(226554) 2003WR21
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OBSERVATIONAL INFORMATION
Arc information
Arc length |
12071 |
days |
Unobserved |
168 |
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) |
|
Note. The ASCII file is in a format suitable for OrbFit input.