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AstDyS ∴ Objects ∴ 1981ER42 ∴ Observational info
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(17394) 1981ER42  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 14457.3 days
Unobserved 355 days

 

Astrometry summary
Optical
RMS of residuals 0.57"
First observation 1978-10-03.251
Last observation 2018-05-03.535
Number (Discarded) 1189 (9)

 

Get the observational details
ASCII file

 

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





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