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(1866) Sisyphus  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 24286 days
Unobserved 3 days

 

Astrometry summary
Optical
RMS of residuals 0.377906"
First observation 1955-01-26.45069
Last observation 2021-07-24.305388
Number (Discarded) 5145 (17)
Radar
First observation 1985-12-08
Last observation 1985-12-08
Delay (Discarded) 0 (0)
Doppler (Discarded) 1 (0)
Total (Discarded) 1 (0)

 

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

 

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