| Primary satellite | Secondary satellite |
| Name | OAO 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 2142 | 35674 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:56 | 2024 Dec 22 03:42 |
| Time of closest approach (UTC) | 2024 Dec 27 02:04:27.565 |
| Minimum distance | 3.237 km |
| Height difference | -0.982 km |
| Relative speed | 11.225 km/s |
| Angle between velocity vectors | 98° |
| Geographic position | 25.3°N, 59.0°W |
| Height | 771 km |
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