| Primary satellite | Secondary satellite |
| Name | Envisat | Cosmos 773 |
| Spacetrack catalog number | 27386 | 8343 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Nov 13 20:00 | 2025 Nov 13 09:19 |
| Time of closest approach (UTC) | 2025 Oct 16 18:49:47.134 |
| Minimum distance | 5.048 km |
| Height difference | 2.495 km |
| Relative speed | 14.668 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 65.9°S, 95.0°E |
| Height | 787 km |
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