AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2011CO21 ∴ Observational info
Contact »
(490918) 2011CO21  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 4545.78 days
Unobserved 289 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 2011-01-30.538
Last observation 2023-07-12.318
Number (Discarded) 153 (2)

 

Get the observational details
ASCII file

 

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