| Primary satellite | Secondary satellite |
| Name | Cosmos 864 Rocket | Kosmos-951 |
| Spacetrack catalog number | 9510 | 10352 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:37 | 2024 Dec 23 04:23 |
| Time of closest approach (UTC) | 2024 Dec 26 07:15:39.675 |
| Minimum distance | 1.535 km |
| Height difference | -0.297 km |
| Relative speed | 8.477 km/s |
| Angle between velocity vectors | 70° |
| Geographic position | 81.4°N, 59.0°E |
| Height | 973 km |
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