| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | METEOR 2-8 DEB |
| Spacetrack catalog number | 17974 | 36348 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 18:17 | 2021 Jan 15 06:09 |
| Time of closest approach (UTC) | 2020 Dec 08 20:33:45.293 |
| Minimum distance | 68.392 km |
| Height difference | 2.104 km |
| Relative speed | 8.142 km/s |
| Angle between velocity vectors | 66° |
| Geographic position | 71.1°N, 176.9°E |
| Height | 857 km |
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