Maps of the NPBS flux sensitivity for the sky above 39° of declination in the ecliptic frame. Top: flux map corresponding to the minimum expected S/N for sure detection. Bottom: flux map corresponding to the minimum expected S/N for detection depending on the scintillation effect. Green diamonds represent the detected known pulsars and red crosses the not detected known pulsars. Pulsars marked by a circle correspond to those with an expected S/N between 4.8 and 11.1.