| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | METEOR 2-5 DEB |
| Spacetrack catalog number | 17974 | 28973 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 18:17 | 2021 Jan 14 00:03 |
| Time of closest approach (UTC) | 2020 Dec 06 21:48:27.595 |
| Minimum distance | 22.169 km |
| Height difference | -4.910 km |
| Relative speed | 13.806 km/s |
| Angle between velocity vectors | 136° |
| Geographic position | 49.7°S, 82.8°W |
| Height | 844 km |
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