| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | DELTA 1 DEB |
| Spacetrack catalog number | 42188 | 37669 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:43 | 2024 Dec 21 23:40 |
| Time of closest approach (UTC) | 2024 Dec 28 16:23:05.374 |
| Minimum distance | 1.781 km |
| Height difference | -0.566 km |
| Relative speed | 14.807 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 45.7°N, 25.4°E |
| Height | 886 km |
|