Contents.
      planet: 8 - Neptune
  satellites: N1-Triton  : 28
total number: 28
        type: relative
       dates: 1975-1977
 observatory: 689 - U.S. Naval Observatory, Flagstaff

Reference.
   Walker R. L., Christy J. W., Harrington R. S. (1978)
   Positions of planets and natural satellites
   Astronomical Journal. V. 83. N. 7. P. 838-844.
   1978AJ_____83__838W

Informations.
         relative to: planet
     reference frame: astrometric
     centre of frame: topocentre
    epoch of equinox: Date
          time scale: UTC
           reduction: Catalog SAO
         coordinates: X, Y
    diff. refraction: excluded
            receptor: photographic
           telescope: Reflector, D=155 cm
           observers: Walker R. L.,Christy J. W., Harrington R. S.
 data included in standard data file: no

Comments.
                      no information

Format.
  1. Year  of the moment of observation
  2. Month of the moment of observation
  3. Day   of the moment of observation with decimals
  4. X, arcsec
  5. Y, arcsec

---------------------------------
 Year                 X       Y     
   month day       arcsec  arcsec
---------------------------------