| Primary satellite | Secondary satellite |
| Name | DX 1 | Cosmos 2221 Rocket |
| Spacetrack catalog number | 40071 | 22237 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2023 Sep 22 01:41 | 2023 Sep 22 02:08 |
| Time of closest approach (UTC) | 2023 Jun 14 17:52:41.291 |
| Minimum distance | 106.068 km |
| Height difference | 3.002 km |
| Relative speed | 15.066 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 67.7°S, 93.3°W |
| Height | 642 km |
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