| Primary satellite | Secondary satellite |
| Name | NOAA 15 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 25338 | 33881 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 May 29 16:58 | 2023 May 29 11:02 |
| Time of closest approach (UTC) | 2023 Mar 21 15:08:49.438 |
| Minimum distance | 3651.161 km |
| Height difference | 15.146 km |
| Relative speed | 8.326 km/s |
| Angle between velocity vectors | 68° |
| Geographic position | 62.6°N, 98.0°W |
| Height | 816 km |
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