| Primary satellite | Secondary satellite |
| Name | deb Explorer IX | FENGYUN 1C DEB |
| Spacetrack catalog number | 85 | 30802 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Apr 16 12:21 | 2021 Apr 17 02:16 |
| Time of closest approach (UTC) | 2021 Mar 04 22:36:49.657 |
| Minimum distance | 119.089 km |
| Height difference | 5.206 km |
| Relative speed | 7.623 km/s |
| Angle between velocity vectors | 62° |
| Geographic position | 10.2°S, 23.8°W |
| Height | 819 km |
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