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AstDyS ∴ Objects ∴ 1990QB2 ∴ Observational info
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(9948) 1990QB2  ▹ 
OBSERVATIONAL INFORMATION
◲
Arc information
Arc length 14109.3 days
Unobserved 282 days

 

Astrometry summary
Optical
RMS of residuals 0.53"
First observation 1979-09-23.903
Last observation 2018-05-11.182
Number (Discarded) 1540 (16)

 

Get the observational details
ASCII file

 

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





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