| Primary satellite | Secondary satellite |
| Name | Tiros 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 29 | 31963 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 16:32 | 2020 Dec 30 23:57 |
| Time of closest approach (UTC) | 2020 Nov 28 12:49:11.519 |
| Minimum distance | 33.708 km |
| Height difference | -0.730 km |
| Relative speed | 14.569 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 21.5°S, 26.2°W |
| Height | 660 km |
|