asteroid: (66652)Borasisi
         satellites: Pabu  
       total number: 7
               type: position
              dates: 2003-2008
        observatory: 250 - Hubble Space Telescope  
W.M. Grundy, K.S. Noll, F. Nimmoc, H.G. Roe, M.W. Buie, 
S.B. Porter, S.D. Benecchi, D.C. Stephens, H.F. Levison, 
J.A. Stansberry
Five new and three improved mutual orbits of transneptunian binaries.
Icarus. 2011. V. 213. P. 678692.   

        relative to: the primary
    reference frame: astrometric ICRF
    centre of frame: topocentric
   epoch of equinox: J2000
         time scale: UTC
          reduction: no information
        coordinates: X, Y (secondary relative to primary)
   diff. refraction: no information 
             Ntel 1 - WFPC2
             Ntel 2 - NICMOS
             Ntel 3 - ACS

 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, h
 5. Number of telescope, Ntel
 6. r - the distance from the Sun to the target, au 
 7. R - the distance from the observer to the target, au
 8. g - the phase angle - the solar phase angle, degrees
 9. X - relative right ascension, arcsec
10. SigX - the error of X (1sigma uncertainties), arcsec
11. Y - relative declination, arcsec 
12. SigY - the error of Y (1sigma uncertainties), arcsec
13. Vprim - visual magnitude for primary body, -99.9 if value is not given
14. sigVp - estimated uncertainties of Vprim, 0.0 if value is not given
15. Vsec - visual magnitude for secondary body, -99.9 if value is not given
16. SigVs - estimated  uncertainties of Vsec, 0.0  if value is not given

Year   Day    h    Ntel  r       R       g         X      SigX       Y       SigY     Vprim  SigVp   Vsec   SigVs                 
  Month                 AU      AU      deg    arcsec   arcsec    arcsec    arcsec    magn          magn