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(20490) 1999OW2  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 16864.2 days
Unobserved 250 days

 

Astrometry summary
Optical
RMS of residuals 0.44
First observation 1977-07-12.540
Last observation 2023-09-13.753
Number (Discarded) 3046 (227)

 

Get the observational details
ASCII file

 

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