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1998US18  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 7704 days
Unobserved 218 days

 

Astrometry summary
Optical
RMS of residuals 0.562377"
First observation 1998-10-25.13526
Last observation 2019-11-28.24091
Number (Discarded) 68 (0)

 

Get the observational details
Optical observations (ASCII file)

 

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