Content 
          asteroid: (90482) Orcus
        satellites: Vanth
      total number: 12
              type: position 
             dates: 2005-2015
       observatory: 250 - HST
                    309 - Cerro Paranal
                    568 - Mauna Kea

Reference.
   Grundy W. M., Noll K. S., Roe H. G., Buie M. W., Porter S. B.,
   Parker A. H., Nesvorny D., Levison H. F, Benecchi S. D.,
   Stephens D. C., Trujillo C. A.
   Mutual orbit orientations of transneptunian binaries.
   Icarus. 2019. V. 334. P. 62–78. 
   2019Icar..334...62G

Informations.
       relative to: the primary
   reference frame: astrometric
   centre of frame: topocentric
  epoch of equinox: J2000
        time scale: UTC 
         reduction: no information 
       coordinates: X, Y
  diff. refraction: no information 
          receptor: HST, VLT
         telescope: HST, VLT
Comments.

Format.
 1. Year of the moment of observation  
 2. Month of the moment of observation 
 3. Day of the moment of observation  
 4. Hour of the moment of observation with decimals  
 5. X, arcsec
 6. error in X, arcsec
 7. Y, arcsec
 8. error in Y, arcsec
 9. Observatory code (Obs code)

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Year   Day              X      err X        Y      err Y  Obs
  Month     hour      arcsec   arcsec     arcsec   arcsec code
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