| Primary satellite | Secondary satellite |
| Name | Spot 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 16613 | 35891 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 06 14:43 | 2023 Dec 06 21:54 |
| Time of closest approach (UTC) | 2023 Sep 30 02:02:13.820 |
| Minimum distance | 444.835 km |
| Height difference | 45.104 km |
| Relative speed | 15.018 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 58.9°N, 74.7°E |
| Height | 632 km |
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