Four-year soft-band sensitivity map of eRASS in Galactic coordinates (l, b), based on the exposure time map of J. Robrade (priv. comm.) for a continuous Sun-pointing and based on the N_H-map of Kalberla et al. (2005). The two black horizontal curves enclose the Galactic plane (|b| < 10°), which is excluded from our calculation, and the two regions encircled by black curves are our defined ecliptic poles, where the exposure time was set to 20.0ks. The red vertical line in the horizontal color bar shows the average sensitivity (from Table 2).