Projection effects of the quiet-region EUV jet for multiple instruments. (a) SDO/AIA 171 Å with a small jet enclosed by the dotted box. (b) SolO’s EUI/HRI_EUV 174 Å of the same region. The three-color half-circles are meant to show the projection effect. Model loops are constructed in the disk center and projected back to the two locations. Other images in the small FOV around the jets shown in (c)–(e) include a tilt-adjusted EUI/HRI_EUV 174 Å (c), the SDO/AIA 171 Å (d), and Hα wing ±0.8 Å images ((e) and (f)). As a reference, we overlay the outline of the AIA 171 Å profile (blue contour from (d)) on other images ((c), (e), and (f)). A composite image of the Hα blue wing image (gray scale) and EUI/HRI_EUV in yellow color shades (g) shows different morphologies. The observation time of AIA and GST is delayed by 4.5 minutes from that of EUI/HRI_EUV.