(4544) Xanthus
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OBSERVATIONAL INFORMATION
Arc information
Arc length |
12807 |
days |
Unobserved |
5 |
days |
Astrometry summary
Optical
RMS of residuals |
0.426514 |
First observation |
1989-03-30.35087 |
Last observation |
2024-04-22.209533 |
Number (Discarded) |
2253 (12) |
|
Radar
First observation |
1990-11-19 |
Last observation |
1990-11-19 |
Delay (Discarded) |
0 (0) |
Doppler (Discarded) |
1 (0) |
Total (Discarded) |
1 (0) |
|
Note. The ASCII file is in a format suitable for OrbFit input.