API VERSION: 1.2
API SOURCE: NASA/JPL Horizons API

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 Revised: Dec 09, 2024            GALEX Space Telescope                 -127783
                        http://www.galex.caltech.edu/index.html
 
 NOTE: GALEX was decommissioned September 30, 2011 and is no longer active.
 
 BACKGROUND:
   Launched: April 28, 2003 8 a.m. (EDT) [Pegasus rocket]
 
   The GALEX mission is a partnership between the California Institute of
   Technology (Caltech) and NASA's Jet Propulsion Laboratory (JPL) with
   universities, science institutes, laboratories, and commercial technology
   providers from around the world. Caltech hosts the GALEX science center
   and has overall responsibility for the project.  JPL constructed the
   GALEX science instrument, performed calibration, and is responsible for
   project management. Leading the GALEX project is the principal investigator,
   professor Chris Martin, of Caltech.
 
 GALEX SPACE TELESCOPE:
   Galaxy Evolution Explorer: Earth orbiting space telescope observing galaxies
   in ultraviolet wavelengths to investigate the causes and evolution of star
   formation over the history of the universe.
 
   With an original 29-month mission complete, mission was extended in 2006.
 
 PHYSICAL DATA:
   Length      : 2 m (6.5 feet)
   Weight      : 280 kg (617 lbs)
 
   Width (solar panels unfurled): 2.8 m (9   ft)
   Width (launch configuration) : 1.1 m (3.7 ft)
 
   Battery lifetime (projected): 12 years
   Orbit stability             : 25 years (post-launch)
 
 DATA RELEASE:
   http://galex.stsci.edu/GR4/
 
 SPACECRAFT TRAJECTORY:
   The trajectory here is a concatenation of publicly released JSpOC two-line
   elements. These can usually only be propagated reliably "days" into the
   future, so have to be updated fairly frequently to maintain accuracy.
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Ephemeris / API_USER Mon Dec  9 17:46:23 2024 Pasadena, USA      / Horizons    
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Target body name: GALEX (spacecraft) (-127783)    {source: galex}
Center body name: Earth (399)                     {source: DE441}
Center-site name: Swan Reach Imaging, Glenalta
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Start time      : A.D. 2024-Nov-30 00:00:00.0000 UT      
Stop  time      : A.D. 2024-Dec-01 00:00:00.0000 UT      
Step-size       : 10 minutes
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Target pole/equ : undefined
Target radii    : undefined                                                    
Center geodetic : 139.5701, -34.5440227, .056888  {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 139.5701,5259.32258,-3596.34777 {E-lon(deg),Dxy(km),Dz(km)}
Center pole/equ : ITRF93                          {East-longitude positive}
Center radii    : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c}       
Target primary  : Earth
Vis. interferer : MOON (R_eq= 1737.400) km        {source: DE441}
Rel. light bend : Sun                             {source: DE441}
Rel. lght bnd GM: 1.3271E+11 km^3/s^2                                          
Atmos refraction: NO (AIRLESS)
RA format       : HMS
Time format     : CAL 
Calendar mode   : Mixed Julian/Gregorian
RTS-only print  : NO       
EOP file        : eop.241209.p250307                                           
EOP coverage    : DATA-BASED 1962-JAN-20 TO 2024-DEC-09. PREDICTS-> 2025-MAR-06
Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s 
Table cut-offs 1: Elevation (  0.0deg=YES),Airmass (>38.000=NO), Daylight (YES)
Table cut-offs 2: Solar elongation ( 12.0,180.0=YES),Local Hour Angle( 0.0=NO )
Table cut-offs 3: RA/DEC angular rate (     0.0=NO )                           
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$$SOE
No ephemeris meets criteria. Check table cut-off values shown above for:
 
  elevation angle
  airmass
  daylight only
  solar elongation
  local hour angle
  RA/DEC angular rate

$$EOE
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