Content 

               asteroid: (225088)2007 OR10
             satellites: companion
           total number: 8
                   type: position
                  dates: 2009-2010
            observatory: 250 - Hubble Space Telescope  

Reference.
Kiss, Csaba; Marton, Gabor; Farkas-Takacs, Aniko; Stansberry, John; Muller, Thomas; Vinko, Jozsef; Balog, Zoltan; Ortiz, Jose-Luis; Pal, Andras
Discovery of a Satellite of the Large Trans-Neptunian Object (225088)2007 OR10
The Astrophysical Journal Letters 2017 V.838L
2017ApJ...838L...1K

Informations.
            relative to: the primary
        reference frame: astrometric ICRF
        centre of frame: topocentric
       epoch of equinox: J2000
             time scale: UTC
              reduction: no information 
            coordinates: Delta L, Delta B (ecliptic relative to primary)
       diff. refraction: no information 
               receptor: 
              telescope: near-infrared filters of the WFC3/UVIS and IR cameras

Comments.
   2007 OR10 was observed at two epochs, on November 6, 2009 
   and on September 18, 2010 

Format.
 1. JD - Julian Day
 2. Delta L - relative ecliptic longitude, arcsec
 3. Sig X - the error of Delta L, arcsec
 4. Delta B - relative ecliptic latitude, arcsec 
 5. Sig Y - the error of Delta B, arcsec 
  
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    JD          Delta L  Sig X   Delta B  Sig Y
                 arcsec  arcsec   arcsec  arcsec
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