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(480883) 2001YE4  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 5498 days
Unobserved 1724 days

 

Astrometry summary
Optical
RMS of residuals 0.468172"
First observation 2001-12-21.44147
Last observation 2017-01-09.16068
Number (Discarded) 354 (1)
Radar
First observation 2002-01-10
Last observation 2016-12-29
Delay (Discarded) 6 (0)
Doppler (Discarded) 1 (0)
Total (Discarded) 7 (0)

 

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

 

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