| Primary satellite | Secondary satellite |
| Name | Spot 4 Rocket | IRIDIUM 142 |
| Spacetrack catalog number | 25261 | 43256 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:46 | 2024 Dec 22 10:15 |
| Time of closest approach (UTC) | 2024 Dec 24 06:15:44.297 |
| Minimum distance | 1.923 km |
| Height difference | 1.881 km |
| Relative speed | 14.430 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 78.0°N, 131.8°E |
| Height | 788 km |
|