| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | Feng Yun 1-1 Rocket |
| Spacetrack catalog number | 17974 | 19468 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 19 19:07 | 2021 Jan 19 20:19 |
| Time of closest approach (UTC) | 2020 Nov 25 03:51:08.612 |
| Minimum distance | 116.916 km |
| Height difference | 0.948 km |
| Relative speed | 14.517 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 64.6°N, 65.3°E |
| Height | 854 km |
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