| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CANX 3B (BRITE-ASRA) |
| Spacetrack catalog number | 35671 | 39091 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 23 02:04 |
| Time of closest approach (UTC) | 2024 Dec 24 21:51:17.010 |
| Minimum distance | 1.342 km |
| Height difference | 0.274 km |
| Relative speed | 14.723 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 63.9°N, 103.2°E |
| Height | 774 km |
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