| Primary satellite | Secondary satellite |
| Name | Meteor 2-10 Rocket | Star 20 E-46? |
| Spacetrack catalog number | 14453 | 21528 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 01 15:16 | 2021 Mar 01 21:46 |
| Time of closest approach (UTC) | 2021 Jan 23 09:36:08.839 |
| Minimum distance | 6.063 km |
| Height difference | -6.060 km |
| Relative speed | 14.037 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 75.7°S, 82.3°W |
| Height | 805 km |
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