def slew(self):
slewFunction = None
target = None
currentPage = self.module.view.slewOptions.get_current_page()
if currentPage == 0:
raHour = self.module.view.raHourSpin.get_value()
raMinute = self.module.view.raMinuteSpin.get_value()
raSec = self.module.view.raSecSpin.get_value()
decDegree = self.module.view.decDegreeSpin.get_value()
decMinute = self.module.view.decMinuteSpin.get_value()
decSec = self.module.view.decSecSpin.get_value()
ra = "%2d:%2d:%2d" %(raHour, raMinute, raSec)
dec = "%2d:%2d:%2d" %(decDegree, decMinute, decSec)
epochStr = str(self.module.view.epochCombo.child.get_text()).lower()
if epochStr == "j2000":
epoch = Epoch.J2000
elif epochStr == "b1950":
epoch = Epoch.B1950
elif epochStr == "now":
epoch = Epoch.Now
else:
# FIXME
epoch = epochStr
target = Position.fromRaDec(ra, dec, epoch=epoch)
slewFunction = self.telescope.slewToRaDec
elif currentPage == 1:
altDegree = self.module.view.altDegreeSpin.get_value()
altMinute = self.module.view.altMinuteSpin.get_value()
altSec = self.module.view.altSecSpin.get_value()
azDegree = self.module.view.azDegreeSpin.get_value()
azMinute = self.module.view.azMinuteSpin.get_value()
azSec = self.module.view.azSecSpin.get_value()
alt = "%2d:%2d:%2d" %(altDegree, altMinute, altSec)
az = "%2d:%2d:%2d" %(azDegree, azMinute, azSec)
target = Position.fromAltAz(alt, az)
slewFunction = self.telescope.slewToAltAz
elif currentPage == 2:
target = str(self.module.view.objectNameCombo.child.get_text())
slewFunction = self.telescope.slewToObject
self.module.view.slewBeginUi()
try:
slewFunction(target)
except ObjectNotFoundException, e:
self.module.view.showError("Object %s was not found on our catalogs." % target)
def syncWithTel(self):
self.syncBegin()
self.log.debug('[sync] Check if dome is in sync with telescope')
if self.getMode() == Mode.Track:
self.log.warning('Dome is in track mode... Slew is completely controled by AsTelOS...'
'Waiting for dome to reach expected position')
start_time = time.time()
tpl = self.getTPL()
ref_altitude = Coord.fromD(0.)
target_az = Coord.fromD(tpl.getobject('POSITION.INSTRUMENTAL.DOME[0].TARGETPOS'))
target_position = Position.fromAltAz(ref_altitude,
target_az)
while True:
current_az = self.getAz()
current_position = Position.fromAltAz(ref_altitude,
current_az)
self.log.debug('Current az: %s | Target az: %s' % (current_az.toDMS(), target_az.toDMS()))
if time.time() > (start_time + self._maxSlewTime):
if abs(target_position.angsep(current_position).D) < tpl.getobject(
'POINTING.SETUP.DOME.MAX_DEVIATION') * 4.0:
self.log.warning("[sync] Dome too far from target position!")
break
else:
self.syncComplete()
raise AstelcoDomeException("Dome synchronization timed-out")
elif abs(target_position.angsep(current_position).D) < tpl.getobject(
'POINTING.SETUP.DOME.MAX_DEVIATION') * 2.0:
break
self.syncComplete()
self.log.debug('[sync] Dome in sync')
def worldAt(self, *pixel):
if not self._findWCS():
return Position.fromRaDec(0, 0)
world = self._valueAt(self._wcs.wcs_pix2world, *pixel)
return Position.fromRaDec(Coord.fromD(world[0]), Coord.fromD(world[1]))
def _moveScope(self, tracking=False, pierSide=None):
"""
Moves the scope, usually to zenith
"""
tel = self._getTel()
site = self._getSite()
self.log.debug('Moving scope to alt %s az %s.' % (self["flat_alt"], self["flat_az"]))
if tel.getPositionAltAz().angsep(
Position.fromAltAz(Coord.fromD(self["flat_alt"]), Coord.fromD(self["flat_az"]))).D < self[
"flat_position_max"]:
self.log.debug(
'Telescope is less than {} degrees from flat position. Not moving!'.format(self["flat_position_max"]))
if tracking and not tel.isTracking():
tel.startTracking()
elif not tracking and tel.isTracking():
tel.stopTracking()
if pierSide is not None and tel.features(TelescopePier):
self.log.debug("Setting telescope pier side to %s." % tel.getPierSide().__str__().lower())
tel.setSideOfPier(self['pier_side'])
return
try:
self.log.debug("Skyflat Slewing scope to alt {} az {}".format(self["flat_alt"], self["flat_az"]))
tel.slewToRaDec(Position.altAzToRaDec(Position.fromAltAz(Coord.fromD(self["flat_alt"]),
Coord.fromD(self["flat_az"])),
site['latitude'], site.LST()))
if tracking:
self._startTracking()
else:
self._stopTracking()
except:
self.log.debug("Error moving the telescope")
def worldAt(self, *pixel):
if not self._findWCS():
return Position.fromRaDec(0, 0)
world = self._valueAt(self._wcs.wcs_pix2world, *pixel)
return Position.fromRaDec(Coord.fromD(world[0]), Coord.fromD(world[1]))
def test_distances(self):
p1 = Position.fromRaDec("10:00:00", "0:0:0")
p2 = Position.fromRaDec("12:00:00", "0:0:0")
d = p1.angsep(p2)
assert p1.within(p2, Coord.fromD(29.99)) == False
assert p1.within(p2, Coord.fromD(30.01)) == True
def test_distances(self):
p1 = Position.fromRaDec("10:00:00", "0:0:0")
p2 = Position.fromRaDec("12:00:00", "0:0:0")
d = p1.angsep(p2)
assert p1.within(p2, Coord.fromD(29.99)) == False
assert p1.within(p2, Coord.fromD(30.01)) == True
def computeExtinctionWithLST(self,flux, lstArr): altArr = [] aTuple = self.ra, self.dec raDec = Position(aTuple) for lst in lstArr: #this returns the altitude and azimuth altAz = raDec.raDecToAltAz(raDec, self.latitude, lst) #Get the altitude altArr.append(altAz.alt) print flux print altArr return self.computeExtinctionCoefficient(flux, altArr)
def test_altAzRaDec(self):
altAz = Position.fromAltAz('20:30:40', '222:11:00')
lat = Coord.fromD(0)
o = ephem.Observer()
o.lat = '0:0:0'
o.long = '0:0:0'
o.date = dt.now(tz.tzutc())
lst = float(o.sidereal_time())
raDec = Position.altAzToRaDec(altAz, lat, lst)
altAz2 = Position.raDecToAltAz(raDec, lat, lst)
assert equal(altAz.alt.toR(),altAz2.alt.toR()) & equal(altAz.az.toR(),altAz2.az.toR())
def test_altAzRaDec(self):
altAz = Position.fromAltAz('20:30:40', '222:11:00')
lat = Coord.fromD(0)
o = ephem.Observer()
o.lat = '0:0:0'
o.long = '0:0:0'
o.date = dt.now(tz.tzutc())
lst = float(o.sidereal_time())
raDec = Position.altAzToRaDec(altAz, lat, lst)
altAz2 = Position.raDecToAltAz(raDec, lat, lst)
assert equal(altAz.alt.toR(),altAz2.alt.toR()) & equal(altAz.az.toR(),altAz2.az.toR())
def park(self):
if self.isParked():
return True
# 1. slew to park position FIXME: allow different park
# positions and conversions from ra/dec -> az/alt
site = self.getManager().getProxy("/Site/0")
self.slewToRaDec(
Position.fromRaDec(str(self.getLocalSiderealTime()),
site["latitude"]))
# 2. stop tracking
self.stopTracking()
# 3. power off
#self.powerOff ()
self._parked = True
self.parkComplete()
return True
def slewToAltAz(self, position):
if not isinstance(position, Position):
position = Position.fromAltAz(*position)
self.slewBegin(self._getSite().altAzToRaDec(position))
alt_steps = position.alt - self.getAlt()
alt_steps = float(alt_steps/10.0)
az_steps = position.az - self.getAz()
az_steps = float(az_steps/10.0)
self._slewing = True
self._abort.clear()
status = TelescopeStatus.OK
t = 0
while t < 5:
if self._abort.isSet():
self._slewing = False
status = TelescopeStatus.ABORTED
break
self._alt += alt_steps
self._az += az_steps
self._setRaDecFromAltAz()
time.sleep(0.5)
t += 0.5
self._slewing = False
self.slewComplete(self.getPositionRaDec(), status)
def slewToAltAz(self, position):
if not isinstance(position, Position):
position = Position.fromAltAz(*position)
self.slewBegin(self._getSite().altAzToRaDec(position))
alt_steps = position.alt - self.getAlt()
alt_steps = float(alt_steps / 10.0)
az_steps = position.az - self.getAz()
az_steps = float(az_steps / 10.0)
self._slewing = True
self._abort.clear()
status = TelescopeStatus.OK
t = 0
while t < 5:
if self._abort.isSet():
self._slewing = False
status = TelescopeStatus.ABORTED
break
self._alt += alt_steps
self._az += az_steps
self._setRaDecFromAltAz()
time.sleep(0.5)
t += 0.5
self._slewing = False
self.slewComplete(self.getPositionRaDec(), status)
def test_slew_abort(self):
site = self.manager.getProxy("/Site/0")
# go to know position
self.tel.slewToRaDec(Position.fromRaDec(site.LST(), site["latitude"]))
last = self.tel.getPositionRaDec()
# clear event checkings
FiredEvents = {}
# drift it
dest = Position.fromRaDec(last.ra + Coord.fromH(1),
last.dec + Coord.fromD(10))
real_dest = None
@callback(self.manager)
def slewBeginClbk(target):
global real_dest
real_dest = target
@callback(self.manager)
def slewCompleteClbk(position, status):
assert last.ra < position.ra < real_dest.ra
assert last.dec < position.dec < real_dest.dec
self.tel.slewBegin += slewBeginClbk
self.tel.slewComplete += slewCompleteClbk
# async slew
def slew():
tel = self.manager.getProxy(self.TELESCOPE)
tel.slewToRaDec(dest)
pool = ThreadPool()
pool.queueTask(slew)
# wait thread to be scheduled
time.sleep(2)
# abort and test
self.tel.abortSlew()
pool.joinAll()
# event checkings
self.assertEvents(TelescopeStatus.ABORTED)
def test_changeEpoch(self):
sirius_j2000 = Position.fromRaDec("06 45 08.9173", "-16 42 58.017")
sirius_now = sirius_j2000.toEpoch(epoch=Epoch.NOW)
print
print sirius_j2000
print sirius_now
def getTargetAltAz(self):
drv = self.getDriver()
ret = drv.getTargetAltAz()
if not isinstance(ret, Position):
ret = Position.fromAltAz(*ret)
return ret
def test_changeEpoch(self):
sirius_j2000 = Position.fromRaDec("06 45 08.9173", "-16 42 58.017")
sirius_now = sirius_j2000.toEpoch(epoch=Epoch.NOW)
print()
print(sirius_j2000)
print(sirius_now)
def test_slew_abort (self):
site = self.manager.getProxy("/Site/0")
# go to know position
self.tel.slewToRaDec(Position.fromRaDec(site.LST(), site["latitude"]))
last = self.tel.getPositionRaDec()
# clear event checkings
FiredEvents = {}
# drift it
dest = Position.fromRaDec(last.ra+Coord.fromH(1), last.dec+Coord.fromD(10))
real_dest = None
@callback(self.manager)
def slewBeginClbk(target):
global real_dest
real_dest = target
@callback(self.manager)
def slewCompleteClbk(position, status):
assert last.ra < position.ra < real_dest.ra
assert last.dec < position.dec < real_dest.dec
self.tel.slewBegin += slewBeginClbk
self.tel.slewComplete += slewCompleteClbk
# async slew
def slew():
tel = self.manager.getProxy(self.TELESCOPE)
tel.slewToRaDec(dest)
pool = ThreadPool()
pool.queueTask(slew)
# wait thread to be scheduled
time.sleep(2)
# abort and test
self.tel.abortSlew()
pool.joinAll()
# event checkings
self.assertEvents(TelescopeStatus.ABORTED)
def slewToAltAz(self, position):
site = self._getSite()
if self.slewToRaDec(
Position.altAzToRaDec(position, site['latitude'],
site.LST()).toEpoch(Epoch.NOW)):
self.stopTracking()
return True
return False
def test_precession(self):
sirius_j2000 = Position.fromRaDec("06 45 08.9173", "-16 42 58.017")
sirius_now = sirius_j2000.precess()
print
print sirius_j2000
print sirius_now
def slewToRaDec(self, position):
# FIXME: validate limits?
if not isinstance(position, Position):
position = Position.fromRaDec(*position)
drv = self.getDriver()
drv.slewToRaDec(position)
def getTargetRaDec(self):
drv = self.getDriver()
ret = drv.getTargetRaDec()
if not isinstance(ret, Position):
ret = Position.fromRaDec(*ret)
return ret
def _validateRaDec(self, position):
site = self.getManager().getProxy("/Site/0")
lst = site.LST()
latitude = site["latitude"]
altAz = Position.raDecToAltAz(position, latitude, lst)
return self._validateAltAz(altAz)
class TelescopePark(Telescope):
"""Telescope with park/unpark support.
"""
__config__ = {"default_park_position": Position.fromAltAz(90, 180)}
def park(self):
"""Park the telescope on the actual saved park position
(L{setParkPosition}) or on the default position if none
setted.
When parked, the telescope will not track objects and may be
turned off (if the scope was able to).
@return: Nothing.
@rtype: None
"""
def unpark(self):
"""Wake up the telescope of the last park operation.
@return: Nothing.
@rtype: None
"""
def isParked(self):
"""Ask if the telescope is at park position.
@return: True if the telescope is parked, False otherwise.
@rtype: bool
"""
def setParkPosition(self, position):
"""Defines where the scope will park when asked to.
@param position: local coordinates to park the scope
@type position: L{Position}
@return: Nothing.
@rtype: None
"""
def getParkPosition(self):
"""Get the Current park position.
@return: Current park position.
@rtype: L{Position}
"""
@event
def parkComplete(self):
"""Indicates that the scope has parked successfuly.
"""
@event
def unparkComplete(self):
"""Indicates that the scope has unparked (waked up)
def checkPointing(self):
"""
This method *chooses* a field to verify the telescope pointing.
Then it does the pointing and verifies it.
If unsuccesfull e-mail the operator for help
isto em portugues eh chamado calagem
Choice is based on some catalog (Landolt here)
We choose the field closest to zenith
"""
# find where the zenith is
site = self.getManager().getProxy("/Site/0")
lst = site.LST()
lat = site["latitude"]
coords = Position.fromRaDec(lst, lat)
self.log.info(
"Check pointing - Zenith coordinates: %f %f" % (lst, lat))
tel = self.getTel()
# use the Vizier catalogs to see what Landolt field is closest to
# zenith
self.log.debug("Calling landolt")
fld = Landolt()
fld.useTarget(coords, radius=45)
obj = fld.find(limit=self["max_fields"])
print "Objects returned from Landolt", obj
# get ra, dec to call pointVerify
ra = obj[self.currentField]["RA"]
dec = obj[self.currentField]["DEC"]
name = obj[self.currentField]["ID"]
print "Current object ", ra, dec, name
self.log.info("Chose %s %f %f" % (name, ra, dec))
tel.slewToRaDec(Position.fromRaDec(ra, dec))
try:
self.pointVerify()
except Exception, e:
printException(e)
raise CantSetScopeException(
"Can't set scope on field %s %f %f we are in trouble, call for help" %
(name, ra, dec))
def _moveScope(self):
"""
Moves the scope, usually to zenith
"""
tel = self._getTel()
try:
self.log.debug("Skyflat Slewing scope to zenith")
tel.slewToAltAz(Position.fromAltAz(90, 270))
except:
self.log.debug("Error moving the telescope")
def __init__(self, buffer):
# discard time
buffer.recv(8)
self.ra = struct.unpack("<1I", buffer.recv(4))[0]
self.ra *= (math.pi / 0x80000000)
self.ra = Coord.fromR(self.ra).toHMS()
self.dec = struct.unpack("<1i", buffer.recv(4))[0]
self.dec *= (math.pi / 0x80000000)
self.dec = Coord.fromR(self.dec).toDMS()
self.position = Position.fromRaDec(self.ra, self.dec)
def checkPointing(self):
"""
This method *chooses* a field to verify the telescope pointing.
Then it does the pointing and verifies it.
If unsuccesfull e-mail the operator for help
isto em portugues eh chamado calagem
Choice is based on some catalog (Landolt here)
We choose the field closest to zenith
"""
# find where the zenith is
site = self.getManager().getProxy("/Site/0")
lst = site.LST()
lat = site["latitude"]
coords = Position.fromRaDec(lst, lat)
self.log.info("Check pointing - Zenith coordinates: %f %f" %
(lst, lat))
tel = self.getTel()
# use the Vizier catalogs to see what Landolt field is closest to zenith
self.log.debug("Calling landolt")
fld = Landolt()
fld.useTarget(coords, radius=45)
obj = fld.find(limit=self["max_fields"])
print "Objects returned from Landolt", obj
# get ra, dec to call pointVerify
ra = obj[self.currentField]["RA"]
dec = obj[self.currentField]["DEC"]
name = obj[self.currentField]["ID"]
print "Current object ", ra, dec, name
self.log.info("Chose %s %f %f" % (name, ra, dec))
tel.slewToRaDec(Position.fromRaDec(ra, dec))
try:
self.pointVerify()
except Exception, e:
printException(e)
raise CantSetScopeException(
"Can't set scope on field %s %f %f we are in trouble, call for help"
% (name, ra, dec))
def _validateRaDec(self, position):
site = self.getManager().getProxy("/Site/0")
lst = site.LST()
latitude = site["latitude"]
altAz = Position.raDecToAltAz(position,
latitude,
lst)
return self._validateAltAz(altAz)
def __main__(self):
tel = self.getManager().getProxy("/Telescope/0")
cam = self.getManager().getProxy("/Camera/0")
dome = self.getManager().getProxy("/Dome/0")
autofocus = self.getManager().getProxy("/Autofocus/0")
verify = self.getManager().getProxy("/PointVerify/0")
landolt = Landolt()
landolt.useTarget(Position.fromRaDec("00:38:00", "-22:00:00"),
radius=45)
landolt.constrainColumns({"Vmag": "<11"})
landolts = landolt.find(limit=3)
for landolt in landolts:
pos = Position.fromRaDec(landolt["RA"], landolt["DEC"])
self.log.info("Slewing to %s" % pos)
tel.slewToRaDec(pos)
while (tel.isSlewing() or not dome.isSyncWithTel()):
self.log.info("Waiting dome...")
self.log.info("Doing autofocus on %s" % pos)
fit = autofocus.focus(target=Target.CURRENT,
mode=Mode.FIT,
exptime=20,
start=0,
end=7000,
step=1000)
self.log.info("Verifyng pointing...")
verify.pointVerify()
cam.expose(exp_time=120,
shutter="OPEN",
frames=1,
filename="extincao-%s" %
landolt["ID"].replace(" ", "_"))
def slewToAltAz(self, position):
# FIXME: validate limits?
if not isinstance(position, Position):
position = Position.fromAltAz(*position)
drv = self.getDriver()
try:
drv.slewToAltAz(position)
except Exception, e:
self.log.exception("Apollo 13 is out of control!")
def moveSouth(self, offset, rate=SlewRate.MAX):
self._slewing = True
pos = self.getPositionRaDec()
pos = Position.fromRaDec(pos.ra, pos.dec + Coord.fromAS(-offset))
self.slewBegin(pos)
self._dec += Coord.fromAS(-offset)
self._setAltAzFromRaDec()
self._slewing = False
self.slewComplete(self.getPositionRaDec(), TelescopeStatus.OK)
def moveSouth(self, offset, rate=SlewRate.MAX):
self._slewing = True
pos = self.getPositionRaDec()
pos = Position.fromRaDec(pos.ra, pos.dec + Coord.fromAS(-offset))
self.slewBegin(pos)
self._dec += Coord.fromAS(-offset)
self._setAltAzFromRaDec()
self._slewing = False
self.slewComplete(self.getPositionRaDec(), TelescopeStatus.OK)
def test_find(self):
landolt = Landolt()
landolt.useTarget(Position.fromRaDec("14:00:00", "-22:00:00"),
radius=45)
landolt.constrainColumns({"Vmag": "<10"})
data = landolt.find(limit=5)
for obj in data:
for k, v in obj.items():
print k, v
def chimera_handler(self, payload, root):
t0 = time.time()
# Check if it is a real GRB
ra, dec = float(
root.find(
"./WhereWhen/ObsDataLocation/ObservationLocation/AstroCoords/Position2D/Value2/C1"
).text
), float(
root.find(
"./WhereWhen/ObsDataLocation/ObservationLocation/AstroCoords/Position2D/Value2/C2"
).text)
packet_type = int(
root.find("./What/Param[@name='Packet_Type']").attrib['value'])
site = self.getSite()
ephem_site = site.getEphemSite(site.ut())
grb = ephem.FixedBody()
grb._ra, grb._dec = ra, dec
grb.compute(ephem_site)
# Conditions to pull the observation trigger
# TODO: implement min_moon_distance -> Position(coord.fromD(grb.alt), coord.fromD(grb.az)) - site.moonpos()
# In[8]: a = Position.fromAltAz(Coord.fromD(10), Coord.fromD(10))
#
# In[9]: b = Position.fromAltAz(Coord.fromD(10), Coord.fromD(20))
#
# In[11]: a.angsep(b).D
# Out[11]: 10.0
moondist = Position.fromAltAz(Coord.fromD(float(grb.alt)),
Coord.fromD(float(grb.az))).angsep(
site.moonpos())
if moondist > self['obs-min_moondist']:
self.log.debug("Moon is OK! Moon distance = %.2f deg" % moondist)
else:
self.log.debug("Moon is NOT OK! Moon distance = %.2f deg" %
moondist)
# TODO: check if Test_Notice != True (for INTEGRAL)
if grb.alt >= self['obs-min_alt'] and packet_type in range(
1000): # self['obs-packets']:
gal_coord = ephem.Galactic(grb)
ebv = get_SFD_dust([gal_coord.long], [gal_coord.lat],
dustmap=self.dust_file,
interpolate=False)
if ebv < self['obs-ebv_max']:
self.log.debug('Total analysis time: %6.3f secs' %
(time.time() - t0))
self.trigger_observation(ra, dec)
else:
self.log.debug(
"Reject alert type %i. ALT = %.2f, RA = %.2f DEC = %.2f. Config: %d, %s"
% (packet_type, grb.alt, ra, dec, self['obs-min_alt'],
str(self['obs-packets'])))
def test_find (self):
x = VizQuery()
x.useCat("II/183A/")
x.useColumns("*POS_EQ_RA_MAIN,*POS_EQ_DEC_MAIN,*ID_MAIN,Vmag,_r",
sortBy="*POS_EQ_RA_MAIN")
x.useTarget(Position.fromRaDec("14:00:00","-22:00:00"),radius=45)
data = x.find(limit=5)
for obj in data:
for k,v in obj.items():
print k, v
print
def test_find (self):
landolt = Landolt()
landolt.useTarget(Position.fromRaDec("14:00:00","-22:00:00"),radius=45)
landolt.constrainColumns({"Vmag":"<10"})
data = landolt.find(limit=5)
for obj in data:
for k,v in obj.items():
assert k
assert v
print k, v
def test_slew_to_ra_dec (self):
m = self.m
print
self.printCoord (header=True)
ra = m.getRa()
m.slewToRaDec (Position.fromRaDec(ra, "-70:00:00"))
#m.slewToRaDec (Position.fromRaDec("13h25m38.903s", "-11:12:24.928"))
self.printCoord()
def test_find(self):
x = VizQuery()
x.useCat("II/183A/")
x.useColumns("*POS_EQ_RA_MAIN,*POS_EQ_DEC_MAIN,*ID_MAIN,Vmag,_r",
sortBy="*POS_EQ_RA_MAIN")
x.useTarget(Position.fromRaDec("14:00:00", "-22:00:00"), radius=45)
data = x.find(limit=5)
for obj in data:
for k, v in list(obj.items()):
print(k, v)
print()
def _parseSesame(xml):
try:
sesame = ET.fromstring(xml.replace("&", "&"))
target = sesame.findall("Target")
if target:
for resolver in target[0].findall("Resolver"):
jpos = resolver.find("jpos")
if jpos is None:
continue
return Position.fromRaDec(*jpos.text.split())
except ExpatError, e:
return False
def _parseSesame (xml):
try:
sesame = ET.fromstring(xml.replace("&", "&"))
target = sesame.findall("Target")
if target:
for resolver in target[0].findall("Resolver"):
jpos = resolver.find("jpos")
if jpos is None:
continue
return Position.fromRaDec(*jpos.text.split())
except ExpatError, e:
return False
def slewToRaDec(self, position):
if not isinstance(position, Position):
position = Position.fromRaDec(position[0], position[1], epoch=Epoch.J2000)
self._validateRaDec(position)
self.slewBegin(position)
# Change position epoch to J2000.
# Most of the Telescopes must have this precession calculation, otherwise pointing to positions of epochs
# different of J2000 will point the telescope to a wrong position.
# This should be done after self.slewBegin()
if position.epoch != Epoch.J2000:
position = position.toEpoch(Epoch.J2000)
ra_steps = position.ra - self.getRa()
ra_steps = float(ra_steps / 10.0)
dec_steps = position.dec - self.getDec()
dec_steps = float(dec_steps / 10.0)
self._slewing = True
self._abort.clear()
status = TelescopeStatus.OK
t = 0
while t < 5:
if self._abort.isSet():
self._slewing = False
status = TelescopeStatus.ABORTED
break
self._ra += ra_steps
self._dec += dec_steps
self._setAltAzFromRaDec()
time.sleep(0.5)
t += 0.5
self._slewing = False
self.startTracking()
self.slewComplete(self.getPositionRaDec(), status)
def test_park(self):
# FIXME: make a real test.
raise SkipTest()
def printPosition():
print self.tel.getPositionRaDec(), self.tel.getPositionAltAz()
sys.stdout.flush()
print
ra = self.tel.getRa()
dec = self.tel.getDec()
print "current position:", self.tel.getPositionRaDec()
print "moving to:", (ra - "01 00 00"), (dec - "01 00 00")
self.tel.slewToRaDec(
Position.fromRaDec(ra - Coord.fromH(1), dec - Coord.fromD(1)))
for i in range(10):
printPosition()
time.sleep(0.5)
print "parking..."
sys.stdout.flush()
self.tel.park()
t0 = time.time()
wait = 30
for i in range(10):
printPosition()
time.sleep(0.5)
while time.time() < t0 + wait:
print "\rwaiting ... ",
sys.stdout.flush()
time.sleep(1)
print "unparking..."
sys.stdout.flush()
self.tel.unpark()
for i in range(10):
printPosition()
time.sleep(0.5)
def __str__(self):
raDec = Position.fromRaDec(self.targetRa, self.targetDec, 'J2000')
if self.observed:
msg = "#[id: %5d] [name: %15s %s (ah: %.2f)] [type: %s] #LastObverved@: %s"
return msg % (self.id, self.name, raDec, self.targetAH, self.type,
self.lastObservation)
else:
msg = "#[id: %5d] [name: %15s %s (ah: %.2f)] [type: %s] #NeverObserved"
return msg % (
self.id,
self.name,
raDec,
self.targetAH,
self.type,
)
def test_park (self):
# FIXME: make a real test.
raise SkipTest()
def printPosition():
print self.tel.getPositionRaDec(), self.tel.getPositionAltAz()
sys.stdout.flush()
print
ra = self.tel.getRa()
dec = self.tel.getDec()
print "current position:", self.tel.getPositionRaDec()
print "moving to:", (ra-"01 00 00"), (dec-"01 00 00")
self.tel.slewToRaDec(Position.fromRaDec(ra-Coord.fromH(1), dec-Coord.fromD(1)))
for i in range(10):
printPosition()
time.sleep(0.5)
print "parking..."
sys.stdout.flush()
self.tel.park()
t0 = time.time()
wait = 30
for i in range(10):
printPosition()
time.sleep(0.5)
while time.time() < t0+wait:
print "\rwaiting ... ",
sys.stdout.flush()
time.sleep(1)
print "unparking..."
sys.stdout.flush()
self.tel.unpark()
for i in range(10):
printPosition()
time.sleep(0.5)
def __main__(self):
tel = self._getTel()
tel.slewComplete += self.getProxy()._updateSlewPosition
tel.abortComplete += self.getProxy()._updateSlewPosition
self._updateSlewPosition(tel.getPositionRaDec())
# From man(7) fifo: The FIFO must be opened on both ends
#(reading and writing) before data can be passed. Normally,
#opening the FIFO blocks until the other end is opened also
# force non-blocking open
fd = os.open(self._in_fifo, os.O_RDONLY | os.O_NONBLOCK)
in_fifo = os.fdopen(fd, "r")
while not self._loop_abort.isSet():
ret = select([in_fifo], [], [], 0)
# timeout
if not any(ret):
time.sleep(1)
continue
try:
edb = in_fifo.readline()
# writer not connected (XEphem closed)
if not edb:
time.sleep(1)
continue
edb = edb.split(",")
ra = edb[2].split("|")[0].strip()
dec = edb[3].split("|")[0].strip()
target = Position.fromRaDec(ra, dec)
self.log.info("XEphem FIFO changed: slewing to %s" % target)
self._getTel().slewToRaDec(target)
except (ValueError, IndexError):
self.log.exception("Cannot convert XEphem EDB to Position.")
continue
except:
self.log.exception("Something wrong...")
def _watchTrackingStopped(self, position, status):
self.setFlag("telescope",InstrumentOperationFlag.READY)
self.broadCast('Telescope tracking stopped with status %s.' % status)
if status == TelescopeStatus.OBJECT_TOO_LOW:
# Todo: Make this an action on the checklist database, so user can configure what to do
robobs = self.getRobObs()
sched = self.getSched()
robobs.stop()
sched.stop()
tel = self.getTel()
from chimera.util.position import Position
from chimera.util.coord import Coord
park_position = Position.fromAltAz(Coord.fromD(80),Coord.fromD(89))
tel.slewToAltAz(park_position)
robobs.reset_scheduler()
robobs.start()
robobs.wake()
def __main__(self):
tel = self._getTel()
tel.slewComplete += self.getProxy()._updateSlewPosition
self._updateSlewPosition(tel.getPositionRaDec(), None)
# From man(7) fifo: The FIFO must be opened on both ends
#(reading and writing) before data can be passed. Normally,
# opening the FIFO blocks until the other end is opened also
# force non-blocking open
fd = os.open(self._in_fifo, os.O_RDONLY | os.O_NONBLOCK)
in_fifo = os.fdopen(fd, "r")
while not self._loop_abort.isSet():
ret = select([in_fifo], [], [], 0)
# timeout
if not any(ret):
time.sleep(1)
continue
try:
edb = in_fifo.readline()
# writer not connected (XEphem closed)
if not edb:
time.sleep(1)
continue
edb = edb.split(",")
ra = edb[2].split("|")[0].strip()
dec = edb[3].split("|")[0].strip()
target = Position.fromRaDec(ra, dec)
self.log.info("XEphem FIFO changed: slewing to %s" % target)
self._getTel().slewToRaDec(target)
except (ValueError, IndexError):
self.log.exception("Cannot convert XEphem EDB to Position.")
continue
except:
self.log.exception("Something wrong...")
def slewToRaDec(self, position):
if not isinstance(position, Position):
position = Position.fromRaDec(position[0],
position[1],
epoch=Epoch.J2000)
self._validateRaDec(position)
self.slewBegin(position)
ra_steps = position.ra - self.getRa()
ra_steps = float(ra_steps / 10.0)
dec_steps = position.dec - self.getDec()
dec_steps = float(dec_steps / 10.0)
self._slewing = True
self._epoch = position.epoch
self._abort.clear()
status = TelescopeStatus.OK
t = 0
while t < 5:
if self._abort.isSet():
self._slewing = False
status = TelescopeStatus.ABORTED
break
self._ra += ra_steps
self._dec += dec_steps
self._setAltAzFromRaDec()
time.sleep(0.5)
t += 0.5
self._slewing = False
self.startTracking()
self.slewComplete(self.getPositionRaDec(), status)
def slewToRaDec(self, position):
if not isinstance(position, Position):
position = Position.fromRaDec(position[0], position[1], epoch=Epoch.J2000)
self._validateRaDec(position)
self.slewBegin(position)
ra_steps = position.ra - self.getRa()
ra_steps = float(ra_steps / 10.0)
dec_steps = position.dec - self.getDec()
dec_steps = float(dec_steps / 10.0)
self._slewing = True
self._epoch = position.epoch
self._abort.clear()
status = TelescopeStatus.OK
t = 0
while t < 5:
if self._abort.isSet():
self._slewing = False
status = TelescopeStatus.ABORTED
break
self._ra += ra_steps
self._dec += dec_steps
self._setAltAzFromRaDec()
time.sleep(0.5)
t += 0.5
self._slewing = False
self.startTracking()
self.slewComplete(self.getPositionRaDec(), status)
def test_stress_dome_track (self):
dome = self.manager.getProxy(self.DOME)
tel = self.manager.getProxy(self.TELESCOPE)
dome.track()
for i in range(10):
FiredEvents = {}
self.setupEvents()
ra = "%d %d 00" % (random.randint(7,15), random.randint(0,59))
dec = "%d %d 00" % (random.randint(-90,0), random.randint(0,59))
tel.slewToRaDec(Position.fromRaDec(ra, dec))
dome.syncWithTel()
assertDomeAz(dome.getAz(), tel.getAz(), dome["az_resolution"])
self.assertEvents(sync=True)
time.sleep(random.randint(0,10))
def test_sync (self):
# get current position, drift the scope, and sync on the first
# position (like done when aligning the telescope).
real = self.tel.getPositionRaDec()
@callback(self.manager)
def syncCompleteClbk(position):
assert position.ra == real.ra
assert position.dec == real.dec
self.tel.syncComplete += syncCompleteClbk
# drift to "real" object coordinate
drift = Position.fromRaDec(real.ra+Coord.fromH(1), real.dec+Coord.fromD(1))
self.tel.slewToRaDec(drift)
self.tel.syncRaDec(real)
time.sleep(2)
def test_sync (self):
# get current position, drift the scope, and sync on the first
# position (like done when aligning the telescope).
real = self.tel.getPositionRaDec()
@callback(self.manager)
def syncCompleteClbk(position):
assert position.ra == real.ra
assert position.dec == real.dec
self.tel.syncComplete += syncCompleteClbk
# drift to "real" object coordinate
drift = Position.fromRaDec(real.ra+Coord.fromH(1), real.dec+Coord.fromD(1))
self.tel.slewToRaDec(drift)
self.tel.syncRaDec(real)
time.sleep(2)
def telegram_set_target(self, bot, update, args, job_queue, chat_data):
if len(args) != 2:
update.message.reply_text(
"Usage: /set HH:MM:SS.S DD:MM:SS.S or /set ra dec (J2000)")
else:
self.last_update = datetime.datetime.now()
ra = Coord.fromHMS(args[0]) if ":" in args[0] else Coord.fromD(
float(args[0]))
dec = Coord.fromDMS(args[1]) if ":" in args[1] else Coord.fromD(
float(args[1]))
self.target = Position.fromRaDec(ra, dec)
site = self.getSite()
lst = site.LST_inRads()
alt = float(site.raDecToAltAz(self.target, lst).alt)
# TODO: reject if alt< telescope_min_alt!
moonPos = site.moonpos()
moonRaDec = site.altAzToRaDec(moonPos, lst)
moonDist = self.target.angsep(moonRaDec)
update.message.reply_text(
'Hello {} arg is {} {}. Object alt = {}, Moon dist = {}'.
format(update.message.from_user.first_name, args[0], args[1],
alt, moonDist))
def _moveScope(self, pierSide=None):
"""
Moves the scope, usually to zenith
"""
tel = self._getTel()
if pierSide is not None and tel.features(TelescopePier):
self.log.debug("Setting telescope pier side to %s." % tel.getPierSide().__str__().lower())
tel.setSideOfPier(self['pier_side'])
else:
self.log.warning("Telescope does not support pier side.")
try:
self.log.debug("Slewing scope to alt {} az {}".format(self["flat_alt"], self["flat_az"]))
tel.slewToAltAz(Position.fromAltAz(Coord.fromD(self["flat_alt"]),
Coord.fromD(self["flat_az"])))
if tel.isTracking():
tel.stopTracking()
except:
self.log.debug("Error moving the telescope")
def pointVerify (self):
""" Checks telescope pointing
Checks the pointing.
If abs ( telescope coordinates - image coordinates ) > tolerance
move the scope
take a new image
test again
do this while ntrials < max_trials
Returns True if centering was succesful
False if not
"""
# take an image and read its coordinates off the header
image = None
try:
image = self._takeImage()
print "image name %s", image.filename()
except:
self.log.error( "Can't take image" )
raise
ra_img_center = image["CRVAL1"] # expects to see this in image
dec_img_center= image["CRVAL2"]
currentImageCenter = Position.fromRaDec(Coord.fromD(ra_img_center),
Coord.fromD(dec_img_center))
tel = self.getTel()
# analyze the previous image using
# AstrometryNet defined in util
try:
wcs_name = AstrometryNet.solveField(image.filename(),findstarmethod="sex")
except NoSolutionAstrometryNetException, e:
raise e
def test_slew (self):
site = self.manager.getProxy("/Site/0")
dest = Position.fromRaDec(site.LST(), site["latitude"])
real_dest = None
@callback(self.manager)
def slewBeginClbk(target):
global real_dest
real_dest = target
@callback(self.manager)
def slewCompleteClbk(position, status):
assertEpsEqual(position.ra, real_dest.ra, 60)
assertEpsEqual(position.dec, real_dest.dec, 60)
self.tel.slewBegin += slewBeginClbk
self.tel.slewComplete += slewCompleteClbk
self.tel.slewToRaDec(dest)
# event checkings
self.assertEvents(TelescopeStatus.OK)
def park (self):
if self.isParked ():
return True
# 1. slew to park position FIXME: allow different park
# positions and conversions from ra/dec -> az/alt
site = self.getManager().getProxy("/Site/0")
self.slewToRaDec(Position.fromRaDec(str(self.getLocalSiderealTime()),
site["latitude"]))
# 2. stop tracking
self.stopTracking ()
# 3. power off
#self.powerOff ()
self._parked = True
self.parkComplete()
return True
def slewToAz(self, az):
# Astelco Dome will only enable slew if it is not tracking
# If told to slew I will check if the dome is syncronized with
# with the telescope. If it is not it¡ will wait until it gets
# in sync or timeout...
if self.getMode() == Mode.Track:
raise AstelcoDomeException('Dome is in track mode... Slew is completely controled by AsTelOS...')
# self.log.warning('Dome is in track mode... Slew is completely controled by AsTelOS...')
# self.slewBegin(az)
#
# start_time = time.time()
# self._abort.clear()
# self._slewing = True
# caz = self.getAz()
#
# while self.isSlewing():
# # time.sleep(1.0)
# if time.time() > (start_time + self._maxSlewTime):
# self.log.warning('Dome syncronization timed-out...')
# self.slewComplete(self.getAz(), DomeStatus.TIMEOUT)
# return 0
# elif self._abort.isSet():
# self._slewing = False
# self.slewComplete(self.getAz(), DomeStatus.ABORTED)
# return 0
# elif abs(caz - self.getAz()) < 1e-6:
# self._slewing = False
# self.slewComplete(self.getAz(), DomeStatus.OK)
# return 0
# else:
# caz = self.getAz()
#
# self.slewComplete(self.getAz(), DomeStatus.OK)
else:
self.log.info('Slewing to %f...' % az)
start_time = time.time()
self._abort.clear()
self._slewing = True
current_az = self.getAz()
tpl = self.getTPL()
self.slewBegin(az)
cmdid = tpl.set('POSITION.INSTRUMENTAL.DOME[0].TARGETPOS', '%f' % az)
reference_alt = Coord.fromD(0.)
desired_position = Position.fromAltAz(reference_alt,
az)
# Wait for command to be completed
cmd = tpl.getCmd(cmdid)
while not cmd.complete:
if time.time() > (start_time + self._maxSlewTime):
self.log.warning('Dome syncronization timed-out...')
self.slewComplete(self.getAz(), DomeStatus.ABORTED)
return 0
cmd = tpl.getCmd(cmdid)
# time.sleep(self['stabilization_time'])
# Wait dome arrive on desired position
while True:
current_position = Position.fromAltAz(reference_alt,
current_az)
if time.time() > (start_time + self._maxSlewTime):
self.slewComplete(self.getAz(), DomeStatus.ABORTED)
raise AstelcoDomeException('Dome syncronization timed-out...')
elif self._abort.isSet():
self._slewing = False
tpl.set('POSITION.INSTRUMENTAL.DOME[0].TARGETPOS', current_az)
self.slewComplete(self.getAz(), DomeStatus.ABORTED)
return 0
elif abs(current_position.angsep(desired_position)) < tpl.getobject(
'POINTING.SETUP.DOME.MAX_DEVIATION') * 2.0:
self._slewing = False
self.slewComplete(self.getAz(), DomeStatus.OK)
return 0
else:
current_az = self.getAz()
self.slewComplete(self.getAz(), DomeStatus.OK)
def getPositionAltAz(self):
self._telescope.GetAzAlt()
return Position.fromAltAz(Coord.fromD(self._telescope.dAlt), Coord.fromD(self._telescope.dAz))
