| Primary satellite | Secondary satellite |
| Name | Cosmos 2112 Rocket | Cosmos 1954 |
| Spacetrack catalog number | 21015 | 19256 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 17 05:21 | 2021 Apr 16 21:18 |
| Time of closest approach (UTC) | 2021 Mar 05 13:58:09.968 |
| Minimum distance | 2.566 km |
| Height difference | 2.553 km |
| Relative speed | 14.242 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 22.3°S, 147.5°E |
| Height | 786 km |
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