| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | ADEOS |
| Spacetrack catalog number | 35789 | 24277 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 03:01 |
| Time of closest approach (UTC) | 2024 Dec 23 14:47:57.454 |
| Minimum distance | 4.587 km |
| Height difference | -4.357 km |
| Relative speed | 14.871 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 5.4°N, 78.0°E |
| Height | 798 km |
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