| Primary satellite | Secondary satellite |
| Name | NOAA 15 | FENGYUN 1C DEB |
| Spacetrack catalog number | 25338 | 31486 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Feb 27 20:08 | 2021 Feb 27 11:51 |
| Time of closest approach (UTC) | 2021 Jan 19 23:27:45.530 |
| Minimum distance | 30.709 km |
| Height difference | -4.513 km |
| Relative speed | 14.273 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 50.8°N, 72.5°W |
| Height | 810 km |
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