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(457663) 2009DN1  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 12107 days
Unobserved 197 days

 

Astrometry summary
Optical
RMS of residuals 0.489391
First observation 1990-08-20.23889
Last observation 2023-10-13.321833
Number (Discarded) 192 (1)

 

Get the observational details
Optical observations (ASCII file)

 

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