Distribution of the minimum and maximum frequencies (in MHz) and intensity (in dB above the background) of the Jovian DAM emissions on the NDA/Routine catalog as a function of γ (separately in the two hemispheres – a and b) and R (c), respectively. When γ → 0°, Jupiter is observed during daytime. Strong RFI and a high ionospheric cutoff frequency prevent detection below 15 to 20 MHz. When γ → ±180°, Jupiter is observed during nighttime. Weak RFI and a low ionospheric cutoff frequency allow detection down to ~10 MHz. The dashed red lines indicate the thresholds defined for the emission selection, at 20 MHz for the emissions from the Jovian southern hemisphere, at 25 MHz for the ones from the northern hemisphere, and at 8.8 dB for all the emissions.