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AstDyS ∴ Objects ∴ 1999XQ20 ∴ Observational info
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(21988) 1999XQ20  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 13231.9 days
Unobserved 712 days

 

Astrometry summary
Optical
RMS of residuals 0.50
First observation 1986-03-04.361
Last observation 2022-05-26.226
Number (Discarded) 1321 (9)

 

Get the observational details
ASCII file

 

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