| Primary satellite | Secondary satellite |
| Name | SPOT 1 Rocket Y | COSMOS 2251 DEB |
| Spacetrack catalog number | 17129 | 33841 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:50 | 2024 Dec 22 16:25 |
| Time of closest approach (UTC) | 2024 Dec 27 04:03:38.546 |
| Minimum distance | 2.008 km |
| Height difference | -1.967 km |
| Relative speed | 14.867 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 33.7°S, 122.9°W |
| Height | 796 km |
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