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(28077) Hard  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11620.8 days
Unobserved 334 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 1991-08-06.333
Last observation 2023-05-31.167
Number (Discarded) 1939 (15)

 

Get the observational details
ASCII file

 

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