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(163051) 2001YJ4  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 16116 days
Unobserved 102 days

 

Astrometry summary
Optical
RMS of residuals 0.573532"
First observation 1978-02-05.64724
Last observation 2022-03-23.127405
Number (Discarded) 955 (8)

 

Get the observational details
Optical observations (ASCII file)

 

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