AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998QQ21 ∴ Observational info
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(79534) 1998QQ21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11749.9 days
Unobserved 144 days

 

Astrometry summary
Optical
RMS of residuals 0.45
First observation 1991-10-06.175
Last observation 2023-12-07.098
Number (Discarded) 889 (4)

 

Get the observational details
ASCII file

 

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