AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2009ON23 ∴ Observational info
Contact »
(490384) 2009ON23  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 9027.12 days
Unobserved 197 days

 

Astrometry summary
Optical
RMS of residuals 0.42
First observation 1999-03-22.236
Last observation 2023-12-08.354
Number (Discarded) 135 (3)

 

Get the observational details
ASCII file

 

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