| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 17974 | 40437 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 24 05:25 | 2021 Jan 23 19:34 |
| Time of closest approach (UTC) | 2020 Nov 29 00:12:20.312 |
| Minimum distance | 43.361 km |
| Height difference | -5.840 km |
| Relative speed | 14.063 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 68.7°S, 56.8°W |
| Height | 850 km |
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