| Primary satellite | Secondary satellite |
| Name | DELTA 1 DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 37658 | 12664 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:55 | 2024 Dec 23 09:08 |
| Time of closest approach (UTC) | 2024 Dec 29 21:31:41.589 |
| Minimum distance | 7.685 km |
| Height difference | 0.447 km |
| Relative speed | 7.275 km/s |
| Angle between velocity vectors | 59° |
| Geographic position | 73.3°S, 136.8°W |
| Height | 969 km |
|