AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001DO21 ∴ Observational info
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(94271) 2001DO21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 9299.71 days
Unobserved 53 days

 

Astrometry summary
Optical
RMS of residuals 0.47
First observation 1998-09-25.677
Last observation 2024-03-12.387
Number (Discarded) 1356 (8)

 

Get the observational details
ASCII file

 

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