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(1580) Betulia  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 25872 days
Unobserved 27 days

 

Astrometry summary
Optical
RMS of residuals 0.531456"
First observation 1950-05-22.92905
Last observation 2021-03-23.120532
Number (Discarded) 1356 (12)
Radar
First observation 1976-05-18
Last observation 2002-06-03
Delay (Discarded) 6 (0)
Doppler (Discarded) 7 (0)
Total (Discarded) 13 (0)

 

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

 

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