The ICON FUV instrument is based upon the IMAGE-FUV Spectrographic Imager (SI), flown on NASA IMAGE in 2000.
![](/portals/devicon/Images/FUV/IMAGE-SI.png)
Figure 1. The ICON FUV instrument was adapted from the highly successful FUV Spectrographic Imager (SI) flown on the NASA IMAGE satellite is [Mende et al., 2000c].