| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 33 DEB |
| Spacetrack catalog number | 37994 | 33776 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2022 May 18 10:24 | 2022 May 18 09:50 |
| Time of closest approach (UTC) | 2022 Jan 29 11:41:23.017 |
| Minimum distance | 80.608 km |
| Height difference | -0.426 km |
| Relative speed | 5.585 km/s |
| Angle between velocity vectors | 44° |
| Geographic position | 70.6°S, 3.3°W |
| Height | 815 km |
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