| Primary satellite | Secondary satellite |
| Name | Cosmos 1844 Rocket | OPS 4467B |
| Spacetrack catalog number | 17974 | 813 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 16 18:17 | 2021 Jan 16 17:05 |
| Time of closest approach (UTC) | 2020 Dec 06 01:38:34.718 |
| Minimum distance | 6.778 km |
| Height difference | -4.976 km |
| Relative speed | 12.594 km/s |
| Angle between velocity vectors | 116° |
| Geographic position | 71.0°S, 77.4°W |
| Height | 850 km |
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