| Primary satellite | Secondary satellite |
| Name | Transit 2A Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 47 | 37537 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 06 21:03 | 2024 Dec 06 10:08 |
| Time of closest approach (UTC) | 2024 Nov 06 21:52:08.768 |
| Minimum distance | 49.040 km |
| Height difference | -2.496 km |
| Relative speed | 10.755 km/s |
| Angle between velocity vectors | 92° |
| Geographic position | 60.5°N, 60.3°W |
| Height | 785 km |
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