| Primary satellite | Secondary satellite |
| Name | Cosmos 1674 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 15945 | 35703 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:49 | 2024 Dec 20 19:48 |
| Time of closest approach (UTC) | 2024 Dec 25 11:04:38.668 |
| Minimum distance | 2.436 km |
| Height difference | 2.383 km |
| Relative speed | 6.754 km/s |
| Angle between velocity vectors | 53° |
| Geographic position | 73.9°S, 24.1°E |
| Height | 630 km |
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