ISS over Mississippi 20141231 10" f/4.5 Newtonian on an Astro-Physics 900GTO GEM mount Recording time with ISS on sensor: 20141231 (YYYYMMDD) 4:29:29 to 4:31:10 P.M. CST ISS was in the trees before and after the above time. Camera: TIS DBK41 1280x960 color video cam at prime focus on 10" Newtonian FOV = 17x13 arc-min (7mm eyepiece = 18 arc-min FOV on my setup) Software: FireCapture 2.4.06 Beta Input codec: Y800 Output Lossless compressed codec: UtVideo RGB (ULRG) VCM Software: Satellite Tracker v2.5.1 Setup for my 900GTO mount. Telescope- Interface Protocol- LX200 Compatible Options - Preferences - Tracking Factor = 0 Timing Offset (sec) = -1.58 Alignment Adjustment (steps) = 0 Mount: Astro-Physics 900GTO GEM mount: Minimize backlash in Dec and RA Set Mount time as close to the second as possible. A very good polar alignment will minimize corrections due to drift. Focused and ReCal on Vega If you want to start with OTA below horizon in the West pointing above the SW horizon. SW to Zenith to NE with no meridian flip. After Satellite Tracker connects to mount, set mount Keypad ''Meridian Delay'' from 0W to 6W Sun in West at +3 degrees Alt ISS approach from NW Maximum ISS elevation 71 degrees in SW Captured ISS on 900 frames before meridian flip and then trees. Centered with COG (Center of Gravity) in Registax 5. Reduced file size and shortened play time to 3.4 seconds in VirtualDub v1.10.4 with video-frame rate-Process every 24th frame Got enough frames this time to see the ISS rotate. The ISS passed by me on my right, their left. You see the front-left of ISS on approach. You see the bottom-left at max altitude of 71 degrees in SW for this pass. And finally you would have seen the back-left on departure which was cut short by meridian flip and then trees. Jimmy 33.6N, 88.6W