(7521) 1990QS2
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OBSERVATIONAL INFORMATION
Arc information
Arc length |
15001.5 |
days |
Unobserved |
31 |
days |
Astrometry summary
Optical
RMS of residuals |
0.57 |
First observation |
1983-04-16.867 |
Last observation |
2024-05-12.322 |
Number (Discarded) |
4054 (187) |
|
Note: The ASCII file is in a format suitable for OrbFit input.