str(SCHEDULE[0]['AOS time']),"%Y/%m/%d %H:%M:%S"))
# If the AOS time is less than now + the time delta, shift the time to the latest recorded pass LOS time
if ((datetime.strptime(str(SCHEDULE[len(SCHEDULE)-1]['AOS time']),"%Y/%m/%d %H:%M:%S")<(datetime.utcnow()+timedelta(minutes=period)))):
observer.date = (datetime.strptime(str(SCHEDULE[len(SCHEDULE)-1]['LOS time']),"%Y/%m/%d %H:%M:%S")+timedelta(minutes=5))
# Recompute the satellite position for the update time
sat.compute(observer)
# print "MODIFIED OBSERVER DATE",observer.date
else:
# print "--------NOTHING TO MODIFY MOVING TO NEXT SATELLITE IN LIST------"
#TODO - write to html
# Exit the def if the SCHEDULE isn't able to update because there are no passes in the acquisition window
return ()
# print 'Before Time Sleep ......'
# print 'Loop for While .........'
print '============================================================================='
time.sleep(1*SLEEP_STATUS)
return ()
def addSat(self):
add_sat = self.avail_sats_lst.get(self.avail_sats_lst.curselection())
self.ax_cov.append(
self.ax.fill([0, 0], [0, 0],
transform=Geodetic(),
color='white',
alpha=self.cov_alpha)[0])
self.sat_txt.append(
self.ax.text([], [],
"",
color='yellow',
size=8,
transform=Geodetic(),
ha="center"))
if (add_sat in self.argos):
self.createSatFromFile(add_sat, "TLE/argos.txt",
"Argos Data Collection System")
elif (add_sat in self.cubesat):
self.createSatFromFile(add_sat, "TLE/cubesat.txt", "CubeSat")
elif (add_sat in self.dmc):
self.createSatFromFile(add_sat, "TLE/dmc.txt",
"Disaster Monitoring")
elif (add_sat in self.goes):
self.createSatFromFile(add_sat, "TLE/goes.txt", "GOES")
elif (add_sat in self.intelsat):
self.createSatFromFile(add_sat, "TLE/intelsat.txt", "Intelsat")
elif (add_sat in self.iridium):
self.createSatFromFile(add_sat, "TLE/iridium.txt", "Iridium")
elif (add_sat in self.iridium_next):
self.createSatFromFile(add_sat, "TLE/iridium-NEXT.txt",
"Iridium Next")
elif (add_sat in self.molniya):
self.createSatFromFile(add_sat, "TLE/molniya.txt", "Molniya")
elif (add_sat in self.noaa):
self.createSatFromFile(add_sat, "TLE/noaa.txt", "NOAA")
elif (add_sat in self.planet):
self.createSatFromFile(add_sat, "TLE/planet.txt", "Planet")
elif (add_sat in self.resource):
self.createSatFromFile(add_sat, "TLE/resource.txt",
"Earth Resources")
elif (add_sat in self.sarsat):
self.createSatFromFile(add_sat, "TLE/sarsat.txt",
"Search & Rescue")
elif (add_sat in self.spire):
self.createSatFromFile(add_sat, "TLE/spire.txt", "Spire")
elif (add_sat in self.tdrss):
self.createSatFromFile(add_sat, "TLE/tdrss.txt",
"Tracking and Data Relay")
elif (add_sat in self.tle_new):
self.createSatFromFile(add_sat, "TLE/tle-new.txt",
"Last 30 Days' Launches")
elif (add_sat in self.weather):
self.createSatFromFile(add_sat, "TLE/weather.txt", "Weather")
else:
self.Sats.append(Sat(add_sat, tle=tlefile.read(add_sat)))
self.curr_sats_lst.insert(END, add_sat)
self.sortSats()
self.srch_box.focus()
for i, sat in enumerate(self.Sats):
self.curr_sats_lst.delete(i)
self.curr_sats_lst.insert(i, sat.name)
def PulsarVis(sourcename, times):
if sourcename in {'PSRJ0030+0451', 'PSRJ0437-4715'}:
SunAvoidance = 55.0 * u.deg
else:
SunAvoidance = 45.0 * u.deg
print("Sun Avoidance: {0:.3f}".format(SunAvoidance))
MoonAvoidance = 15.0 * u.deg
# Each pulsar's feasible observation range based on ISS hardware data
if sourcename in 'PSRB1821-24': #Analysis ticket 890
HardwareUpperAvoidance = 120 * u.deg #360*u.deg
HardwareLowerAvoidance = 88 * u.deg #0*u.deg
elif sourcename in 'PSRB1937+21':
HardwareUpperAvoidance = 142.0 * u.deg #360*u.deg
HardwareLowerAvoidance = 91.0 * u.deg #0*u.deg
elif sourcename in 'PSRJ0218+4232':
HardwareUpperAvoidance = 156.0 * u.deg #360*u.deg
HardwareLowerAvoidance = 88.0 * u.deg #0*u.deg
elif sourcename in 'PSRJ0030+0451':
HardwareUpperAvoidance = 148.0 * u.deg #360*u.deg
HardwareLowerAvoidance = 95.0 * u.deg #0*u.deg
elif sourcename in 'PSRJ0437-4715':
HardwareUpperAvoidance = 95.0 * u.deg #360*u.deg
HardwareLowerAvoidance = 35.0 * u.deg #0*u.deg
else:
HardwareUpperAvoidance = 360.0 * u.deg #360*u.deg
HardwareLowerAvoidance = 0.0 * u.deg #0*u.deg
print("ISS Upper:", HardwareUpperAvoidance, "Lower:",
HardwareLowerAvoidance, "\n".format(HardwareLowerAvoidance,
HardwareUpperAvoidance))
tle160lines = [
'1 25544U 98067A 17160.91338884 +.00001442 +00000-0 +29152-4 0 9993',
'2 25544 051.6425 074.5823 0004493 253.3640 193.9362 15.54003243060621'
]
tle167lines = [
'1 25544U 98067A 17167.53403196 +.00002711 +00000-0 +48329-4 0 9994',
'2 25544 051.6431 041.5846 0004445 283.0899 147.8207 15.54043876061656'
]
platform = 'ISS (ZARYA)'
# Set up two TLEs so we can compute the precession rate from the
# change of RA of ascending node with time
tle1 = tlefile.read(platform, line1=tle160lines[0], line2=tle160lines[1])
tle2 = tlefile.read(platform, line1=tle167lines[0], line2=tle167lines[1])
# print(platform)
ISSInclination = tle2.inclination * u.deg
# print("Inclination = {0:.3f}".format(ISSInclination))
StarboardPoleDec0 = -1 * (90.0 * u.deg - ISSInclination)
PortPoleDec0 = -1 * StarboardPoleDec0
#print("Starboard Orbit Pole Declination {0:.2f}".format(StarboardPoleDec0))
# print("Port Orbit Pole Declination {0:.2f}".format(PortPoleDec0))
# Compute ISS precession rate in degrees per day
ISSPrecessionRate = (tle2.right_ascension - tle1.right_ascension) / (
tle2.epoch_day - tle1.epoch_day) * u.deg / u.d
# print("ISS Precession Rate {0:.3f} ({1:.3f} period)".format(ISSPrecessionRate,
# np.abs(360.0*u.deg/ISSPrecessionRate)))
ttle2 = Time("{0:4d}-01-01T00:00:00".format(int(tle2.epoch_year) + 2000),
format='isot',
scale='utc') + tle2.epoch_day * u.d
# print("ttle2 = ",ttle2.isot)
StarboardPoleRA0 = np.fmod(tle2.right_ascension + 90.0, 360.0) * u.deg
PortPoleRA0 = np.fmod(StarboardPoleRA0 + 180.0 * u.deg, 360.0 * u.deg)
# print("Starboard Pole RA @ ttle2 = {0:.3f}".format(StarboardPoleRA0))
# print("Port Pole RA @ ttle2 = {0:.3f}".format(PortPoleRA0))
def StarboardPoleDec(t):
return np.ones_like(t) * StarboardPoleDec0
def PortPoleDec(t):
return np.ones_like(t) * StarboardPoleDec0
def StarboardPoleRA(t):
return np.fmod(
StarboardPoleRA0 + (t - ttle2).to(u.d) * ISSPrecessionRate,
360.0 * u.deg)
def PortPoleRA(t):
return np.fmod(StarboardPoleRA(t) + 180.0 * u.deg, 360.0 * u.deg)
def StarboardPoleCoord(t):
return SkyCoord(StarboardPoleRA(t).value,
StarboardPoleDec(t).value,
unit=u.deg,
frame="icrs")
def PortPoleCoord(t):
return SkyCoord(PortPoleRA(t).value,
PortPoleDec(t).value,
unit=u.deg,
frame="icrs")
now = Time.now()
doy_now = np.float(now.yday.split(':')[1])
# print("Current DOY = {0}".format(np.int(doy_now)))
#print("StarboardPoleRA (now) = {0:.3f}".format(StarboardPoleRA(now)))
#print("PortPoleRA (now) = {0:.3f}".format(PortPoleRA(now)))
if sourcename[0:2] != 'PSR':
SourcePos = get_icrs_coordinates(sourcename)
else:
splitstr = sourcename.split(',')
SourcePos = ICRS(ra=Angle(double(splitstr[0])),
dec=Angle(double(splitstr[1])))
#print("\nSource: {0} at {1}, {2}".format(sourcename,SourcePos.ra, SourcePos.dec))
#print("Separation from Starboard Pole = {0:.3f}".format(SourcePos.separation(StarboardPoleCoord(now))))
#print("Separation from Port Pole = {0:.3f}".format(SourcePos.separation(PortPoleCoord(now))))
#Calculate terms and references to do check
#doy2XXX = np.arange(365.0)
#times = doy2XXX*u.d + startepoch
issseps = SourcePos.separation(StarboardPoleCoord(times)).to(u.deg)
# The Sun and Moon positions are returned in the GCRS frame
# Convert them to ICRS so .separation doesn't go insane when
# comparing different frames with different obstimes.
SunPos = get_sun(times)
SunPos = SkyCoord(SunPos.ra, SunPos.dec, frame='icrs')
MoonPos = get_moon(times)
MoonPos = SkyCoord(MoonPos.ra, MoonPos.dec, frame='icrs')
# Hold indicies when Sun and Moon cause constraint violation
sunseps = SourcePos.separation(SunPos).to(u.deg)
idxsun = sunseps < SunAvoidance
moonseps = SourcePos.separation(MoonPos).to(u.deg)
idxmoon = moonseps < MoonAvoidance
# Hold indicies when sep is outside of 91 to 142 deg due to hardware violation (KWood analysis 10/27/2017)
idxang = ~((issseps > HardwareLowerAvoidance) &
(issseps < HardwareUpperAvoidance))
# Apply all vis constraints
indxall = idxsun | idxmoon | idxang #true when constraint is violated
# Generate and populate signal output
vis = np.ones(len(doy2XXX))
vis[indxall] = float('NaN')
#Return result
return vis
#print()
#after that for the satellite id, return all the tle parameters
#stationName = input("Enter Station Name: ")
satNameUser = input("Enter Station Name: ")
stationList=getStationList(tleFile)
for satelitename in stationList:
if satelitename.rstrip() == satNameUser:
satName = satNameUser
#satNumber = int(stationNumber)
#satName = stationList[satNumber]
try:
stationObject = tlefile.read(satName, tleFile)
except:
print("No satelite name matched, look at the following list and select the satelite number")
print("\n List of satelites for this TLE are : \n")
stationList=getStationList(tleFile)
for i in range(len(stationList)):
print("Station Number",i, "Station Name", stationList[i])
stationNumber = input("\n Enter Station Name: ")
satNumber = int(stationNumber)
satName = stationList[satNumber]
# Print Platform Info
print("\n For the station number entered the TLE information are : \n")
stationObject = tlefile.read(satName, tleFile)
satTLENumber = printTLEInfo(stationObject, satName)
print()
# 12 OCT 2018 #
# #
##############################################
#
# To install PyOrbital on Linux:
# $ sudo apt_get install python_pyorbital
#
from pyorbital import tlefile
from pyorbital.orbital import Orbital
from datetime import datetime
# There are two ways we can track orbital elements using PyOrbital
# First we will use the TLE files created using tle_web_scraper.py
# Dont forget to change the file path to the actual location of the saved TLE files
tle = tlefile.read('NOAA 20 [+]', '/path/to/tle/files/noaa_tle_file.txt')
print tle
# The second method uses current TLEs from the internet, which we do not need to download
orb = Orbital(
"NOAA 20"
) # For additional satellites, subsitute "NOAA 20" with other NOAA satellites (numbered 1 - 20)
now = datetime.utcnow()
# Get normalized position and velocity of the satellite
current_position = orb.get_position(now)
print(current_position)
# Get the longitude, latitude and altitude of the satellite
current_lonlatalt = orb.get_lonlatalt(now)
print(current_lonlatalt)
def tle(self):
# using an archive; select appropriate TLE from file
if self.tle_file:
tle_data = self.read_tle_file(self.tle_file)
dates = self.tle2datetime64(
np.array([float(line[18:32]) for line in tle_data[::2]]))
# set utctime to arbitrary value inside archive if object init
if self.utctime is None:
sdate = dates[-1]
else:
sdate = np.datetime64(
self.utctime) # .timestamp() #self.utcs[0]
# Find index "iindex" such that dates[iindex-1] < sdate <= dates[iindex]
# Notes:
# 1. If sdate < dates[0] then iindex = 0
# 2. If sdate > dates[-1] then iindex = len(dates), beyond the right boundary!
iindex = np.searchsorted(dates, sdate)
if iindex in (0, len(dates)):
if iindex == len(dates):
# Reset index if beyond the right boundary (see note 2. above)
iindex -= 1
elif abs(sdate - dates[iindex - 1]) < abs(sdate - dates[iindex]):
# Choose the closest of the two surrounding dates
iindex -= 1
# Make sure the TLE we found is within the threshold
delta_days = abs(sdate - dates[iindex]) / np.timedelta64(1, 'D')
tle_thresh = 7
if delta_days > tle_thresh:
raise IndexError(
"Can't find tle data for %s within +/- %d days around %s" %
(self.satellite_name, tle_thresh, sdate))
# if delta_days > 3:
# LOG.warning("Found TLE data for %s that is %f days appart",
# sdate, delta_days)
# else:
# LOG.debug("Found TLE data for %s that is %f days appart",
# sdate, delta_days)
# Select TLE data
tle1 = tle_data[iindex * 2]
tle2 = tle_data[iindex * 2 + 1]
self._tle = tlefile.read(self.satellite_name,
tle_file=None,
line1=tle1,
line2=tle2)
# Not using TLE archive;
# Either using current celestrek TLE,
# or using user supplied Line 1 and line 2
else:
sat_time = self.tle2datetime64(float(self._tle.line1[18:32]))
# Object just created
if not self.utctime:
self.utctime = datetime.now()
mismatch = sat_time.astype(datetime) - self.utctime
if abs(mismatch.days) > 7:
raise IndexError("""
Current TLE from celestrek is %d days newer than
requested orbital parameter. Please use TLE archive
for accurate results""" % (mismatch.days))
return self._tle
def get_upcoming_passes(satellite_name, passes_begin_time, passes_period):
"""Returns potential satellite pass information for input satellite and Two Line Elements over temporal period"""
kml = simplekml.Kml()
observer = ephem.Observer()
observer.lat = ground_station[0]
observer.long = ground_station[1]
observer.horizon = observer_horizon
swathincrement = 1
# make a list to hold dicts of attributes for the upcoming pass information for the selected satellites
schedule = []
observer.date = passes_begin_time
print("---------------------------------------")
for tle in tles:
if tle[0] == satellite_name:
# Update satellite names for use in filename
satname = get_satellite_name(tle)
sat = ephem.readtle(tle[0], tle[1], tle[2])
# Report currency of TLE
twole = tlefile.read(tle[0], 'tles.txt')
now = datetime.utcnow()
timesinceepoch = now - twole.epoch.astype(datetime)
print("TLE EPOCH:", twole.epoch.astype(datetime))
print("TLE age:", timesinceepoch)
print("---------------------------------------")
# While lostime of next pass is less than or equal to pass_begin_time + period do something
lostime = start # passes_begin_time + passes_period
while lostime <= (passes_begin_time +
timedelta(minutes=passes_period)):
oi = float(str.split(tle[2], ' ')[3])
orb = Orbital(tle[0], "tles.txt", tle[1], tle[2])
rt, ra, tt, ta, st, sa = observer.next_pass(sat)
# Confirm that observer details have been computed i.e. are not 'Null'
if rt is None:
print(rt + "is none")
logging.info(
"Rise time of satellite not calculated - pass currently under way"
)
observer.date = (lostime + timedelta(minutes=90))
return ()
sat.compute(rt)
aos_lat = sat.sublat.real * (180 / math.pi)
sat.compute(st)
los_lat = sat.sublat.real * (180 / math.pi)
# Determine if pass descending or ascending
oi, node = get_orbit_node(aos_lat, los_lat, oi)
aostime = datetime.strptime(str(rt), "%Y/%m/%d %H:%M:%S")
loctime = local_time(aostime, 'Australia/Sydney')
minutesaway = ((aostime - start).seconds / 60.0) + (
(aostime - start).days * 1440.0)
orad = orb.get_lonlatalt(to_datetime(rt))[2]
orbitnumber = orb.get_orbit_number(
to_datetime(rt)) + orbitoffset
# Get code version for provenance - TODO embed this in HTML
try:
repo = git.Repo(os.getcwd())
tag = repo.tags[
len(repo.tags) -
1].tag.tag # TODO work out if git repo, if not skip TRY
except:
tag = '0.0.0'
print("code tag = ", tag)
print("------------------------------------------")
print("Satellite = ", satname)
print("Orbit = ", orbitnumber)
print("Minutes to horizon = ", minutesaway)
print("AOStime local = ", loctime)
print("AOStime UTC = ", to_datetime(rt))
print("LOStime UTC = ", to_datetime(st))
print("Transit time UTC = ", to_datetime(tt))
SWATH_FILENAME = os.path.join(
output_path, satname + "." + str(orbitnumber) + "." +
ground_station_name + ".orbit_swath.geojson")
ORBIT_FILENAME = os.path.join(
output_path, satname + "." + str(orbitnumber) + "." +
ground_station_name + ".orbit_track.geojson")
# Step from AOS to LOS by configuration timestep interval
deltatime = to_datetime(rt)
geoeastpoint = []
geowestpoint = []
geotrack = []
# TODO - 1/10 steps out to east and west limbs of pass from track
startpoint = True
# TODO - confirm nextpass method works when satellite within horizon
subsatlat1 = None
while deltatime < to_datetime(st):
#if subsatlat1 is None:
# subsatlat1 = sat.sublat.real * (180 / math.pi)
# subsatlon1 = sat.sublong.real * (180 / math.pi)
# print("got to here")
sat.compute(deltatime)
subsatlat = sat.sublat.real * (180 / math.pi)
subsatlon = sat.sublong.real * (180 / math.pi)
orbaltitude = orb.get_lonlatalt(to_datetime(rt))[2] * 1000
geotrack.append({
'lat2': subsatlat,
'lon2': subsatlon,
'alt2': orbaltitude,
'time': str(deltatime)
})
# Original heading calculation
#effectiveheading = get_effective_heading(sat, oi, subsatlat,
# subsatlon, orad, sat._n)
# TODO Alternate simple heading
subsatlat1, subsatlon1 = get_subsat_oneincrement(
sat, deltatime, timestep)
effectiveheading = Geodesic.WGS84.Inverse(
subsatlat1, subsatlon1, subsatlat, subsatlon)['azi1']
eastaz = effectiveheading + 90
westaz = effectiveheading + 270
# 1/10 swath steps out to east and west limbs of pass from track start and end
# <-- 1| 2 --> reverse
# | ................. |
# V . . . V reverse
# . . .
# .................
# <-- 3| 4 -->
# (reverse 3 append to 1) append (append 4 to reversed 2)
incrementtoswath = swathincrement
if startpoint is True:
# Step from sub satellite point to limb of swath with increasing step size
while math.pow(incrementtoswath, 5) < swath:
geoeastpointdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, eastaz,
math.pow(incrementtoswath, 5))
geoeastpointdict['time'] = str(deltatime)
geoeastpoint.append(geoeastpointdict)
geowestpointdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, westaz,
math.pow(incrementtoswath, 5))
geowestpointdict['time'] = str(deltatime)
geowestpoint.append(geowestpointdict)
incrementtoswath = incrementtoswath + 1
startpoint = False
# Trace the eastern limb of the swath
geoeastpointdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, eastaz, swath)
geoeastpointdict['time'] = str(deltatime)
geoeastpoint.append(geoeastpointdict)
# Trace the western limb of the swath
geowestpointdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, westaz, swath)
geowestpointdict['time'] = str(deltatime)
geowestpoint.append(geowestpointdict)
deltatime = deltatime + timestep
time.sleep(0.01)
# When the end of the track is reached
# Step from sub satellite point to limb of swath with increasing step size
geoloseastpoint = []
geoloswestpoint = []
incrementtoswath = swathincrement
while math.pow(incrementtoswath, 5) < swath:
geodesiceastazdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, eastaz,
math.pow(incrementtoswath, 5))
geodesiceastazdict['time'] = str(deltatime)
geoloseastpoint.append(geodesiceastazdict)
geodesicwestazdict = Geodesic.WGS84.Direct(
subsatlat, subsatlon, westaz,
math.pow(incrementtoswath, 5))
geodesicwestazdict['time'] = str(deltatime)
geoloswestpoint.append(geodesicwestazdict)
incrementtoswath = incrementtoswath + 1
# Append reversed geoloswestpoint to geoloseastpoint
reversedwest = []
for x in reversed(geoloswestpoint):
reversedwest.append(x)
for x in geoloseastpoint:
reversedwest.append(x)
for x in reversedwest:
geowestpoint.append(x)
polypoints = []
for x in geowestpoint:
polypoints.append({
'lat2': x['lat2'],
'lon2': x['lon2'],
'time': x['time']
})
for x in reversed(geoeastpoint):
polypoints.append({
'lat2': x['lat2'],
'lon2': x['lon2'],
'time': x['time']
})
if len(polypoints) > 0:
polypoints.append({
'lat2': geowestpoint[0]['lat2'],
'lon2': geowestpoint[0]['lon2'],
'time': geowestpoint[0]['time']
})
# TODO add local solar time for AOSTime Lat Lon
attributes = {
'Satellite name':
satname,
'Sensor code':
sensor,
'Orbit height':
orad,
'Orbit':
orbitnumber,
#'Current time': str(now),
'Minutes to horizon':
minutesaway,
'Local time':
str(loctime),
'AOS time':
str(rt),
'LOS time':
str(st),
'Transit time':
str(tt),
'Node':
node,
'SWATH_FILENAME':
(satname + "." + str(orbitnumber) + "." +
ground_station_name + ".orbit_swath.geojson"),
'Orbit filename':
ORBIT_FILENAME,
'Orbit line':
geotrack,
'Swath filename':
SWATH_FILENAME,
'Swath polygon':
polypoints
}
# Append the attributes to the list of acquisitions for the acquisition period
#print('ATTRIBUTES:', attributes)
#print('SCHEDULE:', schedule)
if not any(d['SWATH_FILENAME'] == attributes['SWATH_FILENAME']
for d in schedule):
#if not attributes in schedule:
# if not any((x['Satellite name'] == satname and x['Orbit'] == orbitnumber) for x in schedule):
if imagingnode == 'both' or imagingnode == attributes[
'Node']:
schedule.append(attributes)
# Create swath footprint ogr output
get_vector_file(attributes, polypoints, 'polygon',
SWATH_FILENAME, 'GeoJSON')
get_vector_file(attributes, geotrack, 'line',
ORBIT_FILENAME, 'GeoJSON')
add_layer_to_map(
SWATH_FILENAME,
satname + "." + str(orbitnumber) + ".swath",
'blue')
add_layer_to_map(
ORBIT_FILENAME,
satname + "." + str(orbitnumber) + ".orbit", 'red')
# Create a temporal KML
pol = kml.newpolygon(name=satname + '_' +
str(orbitnumber),
description=SWATH_FILENAME)
kml_polypoints = []
for i in polypoints:
kml_polypoints.append((i['lon2'], i['lat2']))
rt_kml = datetime.strptime(str(rt),
"%Y/%m/%d %H:%M:%S")
st_kml = datetime.strptime(str(st),
"%Y/%m/%d %H:%M:%S")
pol.outerboundaryis = kml_polypoints
pol.style.linestyle.color = simplekml.Color.green
pol.style.linestyle.width = 5
pol.style.polystyle.color = simplekml.Color.changealphaint(
100, simplekml.Color.green)
pol.timespan.begin = rt_kml.strftime(
"%Y-%m-%dT%H:%M:%SZ")
pol.timespan.end = st_kml.strftime(
"%Y-%m-%dT%H:%M:%SZ")
observer.date = (lostime + timedelta(minutes=90))
lostime = (datetime.strptime(str(observer.date),
"%Y/%m/%d %H:%M:%S"))
kml.save(
os.path.join(output_path,
satname + "." + ground_station_name + ".kml"))
## plot folium map
folium.LayerControl().add_to(satellite_map)
foliumhtml = os.path.join(
output_path, satname + "." + ground_station_name + ".map.html")
satellite_map.save(foliumhtml)
folium_timespan_geojson_html(schedule, satname)
# render the html schedule and write to file
attributeshtml = []
for acquisition in schedule:
attributeshtml.append('<td>' + acquisition['Satellite name'] + '</td>'\
'<td><a href="' + str(os.path.relpath(acquisition['Swath filename'],os.path.dirname(foliumhtml)))+ '">' + str(acquisition['Sensor code']) + '</a></td>'\
'<td><a href="' + str(os.path.relpath(acquisition['Orbit filename'],os.path.dirname(foliumhtml))) + '">' + str(acquisition['Orbit']) + '</a></td>'\
'<td>' + str(acquisition['Node']) + '</td>'\
'<td>' + str(acquisition['AOS time']) + '</td>'\
'<td>' + str(acquisition['LOS time']) + '</td>')
satelliteslist = []
for x in satellites:
schedule_url = get_satellite_name(
[x]) + "." + ground_station_name + ".schedule.html"
satelliteslist.append([x, schedule_url])
satelliteslist.append(',')
renderedoutput = template.render(content=attributeshtml,
foliumhtml=os.path.relpath(
foliumhtml, output_path),
satelliteslist=satelliteslist)
with open(
os.path.join(
output_path,
satname + "." + ground_station_name + ".schedule.html"),
"w") as fh:
fh.write(renderedoutput)
return ()
def createSatFromFile(self, sat_name, file_name, category):
newSat = Sat(sat_name,
tle=tlefile.read(sat_name, file_name),
cat=category)
newSat.updateOrbitalParameters3(self.date)
self.Sats.append(newSat)
def setUp(self):
# Load test data
inputs = np.dsplit(testdata_night, 14)
self.ir108 = inputs[0]
self.ir039 = inputs[1]
self.vis008 = inputs[2]
self.nir016 = inputs[3]
self.vis006 = inputs[4]
self.ir087 = inputs[5]
self.ir120 = inputs[6]
self.elev = inputs[7]
self.cot = inputs[8]
self.reff = inputs[9]
self.lwp = inputs[10]
self.lat = inputs[11]
self.lon = inputs[12]
self.cth = inputs[13]
self.time = datetime(2013, 11, 12, 6, 00, 00)
# METEOSAT-10 (MSG-3) TLE file from 01.08.2017
# http://celestrak.com/NORAD/elements/weather.txt
line1 = "1 38552U 12035B 17212.14216600 -.00000019 00000-0 00000-0 0 9998"
line2 = "2 38552 0.8450 357.8180 0002245 136.4998 225.6885 1.00275354 18379"
# Import TLE file
self.tle = tlefile.read('meteosat 10', line1=line1, line2=line2)
self.orbital = Orbital('meteosat 10',
line1=self.tle.line1,
line2=self.tle.line2)
# Compute satellite zenith angle
azi, ele = self.orbital.get_observer_look(self.time, self.lon,
self.lat, self.elev)
self.sza = ele
self.input = {
'ir108': self.ir108,
'ir039': self.ir039,
'lat': self.lat,
'lon': self.lon,
'time': self.time,
'plot': True,
'save': True,
'dir': '/tmp/FLS',
'resize': '5',
'sza': self.sza
}
inputs = np.dsplit(testdata_night2, 14)
self.ir108 = inputs[0]
self.ir039 = inputs[1]
self.vis008 = inputs[2]
self.nir016 = inputs[3]
self.vis006 = inputs[4]
self.ir087 = inputs[5]
self.ir120 = inputs[6]
self.elev = inputs[7]
self.cot = inputs[8]
self.reff = inputs[9]
self.lwp = inputs[10]
self.lat = inputs[11]
self.lon = inputs[12]
self.cth = inputs[13]
self.time = datetime(2013, 12, 1, 4, 00, 00)
self.input2 = {
'ir108': self.ir108,
'ir039': self.ir039,
'lat': self.lat,
'lon': self.lon,
'time': self.time,
'plot': True,
'save': True,
'dir': '/tmp/FLS',
'resize': '5',
'sza': self.sza
}
