Swift-BAT (15–50 keV) light curve (blue circles) and Fermi/GBM pulsed flux measurement (red plus signs) and non-detections (red inverted triangles). The two count rates have been approximately scaled using the BAT and GBM nominal collecting areas and energy ranges for plotting convenience. The black squares show the 3–79 keV NuSTAR count rates measured in Observations I and II. The count rates have been corrected by the NuSTAR pipeline for detector losses. The slight increase in the NuSTAR count rates cannot be confirmed from by averaging the Swift-BAT light curve over the NuSTAR observations due to the lack of sufficient statistics.