| Primary satellite | Secondary satellite |
| Name | Cosmos 1538 Rocket | Cosmos 676 Rocket |
| Spacetrack catalog number | 14760 | 7434 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:37 | 2024 Dec 23 01:48 |
| Time of closest approach (UTC) | 2024 Dec 27 12:12:05.278 |
| Minimum distance | 3.946 km |
| Height difference | -1.369 km |
| Relative speed | 9.788 km/s |
| Angle between velocity vectors | 82° |
| Geographic position | 68.7°S, 148.5°E |
| Height | 795 km |
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