AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Chenweitung ∴ Observational info
Contact »
(31909) Chenweitung  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 15465.9 days
Unobserved 233 days

 

Astrometry summary
Optical
RMS of residuals 0.51
First observation 1981-05-08.359
Last observation 2023-09-11.266
Number (Discarded) 1343 (9)

 

Get the observational details
ASCII file

 

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