| Primary satellite | Secondary satellite |
| Name | Cosmos 1674 | FENGYUN 1C DEB |
| Spacetrack catalog number | 15944 | 33624 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 05 11:14 | 2023 Nov 29 19:09 |
| Time of closest approach (UTC) | 2023 Oct 04 09:46:51.755 |
| Minimum distance | 105.730 km |
| Height difference | -21.508 km |
| Relative speed | 15.360 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 41.6°S, 64.6°W |
| Height | 480 km |
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