| Primary satellite | Secondary satellite |
| Name | Cosmos 841 Rocket | NOAA 16 DEB |
| Spacetrack catalog number | 9023 | 41253 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 22 20:38 | 2021 Jan 22 20:30 |
| Time of closest approach (UTC) | 2020 Dec 03 04:20:53.805 |
| Minimum distance | 11.655 km |
| Height difference | 0.837 km |
| Relative speed | 14.776 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 62.7°S, 2.4°W |
| Height | 789 km |
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