| Primary satellite | Secondary satellite |
| Name | Cosmos 841 Rocket | IRIDIUM 169 |
| Spacetrack catalog number | 9023 | 43926 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 16 12:52 | 2021 Jan 15 14:22 |
| Time of closest approach (UTC) | 2020 Nov 30 23:49:45.892 |
| Minimum distance | 25.552 km |
| Height difference | 7.425 km |
| Relative speed | 13.620 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 64.8°N, 104.6°W |
| Height | 766 km |
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