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(7485) Changchun  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 33709.9 days
Unobserved 54 days

 

Astrometry summary
Optical
RMS of residuals 0.62
First observation 1931-12-05.322
Last observation 2024-03-21.261
Number (Discarded) 5150 (45)

 

Get the observational details
ASCII file

 

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