| Primary satellite | Secondary satellite |
| Name | Cosmos 2098 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 20775 | 33934 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Nov 16 12:33 | 2025 Nov 16 05:14 |
| Time of closest approach (UTC) | 2025 Oct 19 12:58:33.367 |
| Minimum distance | 113.173 km |
| Height difference | 6.829 km |
| Relative speed | 14.631 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 16.7°N, 156.9°E |
| Height | 706 km |
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