AstDyS-2

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AstDyS ∴ Objects ∴ 2009ER21 ∴ Observational info
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(312540) 2009ER21  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 6234.86 days
Unobserved 198 days

 

Astrometry summary
Optical
RMS of residuals 0.55"
First observation 2002-02-07.389
Last observation 2019-03-05.253
Number (Discarded) 183 (4)

 

Get the observational details
ASCII file

 

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





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