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AstDyS ∴ Objects ∴ 1999RR221 ∴ Observational info
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(102166) 1999RR221  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 9358.98 days
Unobserved 147 days

 

Astrometry summary
Optical
RMS of residuals 0.52
First observation 1998-04-19.245
Last observation 2023-12-03.220
Number (Discarded) 1123 (73)

 

Get the observational details
ASCII file

 

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