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(379768) 2011HL21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 8871.11 days
Unobserved 71 days

 

Astrometry summary
Optical
RMS of residuals 0.48
First observation 1999-11-02.215
Last observation 2024-02-15.330
Number (Discarded) 266 (2)

 

Get the observational details
ASCII file

 

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