| Primary satellite | Secondary satellite |
| Name | DELTA 1 DEB | IRIDIUM 146 |
| Spacetrack catalog number | 37651 | 43254 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 Nov 14 12:59 | 2025 Nov 17 13:34 |
| Time of closest approach (UTC) | 2025 Oct 19 06:18:25.975 |
| Minimum distance | 167.106 km |
| Height difference | 7.149 km |
| Relative speed | 1.662 km/s |
| Angle between velocity vectors | 13° |
| Geographic position | 2.7°N, 91.4°W |
| Height | 775 km |
|