| Primary satellite | Secondary satellite |
| Name | ARIANE 5 R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 27387 | 34609 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 27 21:53 | 2023 Mar 27 11:40 |
| Time of closest approach (UTC) | 2023 Feb 06 22:30:24.298 |
| Minimum distance | 36.464 km |
| Height difference | 4.921 km |
| Relative speed | 14.903 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 21.0°N, 103.8°W |
| Height | 788 km |
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