NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Chelyabinsk ∴ Observational info
Contact »
(21088) Chelyabinsk  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 12052 days
Unobserved 9 days

 

Astrometry summary
Optical
RMS of residuals 0.357396
First observation 1990-01-30.60519
Last observation 2023-01-23.347031
Number (Discarded) 3806 (8)

 

Get the observational details
Optical observations (ASCII file)

 

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