| Primary satellite | Secondary satellite |
| Name | Cosmos 1000 Rocket | deb Kosmos-400 |
| Spacetrack catalog number | 10777 | 5052 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:51 | 2024 Dec 23 04:08 |
| Time of closest approach (UTC) | 2024 Dec 24 14:24:18.207 |
| Minimum distance | 3.012 km |
| Height difference | -1.213 km |
| Relative speed | 4.751 km/s |
| Angle between velocity vectors | 38° |
| Geographic position | 58.4°S, 25.6°E |
| Height | 1005 km |
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