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AstDyS ∴ Objects ∴ 1999XL229 ∴ Observational info
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(71189) 1999XL229  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11953.8 days
Unobserved 329 days

 

Astrometry summary
Optical
RMS of residuals 0.48
First observation 1990-09-15.381
Last observation 2023-06-08.188
Number (Discarded) 863 (3)

 

Get the observational details
ASCII file

 

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