| Primary satellite | Secondary satellite |
| Name | Cosmos 2298 Rocket | START 1 DEB |
| Spacetrack catalog number | 23432 | 27752 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 13 03:10 | 2025 Nov 12 03:20 |
| Time of closest approach (UTC) | 2025 Oct 13 11:34:24.876 |
| Minimum distance | 34.716 km |
| Height difference | 5.784 km |
| Relative speed | 14.407 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 11.4°N, 56.3°W |
| Height | 776 km |
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