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AstDyS ∴ Objects ∴ 2001SJ21 ∴ Observational info
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(150828) 2001SJ21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 9045.92 days
Unobserved 97 days

 

Astrometry summary
Optical
RMS of residuals 0.49
First observation 1999-04-14.435
Last observation 2024-01-19.353
Number (Discarded) 937 (2)

 

Get the observational details
ASCII file

 

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