| Primary satellite | Secondary satellite |
| Name | Transit 2A | FENGYUN 1C DEB |
| Spacetrack catalog number | 45 | 35122 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 08:54 | 2021 Mar 07 07:56 |
| Time of closest approach (UTC) | 2021 Jan 24 06:56:18.049 |
| Minimum distance | 5.885 km |
| Height difference | -5.407 km |
| Relative speed | 11.311 km/s |
| Angle between velocity vectors | 100° |
| Geographic position | 66.2°S, 145.5°W |
| Height | 888 km |
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