| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | FLOCK 4Y 19 |
| Spacetrack catalog number | 13121 | 55026 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 25 21:29 | 2023 Mar 25 17:11 |
| Time of closest approach (UTC) | 2023 Feb 02 14:57:29.176 |
| Minimum distance | 118.563 km |
| Height difference | 0.651 km |
| Relative speed | 15.213 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 42.6°N, 90.1°E |
| Height | 529 km |
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