| Primary satellite | Secondary satellite |
| Name | Transit 2A Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 47 | 29843 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 08 12:26 | 2021 Mar 08 08:23 |
| Time of closest approach (UTC) | 2021 Jan 26 05:38:41.531 |
| Minimum distance | 13.792 km |
| Height difference | -0.444 km |
| Relative speed | 13.084 km/s |
| Angle between velocity vectors | 124° |
| Geographic position | 66.2°S, 34.6°W |
| Height | 860 km |
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