| Primary satellite | Secondary satellite |
| Name | Cosmos 1782 Rocket | GAOFEN 1 |
| Spacetrack catalog number | 16987 | 39150 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 21 21:11 | 2021 Jan 22 03:21 |
| Time of closest approach (UTC) | 2020 Dec 05 06:43:23.512 |
| Minimum distance | 15.322 km |
| Height difference | -1.070 km |
| Relative speed | 14.590 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 82.2°S, 43.6°W |
| Height | 656 km |
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