| Primary satellite | Secondary satellite |
| Name | Cosmos 1674 | FLOCK 4X 2 |
| Spacetrack catalog number | 15944 | 50996 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 05 11:14 | 2023 Dec 05 11:30 |
| Time of closest approach (UTC) | 2023 Oct 03 21:49:08.340 |
| Minimum distance | 151.964 km |
| Height difference | 8.592 km |
| Relative speed | 13.017 km/s |
| Angle between velocity vectors | 117° |
| Geographic position | 81.9°N, 123.6°W |
| Height | 483 km |
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