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1998SD9  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 7302 days
Unobserved 2022 days

 

Astrometry summary
Optical
RMS of residuals 6.841340
First observation 1998-09-18.32769
Last observation 2018-09-15.249984
Number (Discarded) 149 (5)
Radar
First observation 2018-08-30
Last observation 2018-08-30
Delay (Discarded) 1 (0)
Doppler (Discarded) 0 (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.