| Primary satellite | Secondary satellite |
| Name | Cosmos 2098 Rocket | ELSA-D CLIENT |
| Spacetrack catalog number | 20775 | 51288 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Nov 16 12:33 | 2025 Nov 16 08:07 |
| Time of closest approach (UTC) | 2025 Oct 19 01:56:06.140 |
| Minimum distance | 104.638 km |
| Height difference | -32.042 km |
| Relative speed | 15.425 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 80.2°N, 7.3°E |
| Height | 438 km |
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