| Primary satellite | Secondary satellite |
| Name | ISIS 1 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 3669 | 36011 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 21 21:05 | 2023 Sep 15 03:07 |
| Time of closest approach (UTC) | 2023 Jun 05 08:48:50.382 |
| Minimum distance | 309.851 km |
| Height difference | -96.055 km |
| Relative speed | 15.129 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 80.3°S, 128.9°W |
| Height | 902 km |
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