| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | FLOCK 4Y 13 |
| Spacetrack catalog number | 13121 | 55079 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 26 21:18 | 2023 Mar 26 22:13 |
| Time of closest approach (UTC) | 2023 Feb 01 21:44:43.469 |
| Minimum distance | 195.741 km |
| Height difference | 0.535 km |
| Relative speed | 15.187 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 9.1°S, 0.6°W |
| Height | 534 km |
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