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(226554) 2003WR21  ▹ 
OBSERVATIONAL INFORMATION
Arc information
Arc length 12071 days
Unobserved 139 days

 

Astrometry summary
Optical
RMS of residuals 0.538126
First observation 1990-10-24.42500
Last observation 2023-11-11.202281
Number (Discarded) 507 (3)
Radar
First observation 2017-06-04
Last observation 2017-06-04
Delay (Discarded) 1 (0)
Doppler (Discarded) 1 (0)
Total (Discarded) 2 (0)

 

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

 

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