AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001FW4 ∴ Observational info
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(249815) 2001FW4  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 7697.83 days
Unobserved 801 days

 

Astrometry summary
Optical
RMS of residuals 0.53
First observation 2001-01-18.412
Last observation 2022-02-15.241
Number (Discarded) 313 (2)

 

Get the observational details
ASCII file

 

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