| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | FLOCK 4Y 23 |
| Spacetrack catalog number | 13121 | 55080 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 25 21:29 | 2023 Mar 25 17:32 |
| Time of closest approach (UTC) | 2023 Feb 01 19:48:59.326 |
| Minimum distance | 45.938 km |
| Height difference | -7.327 km |
| Relative speed | 15.218 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 58.9°N, 12.3°E |
| Height | 532 km |
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