def azza_to_radec(az, za, MJD, fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'):
"""
azza_to_radec(az, za, MJD):
Return RA and DEC (J2000 in deg) from AZ and ZA (in deg) at MJD. Keyword params
are fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'.
"""
scope, x, lon, lat, hgt = s.sla_obs(0, scope)
microns = 3e8/(fctr*1e6)*1e6
app_rarad, app_decrad = s.sla_oap('a',az*DEGTORAD,za*DEGTORAD,MJD,
0.0,-lon,lat,hgt,0.0,0.0,temp,atm,humid,microns,0.0065)
ra2000, dec2000 = s.sla_amp(app_rarad, app_decrad, MJD, 2000.0)
return ra2000*RADTODEG, dec2000*RADTODEG
def radec_to_azza(ra, dec, MJD, fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'):
"""
redec_to_azza(ra, dec, MJD):
Return AZ and ZA (in deg) from RA and DEC (J2000 in deg) at MJD. Keyword params
are fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'.
"""
scope, x, lon, lat, hgt = s.sla_obs(0, scope)
microns = 3e8/(fctr*1e6)*1e6
app_rarad, app_decrad = s.sla_map(ra*DEGTORAD,dec*DEGTORAD,0.0,0.0,0.0,0.0,2000.0,MJD)
az, za, hob, rob, dob = s.sla_aop(app_rarad,app_decrad,MJD,
0.0,-lon,lat,hgt,0.0,0.0,temp,atm,humid,microns,0.0065)
az = s.sla_dranrm(az)
return az*RADTODEG, za*RADTODEG
def azza_to_radec(az,
za,
MJD,
fctr=350.0,
atm=1010.0,
temp=283.0,
humid=0.5,
scope='GBT'):
"""
azza_to_radec(az, za, MJD):
Return RA and DEC (J2000 in deg) from AZ and ZA (in deg) at MJD. Keyword params
are fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'.
"""
scope, x, lon, lat, hgt = s.sla_obs(0, scope)
microns = 3e8 / (fctr * 1e6) * 1e6
app_rarad, app_decrad = s.sla_oap('a', az * DEGTORAD, za * DEGTORAD, MJD,
0.0, -lon, lat, hgt, 0.0, 0.0, temp, atm,
humid, microns, 0.0065)
ra2000, dec2000 = s.sla_amp(app_rarad, app_decrad, MJD, 2000.0)
return ra2000 * RADTODEG, dec2000 * RADTODEG
def radec_to_azza(ra,
dec,
MJD,
fctr=350.0,
atm=1010.0,
temp=283.0,
humid=0.5,
scope='GBT'):
"""
redec_to_azza(ra, dec, MJD):
Return AZ and ZA (in deg) from RA and DEC (J2000 in deg) at MJD. Keyword params
are fctr=350.0, atm=1010.0, temp=283.0, humid=0.5, scope='GBT'.
"""
scope, x, lon, lat, hgt = s.sla_obs(0, scope)
microns = 3e8 / (fctr * 1e6) * 1e6
app_rarad, app_decrad = s.sla_map(ra * DEGTORAD, dec * DEGTORAD, 0.0, 0.0,
0.0, 0.0, 2000.0, MJD)
az, za, hob, rob, dob = s.sla_aop(app_rarad, app_decrad, MJD, 0.0, -lon,
lat, hgt, 0.0, 0.0, temp, atm, humid,
microns, 0.0065)
az = s.sla_dranrm(az)
return az * RADTODEG, za * RADTODEG
def get_sitepos(site_code, dbg=False):
'''Returns site name, geodetic longitude (East +ve), latitude (both in radians)
and altitude (meters) for passed sitecode. This can be either a SLALIB site
name or a MPC sitecode (FTN, FTS and SQA currently defined).
Be *REALLY* careful over longitude sign conventions...'''
site_code = site_code.upper()
if site_code == 'F65' or site_code == 'FTN':
# MPC code for FTN. Positions from JPL HORIZONS, longitude converted from 203d 44' 32.6" East
# 156d 15' 27.4" W
(site_lat, status) = S.sla_daf2r(20, 42, 25.5)
(site_long, status) = S.sla_daf2r(156, 15, 27.4)
site_long = -site_long
site_hgt = 3055.0
site_name = 'Haleakala-Faulkes Telescope North (FTN)'
elif site_code == 'E10' or site_code == 'FTS':
# MPC code for FTS. Positions from JPL HORIZONS ( 149d04'13.0''E, 31d16'23.4''S, 1111.8 m )
(site_lat, status) = (S.sla_daf2r(31, 16, 23.4))
site_lat = -site_lat
(site_long, status) = S.sla_daf2r(149, 04, 13.0)
site_hgt = 1111.8
site_name = 'Siding Spring-Faulkes Telescope South (FTS)'
elif site_code == 'SQA' or site_code == 'G51':
(site_lat, status) = S.sla_daf2r(34, 41, 29.23)
(site_long, status) = S.sla_daf2r(120, 02, 32.0)
site_long = -site_long
site_hgt = 328.0
site_name = 'Sedgwick Observatory (SQA)'
elif site_code == 'ELP' or site_code == '711' or site_code == 'V37':
(site_lat, status) = S.sla_daf2r(30, 40, 47.53)
(site_long, status) = S.sla_daf2r(104, 00, 54.63)
site_long = -site_long
site_hgt = 2010.0
site_name = 'LCOGT Node at McDonald Observatory (ELP)'
elif site_code == 'BPL' or site_code == '500':
(site_lat, status) = S.sla_daf2r(34, 25, 57)
(site_long, status) = S.sla_daf2r(119, 51, 46)
site_long = -site_long
site_hgt = 7.0
site_name = 'LCOGT Back Parking Lot Node (BPL)'
elif site_code == 'LSC-DOMA-1M0A' or site_code == 'W85':
# Latitude, longitude from Eric Mamajek (astro-ph: 1210.1616) Table 6. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(30, 10, 2.58)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(70, 48, 17.24)
site_long = -site_long # West of Greenwich !
site_hgt = 2201.0
site_name = 'LCOGT LSC Node 1m0 Dome A at Cerro Tololo'
elif site_code == 'LSC-DOMB-1M0A' or site_code == 'W86':
# Latitude, longitude from Eric Mamajek (astro-ph: 1210.1616) Table 6. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(30, 10, 2.39)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(70, 48, 16.78)
site_long = -site_long # West of Greenwich !
site_hgt = 2201.0
site_name = 'LCOGT LSC Node 1m0 Dome B at Cerro Tololo'
elif site_code == 'LSC-DOMC-1M0A' or site_code == 'W87':
# Latitude, longitude from Eric Mamajek (astro-ph: 1210.1616) Table 6. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(30, 10, 2.81)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(70, 48, 16.85)
site_long = -site_long # West of Greenwich !
site_hgt = 2201.0
site_name = 'LCOGT LSC Node 1m0 Dome C at Cerro Tololo'
elif site_code == 'LSC-AQWA-0M4A' or site_code == 'W85':
# Latitude, longitude from somewhere
(site_lat, status) = S.sla_daf2r(30, 10, 3.79)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(70, 48, 16.88)
site_long = -site_long # West of Greenwich !
site_hgt = 2202.5
site_name = 'LCOGT LSC Node 0m4a Aqawan A at Cerro Tololo'
elif site_code == 'CPT-DOMA-1M0A' or site_code == 'K91':
# Latitude, longitude from site GPS co-ords plus offsets from site plan. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(32, 22, 50.0)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(20, 48, 36.65)
site_hgt = 1807.0
site_name = 'LCOGT CPT Node 1m0 Dome A at Sutherland'
elif site_code == 'CPT-DOMB-1M0A' or site_code == 'K92':
# Latitude, longitude from site GPS co-ords plus offsets from site plan. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(32, 22, 50.0)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(20, 48, 36.13)
site_hgt = 1807.0
site_name = 'LCOGT CPT Node 1m0 Dome B at Sutherland'
elif site_code == 'CPT-DOMC-1M0A' or site_code == 'K93':
# Latitude, longitude from site GPS co-ords plus offsets from site plan. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(32, 22, 50.38)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(20, 48, 36.39)
site_hgt = 1807.0
site_name = 'LCOGT CPT Node 1m0 Dome C at Sutherland'
elif site_code == 'COJ-DOMA-1M0A' or site_code == 'Q63':
# Latitude, longitude from Google Earth guesswork. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(31, 16, 22.56)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(149, 04, 14.33)
site_hgt = 1168.0
site_name = 'LCOGT COJ Node 1m0 Dome A at Siding Spring'
elif site_code == 'COJ-DOMB-1M0A' or site_code == 'Q64':
# Latitude, longitude from Google Earth guesswork. Height
# corrected by +3m for telescope height from Vince.
(site_lat, status) = S.sla_daf2r(31, 16, 22.89)
site_lat = -site_lat # Southern hemisphere !
(site_long, status) = S.sla_daf2r(149, 04, 14.75)
site_hgt = 1168.0
site_name = 'LCOGT COJ Node 1m0 Dome B at Siding Spring'
else:
# Obtain latitude, longitude of the observing site.
# Reverse longitude to get the more normal East-positive convention
(site_num, site_name, site_long, site_lat, site_hgt) = S.sla_obs(0, site_code)
site_name = site_name.rstrip()
site_long = -site_long
logger.debug("Site name, lat/long/height=%s %f %f %.1f" % (site_name, site_long, site_lat, site_hgt))
return (site_name, site_long, site_lat, site_hgt)