| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | Nimbus 3 Rocket |
| Spacetrack catalog number | 42120 | 3892 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 05:14 | 2024 Dec 22 17:23 |
| Time of closest approach (UTC) | 2024 Dec 24 07:58:00.516 |
| Minimum distance | 1.728 km |
| Height difference | 1.718 km |
| Relative speed | 14.509 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 74.2°S, 163.4°W |
| Height | 1105 km |
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