SN2014J signal intensity variations for the 847 keV line (above) and the 1238 keV line (below) as seen in our observations and shown in Fig. 3. Here the intensity was derived by Gaussians fitted to the spectra near the respective ⁵⁶Co line at four independent epochs, as discussed in the text. The epochs are shown as horizontal bars at each data point. For reference, several candidate model light curves are shown, as extracted from The & Burrows (2014).