| Primary satellite | Secondary satellite |
| Name | Cosmos 1308 Rocket | deb Delta |
| Spacetrack catalog number | 12836 | 21457 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 18:00 | 2025 Nov 16 17:35 |
| Time of closest approach (UTC) | 2025 Oct 17 01:35:06.636 |
| Minimum distance | 84.218 km |
| Height difference | -10.733 km |
| Relative speed | 13.385 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 79.5°N, 58.7°E |
| Height | 1000 km |
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