| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 148 |
| Spacetrack catalog number | 33933 | 43255 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2023 Oct 02 12:13 | 2023 Oct 02 19:13 |
| Time of closest approach (UTC) | 2023 Jun 09 11:37:08.597 |
| Minimum distance | 106.064 km |
| Height difference | 1.007 km |
| Relative speed | 11.656 km/s |
| Angle between velocity vectors | 103° |
| Geographic position | 72.8°N, 30.8°W |
| Height | 788 km |
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