| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | NLS 7.1/CANX 4 |
| Spacetrack catalog number | 38212 | 40055 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 20 14:24 | 2024 Dec 23 02:55 |
| Time of closest approach (UTC) | 2024 Dec 24 17:23:30.946 |
| Minimum distance | 2.533 km |
| Height difference | -2.178 km |
| Relative speed | 14.704 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 68.7°S, 5.7°E |
| Height | 654 km |
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