Contents.
      planet: 8 - Neptune
  satellites: N1-Triton 
total number: 1135
        type: absolute
       dates: 2013-2019
 observatory: 286 - Yunnan Observatory

Reference
     Yan D., Qiao R. C., Zhang H. Y., Yu Y., and Tang K.
     Astrometric Observations and Analysis of Triton during 2013-2019.
     Icarus, Volume 372, article id. 114728.
     
Informations.
         relative to: absolute
     reference frame: astrometric
     centre of frame: topocentre
    epoch of equinox: J2000
          time scale: UTC
           reduction: Gaia DR2
         coordinates: absolute
    diff. refraction: no information
            receptor: CCD
           telescope: 1-m reflectors
           observers: measurers: Yan D., Qiao R. C., Zhang H. Y., Yu Y., and Tang K.

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. Hour   of right ascension (alpha, h)
  5. Minute of right ascension (alpha, m)
  6. Second of right ascension (alpha, s) with decimals
  7. Degree of declination (delta, deg)
  8. Minute of declination (delta, '  )
  9. Second of declination (delta, '' ) with decimals

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Year Month Day      alpha         delta
                     h  m  s      deg  ' '' 
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