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(200840) 2001XN254  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 9378 days
Unobserved 480 days

 

Astrometry summary
Optical
RMS of residuals 0.539991"
First observation 1994-12-08.34048
Last observation 2020-08-11.33607
Number (Discarded) 696 (10)

 

Get the observational details
Optical observations (ASCII file)

 

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