asteroid: (275809)2001 QY297
      satellites: companion             
    total number: 6
            type: position
           dates: 2006-2008
     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: asrtometric ICRF
 centre of frame: the primary
epoch of equinox: J2000
      time scale: UTC
       reduction: no information
     coordinates: X, Y (secondary relative to primary)
     diff. refraction: no information (see in publications)
           1. ACS
           2. WFPC2
 1. Year of the moment of observation  
 2. Month of the moment of observation 
 3. Day of the moment of observation 
 4. h - hour of the moment of observation
 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, arcsec
11. Y - relative declination, arcsec 
12. SigY - the error of Y, arcsec
13. Vprim - visual magnitude for primary bodies
14. sigVp - estimated uncertainties of Vprim
15. Vsec - visual magnitude for secondary bodies 
16. SigVs - estimated  uncertainties of Vsec

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  magn   magn