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(137799) 1999YB  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 10836 days
Unobserved 17 days

 

Astrometry summary
Optical
RMS of residuals 0.538974"
First observation 1991-03-20.59949
Last observation 2020-11-18.152868
Number (Discarded) 817 (2)

 

Get the observational details
Optical observations (ASCII file)

 

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