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AstDyS ∴ Objects ∴ 2001YD109 ∴ Observational info
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(203459) 2001YD109  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8853.96 days
Unobserved 333 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 1999-03-23.350
Last observation 2023-06-19.313
Number (Discarded) 649 (1)

 

Get the observational details
ASCII file

 

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