| Primary satellite | Secondary satellite |
| Name | Cosmos 1602 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 15332 | 35488 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 13 14:44 | 2026 Jan 12 12:09 |
| Time of closest approach (UTC) | 2025 Dec 20 14:08:54.969 |
| Minimum distance | 467.221 km |
| Height difference | -1.528 km |
| Relative speed | 14.031 km/s |
| Angle between velocity vectors | 136° |
| Geographic position | 70.3°N, 16.8°E |
| Height | 621 km |
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