| Primary satellite | Secondary satellite |
| Name | Courier 1B | FENGYUN 1C DEB |
| Spacetrack catalog number | 58 | 29898 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 03 17:26 | 2021 Mar 03 09:55 |
| Time of closest approach (UTC) | 2021 Jan 26 08:49:45.439 |
| Minimum distance | 156.270 km |
| Height difference | 14.925 km |
| Relative speed | 12.163 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 23.8°S, 19.8°E |
| Height | 1156 km |
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