| Primary satellite | Secondary satellite |
| Name | STRAND 1 | deb Kosmos-1275 |
| Spacetrack catalog number | 39090 | 12739 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:12 | 2024 Dec 22 18:40 |
| Time of closest approach (UTC) | 2024 Dec 24 19:38:48.601 |
| Minimum distance | 2.905 km |
| Height difference | -1.817 km |
| Relative speed | 14.948 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 56.6°N, 141.5°E |
| Height | 773 km |
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