| Primary satellite | Secondary satellite |
| Name | Explorer 7 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 22 | 34103 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Mar 26 21:58 | 2023 Mar 26 22:53 |
| Time of closest approach (UTC) | 2023 Jan 30 07:01:54.457 |
| Minimum distance | 34.922 km |
| Height difference | 0.268 km |
| Relative speed | 13.645 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 26.2°N, 153.2°W |
| Height | 662 km |
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