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(162000) 1990OS  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 12258 days
Unobserved 14 days

 

Astrometry summary
Optical
RMS of residuals 0.475789
First observation 1990-07-21.41111
Last observation 2024-02-11.22619
Number (Discarded) 421 (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.