| Primary satellite | Secondary satellite |
| Name | SPOT 1 Rocket Y | COSMOS 2251 DEB |
| Spacetrack catalog number | 17129 | 34582 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 22 16:21 |
| Time of closest approach (UTC) | 2024 Dec 26 06:14:13.865 |
| Minimum distance | 4.332 km |
| Height difference | 3.538 km |
| Relative speed | 14.871 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 18.3°S, 158.4°W |
| Height | 790 km |
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