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AstDyS ∴ Objects ∴ 2001QS239 ∴ Observational info
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(178972) 2001QS239  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8771.21 days
Unobserved 400 days

 

Astrometry summary
Optical
RMS of residuals 0.48
First observation 1999-03-21.276
Last observation 2023-03-26.482
Number (Discarded) 480 (5)

 

Get the observational details
ASCII file

 

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