Contents.
      planet: 8 - Neptune
  satellites: N1-Triton
total number: 34
        type: absolute
       dates: 2006
 observatory: 327 - Peking Observatory, Xinglong Station

Reference
     Yu Y., Cheng X., Qiao R. C., Yan D., Luo H., and Tang K.. (2019)
     Re-reduction of CCD astrometric observations of Neptunian satellites in 2006-2007 based on Gaia DR2 and comparison with ephemerides.
     Planetary and Space Science. Vol. 165. P. 205-209.
     2019P&SS__165__205Y

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: 2.16-m reflector
           observers: measurers: Yu Y., Cheng X., Qiao R. C., Yan D., Luo. H, 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    Day with   alpha           delta
  Month  decimals  h  m  s      deg  '  ''  
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