| 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 16:15:23.092 |
| Minimum distance | 107.017 km |
| Height difference | 3.065 km |
| Relative speed | 15.065 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 68.1°S, 68.5°W |
| Height | 643 km |
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