| Primary satellite | Secondary satellite |
| Name | Cosmos 1346 Rocket | GHGSAT-C2 |
| Spacetrack catalog number | 13121 | 47509 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 27 03:39 | 2023 Mar 26 20:51 |
| Time of closest approach (UTC) | 2023 Jan 30 23:18:43.863 |
| Minimum distance | 224.485 km |
| Height difference | 4.916 km |
| Relative speed | 15.142 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 70.6°N, 47.3°W |
| Height | 535 km |
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