| Primary satellite | Secondary satellite |
| Name | Tiros 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 29 | 36203 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 11:16 | 2021 Jan 16 05:36 |
| Time of closest approach (UTC) | 2020 Dec 04 00:03:27.028 |
| Minimum distance | 34.116 km |
| Height difference | -4.283 km |
| Relative speed | 14.303 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 27.8°S, 2.1°E |
| Height | 639 km |
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