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AstDyS ∴ Objects ∴ 2003XX21 ∴ Observational info
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(247940) 2003XX21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 9417.01 days
Unobserved 235 days

 

Astrometry summary
Optical
RMS of residuals 0.46
First observation 1997-11-21.259
Last observation 2023-09-03.274
Number (Discarded) 444 (3)

 

Get the observational details
ASCII file

 

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