| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | OBJECT CA |
| Spacetrack catalog number | 13121 | 55081 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 25 21:29 | 2023 Mar 25 21:23 |
| Time of closest approach (UTC) | 2023 Feb 01 21:28:46.781 |
| Minimum distance | 15.889 km |
| Height difference | -0.925 km |
| Relative speed | 15.210 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 42.6°N, 6.1°W |
| Height | 529 km |
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