| Primary satellite | Secondary satellite |
| Name | Cosmos 2218 Rocket | Kosmos-2315 |
| Spacetrack catalog number | 22208 | 23603 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 16 22:58 | 2021 Apr 16 20:03 |
| Time of closest approach (UTC) | 2021 Mar 02 09:12:54.964 |
| Minimum distance | 2.763 km |
| Height difference | 2.665 km |
| Relative speed | 14.111 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 64.3°S, 142.5°E |
| Height | 998 km |
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