| Primary satellite | Secondary satellite |
| Name | NOAA 18 | NOAA 11 |
| Spacetrack catalog number | 28654 | 19531 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 May 19 04:12 | 2025 May 18 20:54 |
| Time of closest approach (UTC) | 2024 Sep 14 22:27:40.916 |
| Minimum distance | 1133.743 km |
| Height difference | -1.943 km |
| Relative speed | 12.676 km/s |
| Angle between velocity vectors | 117° |
| Geographic position | 79.6°N, 118.4°W |
| Height | 857 km |
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