| Primary satellite | Secondary satellite |
| Name | Spot 4 Rocket | IRIDIUM 122 |
| Spacetrack catalog number | 25261 | 42957 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Jul 12 12:27 | 2025 Jul 12 23:43 |
| Time of closest approach (UTC) | 2024 Jun 20 21:32:13.232 |
| Minimum distance | 1071.351 km |
| Height difference | -0.084 km |
| Relative speed | 14.546 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 77.3°S, 14.6°W |
| Height | 804 km |
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