| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SL-16 DEB |
| Spacetrack catalog number | 35824 | 39714 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 06:36 | 2024 Dec 20 15:16 |
| Time of closest approach (UTC) | 2024 Dec 27 21:05:18.824 |
| Minimum distance | 1.610 km |
| Height difference | -0.430 km |
| Relative speed | 13.823 km/s |
| Angle between velocity vectors | 137° |
| Geographic position | 34.9°N, 44.7°E |
| Height | 866 km |
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