| Primary satellite | Secondary satellite |
| Name | Cosmos 1536 Rocket | IRIDIUM 178 |
| Spacetrack catalog number | 14700 | 56729 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 19:05 | 2024 Dec 23 13:35 |
| Time of closest approach (UTC) | 2024 Dec 27 03:54:46.703 |
| Minimum distance | 2.817 km |
| Height difference | 2.311 km |
| Relative speed | 14.291 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 72.7°N, 106.7°E |
| Height | 637 km |
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