I flew in the back seat of a Phantom back in the 70's and 80's. The RF-4C was stuffed with cameras and sensors. When we went on a missions, if the INS navigation system was within 7 miles, they didn't bother to calibrate it. My how things have changed.
With a top speed of Mach 2.2 (about 0.5 miles per second at sea level), 7 miles is about 15 seconds!