| Primary satellite | Secondary satellite |
| Name | NOAA 15 | Rex-II |
| Spacetrack catalog number | 25338 | 23814 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 May 29 16:58 | 2023 May 29 18:38 |
| Time of closest approach (UTC) | 2023 Apr 05 20:26:22.505 |
| Minimum distance | 11.768 km |
| Height difference | 2.549 km |
| Relative speed | 14.311 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 74.0°N, 162.6°W |
| Height | 814 km |
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