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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2008US21 ∴ Observational info
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(263838) 2008US21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 6342.25 days
Unobserved 729 days

 

Astrometry summary
Optical
RMS of residuals 0.51
First observation 2004-12-21.401
Last observation 2022-05-03.646
Number (Discarded) 407 (2)

 

Get the observational details
ASCII file

 

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