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(163051) 2001YJ4  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 16706 days
Unobserved 148 days

 

Astrometry summary
Optical
RMS of residuals 0.560319
First observation 1978-02-05.64724
Last observation 2023-11-02.291531
Number (Discarded) 1122 (8)

 

Get the observational details
Optical observations (ASCII file)

 

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