planet: 4 - Mars
  satellites: M1 - Phobos: 424,
              M2 - Deimos: 450
total number: 874
        type: absolute
       dates: 1971-1997
 observatory: 786 - U.S. Naval Obs., Washington (since 1893)

   Arlot J.E., Cooper N., Emelyanov N., Lainey V., et al. (2016)
   Natural satellites astrometric data from either space probes 
   and ground-based observatories produced by the European 
   consortium "ESPaCE".
   Notes scientifiques et techniques
   de l'institut de mecanique celeste. S105.

         relative to: absolute
     reference frame: astrometric
     centre of frame: geocenter
    epoch of equinox: J2000
          time scale: UTC
           reduction: UCAC4
         coordinates: absolute
    diff. refraction: no information
            receptor: photographic
           telescope: USNO 26-inch telescope
           observers: D. Pascu
 data included in standard data file: yes

                    no information


  1. The moment of observation, JD, UTC
  2. Number of satellite (N sat): 1 - Phobos, 2 - Deimos
  3. Right ascension (degrees)
  4. Declination (degrees)
Moment           N   alpha        delta
  JD            sat   deg          deg