| Primary satellite | Secondary satellite |
| Name | ARIANE 5 R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 27387 | 34953 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 27 21:53 | 2023 Mar 27 19:31 |
| Time of closest approach (UTC) | 2023 Feb 07 21:14:35.359 |
| Minimum distance | 102.178 km |
| Height difference | -3.782 km |
| Relative speed | 14.800 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 56.2°S, 85.3°E |
| Height | 794 km |
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