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AstDyS ∴ Objects ∴ 1990QJ9 ∴ Observational info
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(16484) 1990QJ9  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 15166 days
Unobserved 318 days

 

Astrometry summary
Optical
RMS of residuals 0.48
First observation 1981-12-04.019
Last observation 2023-06-13.032
Number (Discarded) 2130 (20)

 

Get the observational details
ASCII file

 

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