AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999RA121 ∴ Observational info
Contact »
(189461) 1999RA121  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 9011.95 days
Unobserved 41 days

 

Astrometry summary
Optical
RMS of residuals 0.38
First observation 1999-07-13.362
Last observation 2024-03-15.310
Number (Discarded) 1510 (4)

 

Get the observational details
ASCII file

 

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