| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | FLOCK 4Y 9 |
| Spacetrack catalog number | 13121 | 55069 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 22 10:54 | 2023 Mar 22 02:45 |
| Time of closest approach (UTC) | 2023 Feb 01 23:19:55.570 |
| Minimum distance | 192.163 km |
| Height difference | 1.649 km |
| Relative speed | 15.182 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 14.1°S, 23.7°W |
| Height | 536 km |
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