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(143381) 2003BC21  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 14239 days
Unobserved 13 days

 

Astrometry summary
Optical
RMS of residuals 0.482149"
First observation 1982-04-13.44734
Last observation 2021-04-07.562461
Number (Discarded) 878 (2)

 

Get the observational details
Optical observations (ASCII file)

 

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