| Primary satellite | Secondary satellite |
| Name | IRIDIUM 33 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 33775 | 33766 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:00 | 2024 Dec 23 04:30 |
| Time of closest approach (UTC) | 2024 Dec 28 01:29:28.793 |
| Minimum distance | 2.835 km |
| Height difference | -0.841 km |
| Relative speed | 14.221 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 56.5°S, 95.4°W |
| Height | 772 km |
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