| Primary satellite | Secondary satellite |
| Name | Cosmos 676 Rocket | Cosmos 1538 Rocket |
| Spacetrack catalog number | 7434 | 14760 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:48 | 2024 Dec 22 18:55 |
| Time of closest approach (UTC) | 2024 Dec 27 12:12:05.349 |
| Minimum distance | 2.773 km |
| Height difference | 1.374 km |
| Relative speed | 9.788 km/s |
| Angle between velocity vectors | 82° |
| Geographic position | 68.7°S, 148.4°E |
| Height | 794 km |
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