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AstDyS ∴ Objects ∴ 1999SH21 ∴ Observational info
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(312984) 1999SH21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8652.83 days
Unobserved 319 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 1999-09-30.360
Last observation 2023-06-09.192
Number (Discarded) 341 (2)

 

Get the observational details
ASCII file

 

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