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2009HA21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 5109 days
Unobserved 414 days

 

Astrometry summary
Optical
RMS of residuals 0.681961
First observation 2009-04-20.24948
Last observation 2023-04-16.164585
Number (Discarded) 101 (2)

 

Get the observational details
Optical observations (ASCII file)

 

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