Open Access
Table A.1.
Astrometry of (458271) 2010 UM26 and 2010 RN221 extracted during this work, with the corresponding formal error bars in both coordinates. The observing site is denoted using its MPC code (third column).
| Asteroid | 0pt2ex MPC code | Date (UTC) | α (°) | δ (°) | Δα (″) | Δδ (″) | |
|---|---|---|---|---|---|---|---|
| 458271 | 2010 UM26 | 568 | 2005-05-14T09:05:44.0 | 226.661558 | -18.009950 | 0.046 | 0.037 |
| 458271 | 2010 UM26 | 568 | 2005-05-14T09:54:18.0 | 226.652996 | -18.007039 | 0.047 | 0.038 |
| 458271 | 2010 UM26 | 568 | 2005-05-14T10:50:15.7 | 226.643133 | -18.003653 | 0.051 | 0.044 |
| 458271 | 2010 UM26 | Z84 | 2022-05-28T01:01:05.2 | 293.733730 | -17.747669 | 0.25 | 0.25 |
| 458271 | 2010 UM26 | Z84 | 2022-05-30T02:07:33.7 | 293.765217 | -17.632078 | 0.7 | 0.7 |
| 458271 | 2010 UM26 | Z84 | 2022-06-24T22:51:07.3 | 291.382840 | -16.531971 | 0.23 | 0.22 |
| 458271 | 2010 UM26 | Z84 | 2022-06-25T00:12:06.4 | 291.371840 | -16.530500 | 0.17 | 0.17 |
| 458271 | 2010 UM26 | Z84 | 2022-06-25T01:33:01.8 | 291.360718 | -16.529012 | 0.17 | 0.12 |
| 458271 | 2010 UM26 | Z84 | 2022-06-25T02:50:25.7 | 291.350087 | -16.527466 | 0.19 | 0.21 |
| 458271 | 2010 UM26 | Z84 | 2022-07-07T21:22:32.2 | 288.565779 | -16.277297 | 0.2 | 0.2 |
| 458271 | 2010 UM26 | Z84 | 2022-07-08T21:56:06.8 | 288.317946 | -16.265668 | 0.18 | 0.21 |
| 458271 | 2010 UM26 | Z84 | 2022-07-09T00:08:40.2 | 288.294552 | -16.264795 | 0.13 | 0.12 |
| 458271 | 2010 UM26 | Z84 | 2022-07-09T02:21:10.5 | 288.271131 | -16.263635 | 0.27 | 0.21 |
| 2010 RN221 | 568 | 2005-05-14T09:05:44.0 | 226.661012 | -18.009844 | 0.068 | 0.063 | |
| 2010 RN221 | 568 | 2005-05-14T09:54:18.0 | 226.652492 | -18.006931 | 0.077 | 0.072 | |
| 2010 RN221 | 568 | 2005-05-14T10:50:15.7 | 226.642671 | -18.003558 | 0.09 | 0.086 | |
| 2010 RN221 | G96 | 2006-12-13T07:52:33.6 | 78.082754 | +20.140317 | 0.51 | 0.51 | |
| 2010 RN221 | G96 | 2006-12-13T08:17:11.0 | 78.077912 | +20.139436 | 0.27 | 0.27 | |
| 2010 RN221 | Z84 | 2022-05-30T02:03:46.2 | 293.754788 | -17.634214 | 0.24 | 0.25 | |
| 2010 RN221 | Z84 | 2022-06-25T01:13:01.3 | 291.350595 | -16.531642 | 0.34 | 0.34 | |
| 2010 RN221 | Z84 | 2022-07-09T02:21:10.5 | 288.257447 | -16.266148 | 0.26 | 0.24 | |
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