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AstDyS ∴ Objects ∴ 1991NN9 ∴ Observational info
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(37589) 1991NN9  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 12057.2 days
Unobserved 75 days

 

Astrometry summary
Optical
RMS of residuals 0.46
First observation 1991-07-09.386
Last observation 2024-07-12.620
Number (Discarded) 1951 (7)

 

Get the observational details
ASCII file

 

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