| Primary satellite | Secondary satellite |
| Name | IRS-1C Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23753 | 32106 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 11 14:30 | 2021 Apr 11 18:11 |
| Time of closest approach (UTC) | 2021 Mar 09 08:45:37.533 |
| Minimum distance | 31.839 km |
| Height difference | 0.111 km |
| Relative speed | 14.662 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 24.8°N, 152.0°E |
| Height | 808 km |
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