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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1997EH9 ∴ Observational info
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(90903) 1997EH9  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 11034.9 days
Unobserved 683 days

 

Astrometry summary
Optical
RMS of residuals 0.56
First observation 1992-03-30.271
Last observation 2022-06-16.193
Number (Discarded) 534 (3)

 

Get the observational details
ASCII file

 

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