NEODyS-2

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2004BY21  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 6954 days
Unobserved 420 days

 

Astrometry summary
Optical
RMS of residuals 0.572617
First observation 2004-01-19.27501
Last observation 2023-02-02.523518
Number (Discarded) 61 (2)

 

Get the observational details
Optical observations (ASCII file)

 

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