AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999YY22 ∴ Observational info
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(71231) 1999YY22  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11771.8 days
Unobserved 380 days

 

Astrometry summary
Optical
RMS of residuals 0.48
First observation 1991-01-21.344
Last observation 2023-04-15.140
Number (Discarded) 752 (2)

 

Get the observational details
ASCII file

 

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