| Primary satellite | Secondary satellite |
| Name | NOAA 19 | COSMOS 2251 DEB |
| Spacetrack catalog number | 33591 | 35706 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Dec 07 22:08 | 2025 Dec 06 12:46 |
| Time of closest approach (UTC) | 2025 Nov 18 21:38:39.513 |
| Minimum distance | 82.127 km |
| Height difference | -0.881 km |
| Relative speed | 9.314 km/s |
| Angle between velocity vectors | 77° |
| Geographic position | 69.6°N, 149.4°W |
| Height | 868 km |
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