A system, a method, and a computer program product for determining a position of a collimator component of a radiation delivery device. Starting and ending times of an image generated by the radiation delivery device are synchronized with a radiation treatment plan executed by the radiation delivery device. The starting and ending times define a period of time when the generated image was acquired. Based on the synchronized starting and ending times, a predicted characteristic of the image is compared to a measured characteristic of the corresponding measured image. The predicted characteristic is determined by the radiation treatment plan. Based on the comparison, a position of the collimator component is determined. The determined position of the collimator component is compared to the radiation treatment plan and/or treatment log. The synchronized starting and ending times of the generated image are then adjusted.
