| Primary satellite | Secondary satellite |
| Name | deb Explorer IX | FENGYUN 1C DEB |
| Spacetrack catalog number | 85 | 29845 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 03 12:58 | 2021 Mar 03 08:01 |
| Time of closest approach (UTC) | 2021 Jan 22 13:03:11.136 |
| Minimum distance | 504.372 km |
| Height difference | -18.432 km |
| Relative speed | 10.090 km/s |
| Angle between velocity vectors | 85° |
| Geographic position | 36.9°S, 87.0°W |
| Height | 834 km |
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