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(162000) 1990OS  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 9679 days
Unobserved 1230 days

 

Astrometry summary
Optical
RMS of residuals 0.476178"
First observation 1990-07-21.41111
Last observation 2017-01-19.14031
Number (Discarded) 411 (3)
Radar
First observation 1990-08-02
Last observation 2003-11-12
Delay (Discarded) 5 (0)
Doppler (Discarded) 4 (0)
Total (Discarded) 9 (0)

 

Get the observational details
Optical observations (ASCII file)
Radar observations

 

Note. The ASCII file is in a format suitable for OrbFit input.