| Primary satellite | Secondary satellite |
| Name | Nadezhda 2 Rocket | COSMOS 1275 DEB |
| Spacetrack catalog number | 20509 | 42175 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:40 | 2024 Dec 20 08:28 |
| Time of closest approach (UTC) | 2024 Dec 27 13:28:50.762 |
| Minimum distance | 4.334 km |
| Height difference | -2.535 km |
| Relative speed | 12.144 km/s |
| Angle between velocity vectors | 111° |
| Geographic position | 77.6°S, 115.9°E |
| Height | 1023 km |
|