| Primary satellite | Secondary satellite |
| Name | OAO 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 2142 | 33761 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:56 | 2024 Dec 23 07:21 |
| Time of closest approach (UTC) | 2024 Dec 29 17:15:57.575 |
| Minimum distance | 9.750 km |
| Height difference | -1.884 km |
| Relative speed | 12.081 km/s |
| Angle between velocity vectors | 108° |
| Geographic position | 8.4°S, 1.9°E |
| Height | 776 km |
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