Contents.
      planet: 9 - Pluto
  satellites: 1 - P1 Charon : 24
total number: 24
        type: relative
       dates: 1965-1979
 observatory: 689 - U.S. Naval Observatory, Flagstaff
              711 - McDonald Observatory, Fort Davis
              807 - Cerro Tololo Observatory, La Serena
              301 - Mont Megantic

Reference.
   Harrington, R. S.; Christy, J. W. (1980). 
   The satellite of Pluto. II.
   Astronomical Journal, vol. 85, Feb. 1980, p. 168-170.
   1980AJ_____85__168H

Informations.
         relative to: planet
     reference frame: astrometric
     centre of frame: topocentre
    epoch of equinox: 1950.0
          time scale: UT
           reduction: no information
         coordinates: apparent distance, position angle
    diff. refraction: no information
            receptor: photographic; electographic plate (observation made on July 8th, 1978)
           telescope: 689 - 1.55-m reflector
                      711 - 2.1-m reflector
                      807 - 4.0-m reflector
                      301 - 1.6-m reflector
           observers: 689 - R. S. Harrington, J. W. Christy
                      711 - J. D. Mulholland
                      807 - J. Graham
                      301 - R. Racine

 data included in standard data file: no

Comments.

Format.
  1. Year of the date of observation
  2. Month of the date of observation
  3. Day of the date of observation with decimals
  4. S (separation) in arcsecs (-99.99 if not given)
  5. P (position angle) in degrees (999 if not given)
  6. Observatory (Obs: 1 - USNO, 2 - McDonald, 3 - Cerro Tololo, 4 - Mont Megantic)

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Year    Day     S       P  Obs
  Month       arcsec   deg
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