Content 
            asteroid: 2000 QL_251
          satellites: companion
        total number: 1
                type: position
               dates: 2006-2006
         observatory: 250 - Hubble Space Telescope  

Reference.
Noll, K. S.; Stephens, D. C.; Grundy, W. M.; Levison, H. F.
2000 QL_251
IAUC 8746, 2006
2006IAUC.8746....1N

Informations.
         relative to: the primary
     reference frame: astrometric ICRF
     centre of frame: topocentric
    epoch of equinox: J2000
          time scale: UTC
           reduction: no information 
         coordinates: s, p (separation, position angle)
    diff. refraction: no information 
            receptor: 
           telescope: High Resolution Camera of the Advanced Camera

Comments. The observations were made during 2006 July 25.433-25.459 UT   
          We used the average time from this interval

Format.
 1. Year of the moment of observation  
 2. Month of the moment of observation 
 3. Day of the moment of observation  
 4. s - separation, arcsec
 5. Sig s - the error of s , arcsec
 6. p - position angle, degree  
 7. Sig p - the error of p , degree 

----------------------------------------------
Year     Day        s     Sig s     p    Sig p       
    Month         arcsec  arcsec   deg     deg                   
----------------------------------------------