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(177) Irma  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 53257.8 days
Unobserved 231 days

 

Astrometry summary
Optical
RMS of residuals 0.40
First observation 1877-11-08.032
Last observation 2023-09-01.819
Number (Discarded) 4601 (54)

 

Get the observational details
ASCII file

 

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