1. A method comprising: receiving sensor data configured to describe a geographic position of a mobile device; accessing a list of events of interest from a memory, wherein at least one entry of the list of events includes a predetermined position and a predetermined time; comparing the geographic position of the mobile device to the predetermined position of the at least one entry in the list of events of interest; comparing a current time to the predetermined time of the at least one entry in the list of events of interest; selecting an event from the list of events of interest in geographical range of the mobile device at the geographic position of the mobile device and temporal range at the current time; and generating a command to capture an image of the selected event.