| Primary satellite | Secondary satellite |
| Name | Spot 4 Rocket | IRIDIUM 137 |
| Spacetrack catalog number | 25261 | 43076 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:46 | 2024 Dec 22 15:58 |
| Time of closest approach (UTC) | 2024 Dec 23 22:13:54.413 |
| Minimum distance | 4.985 km |
| Height difference | 3.246 km |
| Relative speed | 14.914 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 26.3°N, 123.2°E |
| Height | 777 km |
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