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(2212) Hephaistos  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 17185 days
Unobserved 20 days

 

Astrometry summary
Optical
RMS of residuals 0.434675"
First observation 1974-12-18.35984
Last observation 2022-01-04.88460
Number (Discarded) 3083 (4)

 

Get the observational details
Optical observations (ASCII file)

 

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