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2009HD21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 5406 days
Unobserved 106 days

 

Astrometry summary
Optical
RMS of residuals 0.514101
First observation 2009-03-24.39328
Last observation 2024-01-11.284292
Number (Discarded) 218 (1)

 

Get the observational details
Optical observations (ASCII file)

 

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