| Primary satellite | Secondary satellite |
| Name | IRS-1C Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23753 | 31201 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Dec 15 19:33 | 2025 Dec 15 14:10 |
| Time of closest approach (UTC) | 2025 Jul 24 18:41:07.543 |
| Minimum distance | 3248.596 km |
| Height difference | 67.133 km |
| Relative speed | 14.449 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 70.4°S, 74.8°E |
| Height | 826 km |
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