γ-ray light curves of 3C   345 and NRAO   512 for the first 20 months of Fermi-LAT monitoring, obtained through fitting two point-source model components with power-law spectra to the region of interest placed at the respective counterpart positions. Values were determined from integrating observations over 30 days within an energy range of 0.1 − 300 GeV. Blue filled circles are values obtained for 3C   345, red open circles are values for NRAO   512. Values with downward arrows represent 2σ upper limits shown in place of detections with low significance (TS  <  5). The dashed lines plot the respective 20-month average γ-ray source flux. Errors are statistical only.