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(99942) Apophis  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 3946 days
Unobserved 905 days

 

Astrometry summary
Optical
RMS of residuals 0.327073"
First observation 2004-03-15.10789
Last observation 2015-01-03.26308
Number (Discarded) 4469 (31)
Radar
First observation 2005-01-27
Last observation 2013-03-15
Delay (Discarded) 13 (0)
Doppler (Discarded) 7 (0)
Total (Discarded) 20 (0)

 

Get the observational details
Optical observations (ASCII file)
Radar observations

 

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





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