| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 17974 | 40601 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 10:21 | 2021 Jan 23 23:31 |
| Time of closest approach (UTC) | 2020 Nov 30 06:42:27.863 |
| Minimum distance | 77.789 km |
| Height difference | -3.342 km |
| Relative speed | 13.971 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 69.4°S, 153.9°W |
| Height | 850 km |
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