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(23090) 1999XX121  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 13075.9 days
Unobserved 204 days

 

Astrometry summary
Optical
RMS of residuals 0.38
First observation 1987-12-20.091
Last observation 2023-10-08.016
Number (Discarded) 2504 (4)

 

Get the observational details
ASCII file

 

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