AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1997EF57 ∴ Observational info
Contact »
(181770) 1997EF57  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 9691.12 days
Unobserved 226 days

 

Astrometry summary
Optical
RMS of residuals 0.59
First observation 1997-03-10.269
Last observation 2023-09-21.389
Number (Discarded) 345 (0)

 

Get the observational details
ASCII file

 

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