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AstDyS ∴ Objects ∴ 1998YP21 ∴ Observational info
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(216933) 1998YP21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8902.85 days
Unobserved 361 days

 

Astrometry summary
Optical
RMS of residuals 0.52
First observation 1998-12-26.436
Last observation 2023-05-12.291
Number (Discarded) 558 (2)

 

Get the observational details
ASCII file

 

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