| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | O/OREOS (USA 219) |
| Spacetrack catalog number | 38212 | 37224 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 14:24 | 2024 Dec 23 01:27 |
| Time of closest approach (UTC) | 2024 Dec 28 15:17:31.408 |
| Minimum distance | 0.970 km |
| Height difference | -0.498 km |
| Relative speed | 14.458 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 15.1°N, 111.7°W |
| Height | 591 km |
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