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AstDyS ∴ Objects ∴ 1999AR4 ∴ Observational info
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(27161) 1999AR4  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11873.5 days
Unobserved 662 days

 

Astrometry summary
Optical
RMS of residuals 0.49
First observation 1989-12-30.675
Last observation 2022-07-04.228
Number (Discarded) 1803 (9)

 

Get the observational details
ASCII file

 

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