| Primary satellite | Secondary satellite |
| Name | SPOT 1 Rocket Y | COSMOS 2251 DEB |
| Spacetrack catalog number | 17129 | 34474 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 22 16:18 |
| Time of closest approach (UTC) | 2024 Dec 27 05:16:37.633 |
| Minimum distance | 4.047 km |
| Height difference | 2.770 km |
| Relative speed | 14.837 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 45.4°S, 24.7°E |
| Height | 828 km |
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