| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | deb Delta 139 |
| Spacetrack catalog number | 27733 | 14909 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 23 02:22 |
| Time of closest approach (UTC) | 2024 Dec 28 23:39:53.882 |
| Minimum distance | 2.643 km |
| Height difference | -2.278 km |
| Relative speed | 14.854 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 14.4°S, 145.6°E |
| Height | 858 km |
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