AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001XH257 ∴ Observational info
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(89656) 2001XH257  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 9990.12 days
Unobserved 222 days

 

Astrometry summary
Optical
RMS of residuals 0.64"
First observation 1991-05-06.350
Last observation 2018-09-11.470
Number (Discarded) 578 (8)

 

Get the observational details
ASCII file

 

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





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