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(331509) 1999YA  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 7442 days
Unobserved 507 days

 

Astrometry summary
Optical
RMS of residuals 0.450080"
First observation 1999-12-16.29578
Last observation 2020-05-01.146647
Number (Discarded) 248 (0)

 

Get the observational details
Optical observations (ASCII file)

 

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