Electron energy flux retrieved from UVS data (solid black lines) and JADE electron measurements (gray dotted lines). JADE data in panel a were acquired during the MAW crossing of PJ 12 (April 1, 2018), while the vertical profile used in the retrieval was obtained by averaging the MAW brightness of PJ 12 and PJ 40 (the latter occurred on February 25, 2022) between −0.5 and 0.5 degrees, using the data from the narrow slit of UVS. The green dashed line is the linear fit to the UVS retrievals. The retrievals with 1σ uncertainty larger than the retrieved intensity were omitted. Panel b shows a comparison among data collected between 3 and 10 degrees. Panel c shows a comparison among data between 10 and 20 degrees.