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(219071) 1997US9  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 5917 days
Unobserved 2282 days

 

Astrometry summary
Optical
RMS of residuals 0.496665"
First observation 1997-10-19.31730
Last observation 2013-12-31.10090
Number (Discarded) 782 (8)

 

Get the observational details
Optical observations (ASCII file)

 

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