Animation of the transit of Jupiter's Great Red Spot on 16th March 2004. 6" Maksutov Newtonian with 3X Barlow. Seeing poor to average. By measuring individual frames, and calibrating my PC's clock, I conclude that the GRS crossed the central meridian at 2158UT +- 2 minutes. Note Io coming out of occultation and moving W in first few frames. Click on the image to see the animation. (Note file size is 560 kbyte):
