| Primary satellite | Secondary satellite |
| Name | Cosmos 1943 | CSL-04 Rocket |
| Spacetrack catalog number | 19119 | 25732 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Jan 28 16:00 | 2023 Jan 28 21:05 |
| Time of closest approach (UTC) | 2022 Dec 05 06:28:36.107 |
| Minimum distance | 39.630 km |
| Height difference | -2.490 km |
| Relative speed | 14.396 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 64.3°S, 10.7°E |
| Height | 857 km |
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