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AstDyS ∴ Objects ∴ 2001YQ121 ∴ Observational info
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(252659) 2001YQ121  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 7950.05 days
Unobserved 224 days

 

Astrometry summary
Optical
RMS of residuals 0.55
First observation 2001-12-09.242
Last observation 2023-09-15.296
Number (Discarded) 563 (34)

 

Get the observational details
ASCII file

 

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