Multi-wavelength light curve of PKS 0048−097. Panels from the top to the bottom show the radio observations from the OVRO telescope at 15 GHz; optical (KAIT and Catalina) monitoring in R and V band, Swift/UVOT data in V, B, U, UVW1, UVM2, and UVW2 filters, X-ray observations with Swift/XRT, and Fermi/LAT flux (E> 100 MeV). The horizontal dashed lines in all the panels represent the average flux for all observations presented here. In all the cases (excluding Fermi/LAT data) each point corresponds to one night of observations; for the case of Fermi/LAT monitoring data are binned in week-long intervals. In the Fermi/LAT light curve, flux upper limits are represented with grey points. The time periods corresponding to A and B flares are marked in grey, while the quiescence period Q is plotted in blue.