| Primary satellite | Secondary satellite |
| Name | Tiros 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 29 | 32123 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Dec 16 04:56 | 2025 Dec 16 08:23 |
| Time of closest approach (UTC) | 2024 Nov 12 05:14:45.934 |
| Minimum distance | 3954.690 km |
| Height difference | 184.419 km |
| Relative speed | 14.918 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 48.2°S, 57.4°E |
| Height | 635 km |
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