| Primary satellite | Secondary satellite |
| Name | Cosmos 1354 Rocket | Cosmos 858 |
| Spacetrack catalog number | 13149 | 9443 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:35 | 2024 Dec 23 09:57 |
| Time of closest approach (UTC) | 2024 Dec 24 01:55:51.318 |
| Minimum distance | 1.994 km |
| Height difference | 1.359 km |
| Relative speed | 14.292 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 15.9°S, 129.9°E |
| Height | 785 km |
|