| Primary satellite | Secondary satellite |
| Name | Cosmos 44 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 877 | 37928 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 May 16 07:28 | 2025 May 12 08:50 |
| Time of closest approach (UTC) | 2025 May 06 00:28:32.477 |
| Minimum distance | 6.055 km |
| Height difference | -5.235 km |
| Relative speed | 14.633 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 46.3°S, 130.6°E |
| Height | 743 km |
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