| Primary satellite | Secondary satellite |
| Name | Nadezhda 2 Rocket | deb Kosmos-1275 |
| Spacetrack catalog number | 20509 | 12775 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:40 | 2024 Dec 22 05:26 |
| Time of closest approach (UTC) | 2024 Dec 25 17:21:11.873 |
| Minimum distance | 4.453 km |
| Height difference | -2.503 km |
| Relative speed | 14.600 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 0.1°N, 85.1°W |
| Height | 1004 km |
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