| Primary satellite | Secondary satellite |
| Name | Cosmos 1674 | CZ-4C DEB |
| Spacetrack catalog number | 15944 | 44208 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 14 22:37 | 2021 Jan 14 22:01 |
| Time of closest approach (UTC) | 2020 Nov 25 20:47:04.956 |
| Minimum distance | 824.167 km |
| Height difference | 0.207 km |
| Relative speed | 10.535 km/s |
| Angle between velocity vectors | 87° |
| Geographic position | 75.4°N, 165.3°W |
| Height | 510 km |
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