| Primary satellite | Secondary satellite |
| Name | ARIANE 5 R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 27387 | 33766 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Mar 27 21:53 | 2023 Mar 27 20:02 |
| Time of closest approach (UTC) | 2023 Feb 05 14:08:39.816 |
| Minimum distance | 170.085 km |
| Height difference | 2.279 km |
| Relative speed | 14.549 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 72.3°S, 176.3°E |
| Height | 803 km |
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