def setUp(self):
self.db = sources.MemoryTLESource()
def update_passing_sats(dt=1):
# Where am I?
g = geocoder.ip('me')
lat, lon = g.latlng
me = locations.Location('me', lat, lon, 0)
# Get the current time.
now = datetime.utcnow()
# Get tomorrow, as the limit on when to check
tomorrow = now + timedelta(days=dt)
print('I want to find satellites that pass overhead between:\n', now, '\n',
tomorrow)
# Get a database of satellites.
fetch(TLE_URLS)
created_files = glob.glob("TLE_data/*")
print("TLE files:\n{}".format(created_files))
# Now read that data into my TLE database
database = sources.MemoryTLESource()
# Also track all my satellite IDs
sat_IDs = []
print("Parsing TLE data...")
for fname in created_files:
with open(fname, 'r') as f:
while True:
name = f.readline().strip()
if name == '':
break
sat_IDs.append(name)
tle_1 = f.readline().strip()
tle_2 = f.readline().strip()
tle = (tle_1, tle_2)
database.add_tle(name, tle, now)
print("Done!")
print(
"Checking all satellites to see which transit overhead in the next 24 hours..."
)
alt_lim = abs(90 - OVERHEAD_LIMIT) # Degrees
passes = []
will_pass = []
for ID in sat_IDs:
try:
predictor = predictors.TLEPredictor(ID, database)
pred = predictor.get_next_pass(location=me,
when_utc=now,
aos_at_dg=alt_lim,
limit_date=tomorrow)
print("The object {} will pass over {} deg at:\n--> {}\n".format(
ID, alt_lim, pred))
will_pass.append(ID)
passes.append(pred)
except AssertionError as e:
pass
# print(e)
except exceptions.NotReachable as e:
pass
# print(e)
except exceptions.PropagationError as e:
pass
# print(e)
# print(will_pass)
print(
"\n\nFound {} satellites that will pass through the top {} degrees above lat, lon: {}, {} within the next {} day(s)\n\n\n"
.format(len(will_pass), 90 - alt_lim, lat, lon, dt))
with open('passing_sats.txt', 'w') as f:
to_write = '\n'.join(will_pass)
f.write(to_write)
for ID, pred in zip(will_pass, passes):
print("{}\n\n".format(pred))
return database