Comparison between the Ne VIII 77.04 nm profiles before (top) and after PSF deconvolution (middle) or “skew” correction (bottom) near the eastern upflow region. Panels (a), (d), and (g) show Ne VIII line intensity. Panels (b), (e), and (h) show Doppler shifts. Panels (c), (f), and (i) display spectra along the dashed vertical lines in other panels, respectively. Regions potentially affected by spurious velocity signals are highlighted by circles. Link to the Jupyter notebook creating this figure: 📘.