Contents.
             asteroid: (120347)Salacia  
           satellites: Actaea    
         total number: 10
                 type: position
                dates: 2006-2010
          observatory: 250 - Hubble Space Telescope  
                       568 - Mauna Kea   (W.M. Keck observatory, Hawaii, USA) 

Reference.
J.A. Stansberry, W.M. Grundy, M. Mueller, S.D. Benecchi, G.H. Rieke, 
K.S. Noll, M.W. Buie, H.F. Levison, S.B. Porter, H.G. Roe.
Physical properties of trans-neptunian binaries (120347) Salacia–Actaea
and (42355) Typhon–Echidna.
Icarus. 2012. V. 219. P. 676–688.
2012Icar..219..676S

Informations.
          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 
            telescope: 
                   Ntel 1 - Hubble ACS/HRC 
                   Ntel 2 - Hubble WFPC2/PC
                   Ntel 3 - Keck NIRC2      

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, h
 5. Number of telescope, Ntel
 6. r (au)
 7. R (au)
 8. g (deg)
 9. X (arcsec)
10. SigX (arcsec)
11. Y (arcsec)
12. SigY (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
17. Nobs- code of observatory 

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