In a radiographic imaging apparatus capable of performing a first imaging in which radiographic imaging is performed with a first X-ray dose and a second imaging in which radiographic imaging is performed at a second X-ray dose that is less than the first X-ray dose, the timing corresponding to a particular phase of a periodically moving organ as a subject to be imaged is predicted, and the first imaging performed at the predicted timing and the second imaging performed a predetermined number of times before and after the predicted timing are repeated. Through this repetition, a shift between the timing of the particular phase that is recognized from images acquired through the execution of the first imaging and the second imaging and the predicted timing is detected, and the predicted timing is corrected based on the detected shift.