| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | NUSAT-35 (WILLIAMINA) |
| Spacetrack catalog number | 13121 | 55048 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 22 10:54 | 2023 Mar 22 04:07 |
| Time of closest approach (UTC) | 2023 Feb 02 11:58:07.857 |
| Minimum distance | 15.928 km |
| Height difference | 3.531 km |
| Relative speed | 15.193 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 2.7°N, 143.0°E |
| Height | 530 km |
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