| Primary satellite | Secondary satellite |
| Name | IRS-1C Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 23753 | 30900 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 12 12:23 | 2021 Apr 09 19:57 |
| Time of closest approach (UTC) | 2021 Mar 01 14:28:05.272 |
| Minimum distance | 7.436 km |
| Height difference | 0.358 km |
| Relative speed | 14.629 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 36.7°N, 103.0°W |
| Height | 810 km |
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