| Primary satellite | Secondary satellite |
| Name | Envisat | COSMOS 2251 DEB |
| Spacetrack catalog number | 27386 | 33995 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 03 12:36 | 2024 Dec 03 00:27 |
| Time of closest approach (UTC) | 2024 Nov 15 02:55:07.793 |
| Minimum distance | 29.490 km |
| Height difference | -2.321 km |
| Relative speed | 14.681 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 66.2°S, 21.5°W |
| Height | 788 km |
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