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(274855) 2009RB4  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 11126 days
Unobserved 254 days

 

Astrometry summary
Optical
RMS of residuals 0.491445"
First observation 1990-07-27.36042
Last observation 2021-01-11.226458
Number (Discarded) 458 (2)

 

Get the observational details
Optical observations (ASCII file)

 

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