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AstDyS ∴ Objects ∴ 1998FJ57 ∴ Observational info
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(39922) 1998FJ57  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 25202.1 days
Unobserved 58 days

 

Astrometry summary
Optical
RMS of residuals 0.39
First observation 1955-03-22.232
Last observation 2024-03-21.284
Number (Discarded) 2530 (6)

 

Get the observational details
ASCII file

 

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