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AstDyS ∴ Objects ∴ 2001YM121 ∴ Observational info
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(153941) 2001YM121  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8163.27 days
Unobserved 37 days

 

Astrometry summary
Optical
RMS of residuals 0.60
First observation 2001-11-12.372
Last observation 2024-03-19.637
Number (Discarded) 489 (3)

 

Get the observational details
ASCII file

 

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