| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 23088 | 34492 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 16:16 | 2025 Nov 16 12:38 |
| Time of closest approach (UTC) | 2025 Oct 17 06:28:02.075 |
| Minimum distance | 2217.585 km |
| Height difference | -22.885 km |
| Relative speed | 3.645 km/s |
| Angle between velocity vectors | 28° |
| Geographic position | 49.9°S, 134.9°W |
| Height | 861 km |
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