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(148169) 1999XQ257  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8867.15 days
Unobserved 40 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 1999-12-07.310
Last observation 2024-03-17.462
Number (Discarded) 746 (3)

 

Get the observational details
ASCII file

 

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