My ISS webpage created with notepad http://jimmyjujames.com/ My ISS passes on youtube https://www.youtube.com/user/jimmyjujames/videos September 2, 2016, 6:17 A.M. CDT (UT-5) Temperature: 73F Humidity: 80% Dew Point: 67 Sun was -3 degrees above the Eastern horizon. ISS Phase angle = 91 degrees (Sun-ISS-Telescope) A value of 0 indicates full phase, a value of 180 indicates new phase. ISS approached from SW, culminating at 81 degrees altitude in SE at a range of 258 miles. ISS departed to NE This ISS pass was above the trees for about 131 seconds. Collected 576 frames at 18fps with ISS on sensor. Used 541 frames in final avi. Mount: Astro-Physics 900GTO Equatorial Mount GTOCP3 The 900GTO has features that allow me to track the ISS in the daylight. No meridian flip needed at meridian on SW to NE passes that culminate in the East. This ISS approach was from the SW culminating at 81 degrees in the SE, departed to the NE. Set meridian from 0W to 6W (from zenith to Western horizon) Wow! Super Cool mount. Another user said this and I agree, "The mount is so good that you just forget about it during the session." Scope: 10'' f4.5 Newtonian ZWO ASI120mm mono cam at prime focus FOV = 10x14 arc-min Satellite Tracker v2.5.1 Satellite Tracker setup for my Astro-Physics 900GTO Mount with a 10x14 arc-min FOV. Telescope-- Interface Protocol = LX200 Compatible Options-- Preferences-- Tracking Factor = 0 (0 delay between goto's results in about 29 GoTo's per second to mount) I'm under the impression that ascom will not issue a goto until previous goto completes. Satellite Tracker does not wait until last goto finishes. Satellite Tracker sends about 29 goto's to GTOCP3 per second. You will need to change the following 3 options as you change your eyepiece FOV Setup for a 10x14 arc-min FOV Options-- Preferences-- Timing Offset Increments Coarse = 0.5 second Options-- Preferences-- Timing Offset Increments Fine = 0.01 second Options-- Preferences-- Alignment Adjustment Increments = 0.5 step Leave window open until you get all increments correct for your present FOV setup. When you click save, the changes become active immediately. No need to exit and restart. Wiring setup: Laptop#1 Controls 900GTO mount and Joystick 5 foot USB to Serial adapter 15 foot serial cable to top Com port on GTOCP3 on mount USB transceiver for cordless Joystick Laptop#2 16 foot USB cable with 20awg power leads. 5 volts at laptop 4.84V at ZWO ASI120mm mono cam Cam at prime focus on 10'' F/4.5 Newtonian. 10x14 arc-min FOV Laptop#3 16 foot USB cable with 20awg power leads. 5 volts at laptop 4.84V at TIS DBK41AU02.AS color cam Cam at prime focus on 280mm F/4.67 finder scope 53x70 arc-min FOV RoboFocus: Firecapture v2.5.07Beta captured ISS as avi movie. ZWO ASI120mm mono cam 1280x960 Gain = 29 Shutter speed = 1.950ms 17 fps 10x14 arc-min FOV Procedure: Set both Laptop and 900GTO mount clocks to within 1 second. Focused and ReCal'ed on Aldebaran Satellite Tracker: Click "Connect" button to connect to 900GTO mount. On 900 Keypad set Meridian from 0W to 6W. Must be done after connect to mount. I think the connect to mount resets meridian back to 0W if it was at 6W before connect. Counter weights above horizon in the East Scope on West-side pointing above the SW horizon. The ISS approach is from the SW. Clicked the Start Tracking button after ISS moved above Dec = -10 (SW tree tops) Only 4300 characters allowed in YouTube description. More info on website under "How I did it" My ISS webpage created with notepad I pronounce site as Jimmy J. U. James.com http://jimmyjujames.com/ My ISS passes on youtube https://www.youtube.com/user/jimmyjujames/videos Jimmy Andrews 33.6N, 88.6W Waiting for ISS to move above trees ( Dec = -10 at 37 degrees alt) Here is where a good polar alignment is necessary with a 10x14 arc-min FOV On a Good-Day after pressing the "Timing Offset Coarse" button 1 to 6 times, I see the ISS move through the Cam FOV. Then I click the "Timing Offset Fine" button in the opposite direction and hold the ENTER key down until the ISS is back on sensor. Today's morning daylight pass was still dark enough to see the ISS on Finder scope Cam. Centered ISS on finder Cam and became visible on 10'' Newtonian. Adjusted brightness. After ISS is on sensor, switched from Buttons to Joystick control An accurate polar alignment will result in less joystick corrections. Post Processing: Virtualdub removed blank and partial frames Manually aligned avi in Regestax5, saved as 512x512 Closed and re-started Registax51 Opened new 512x512 avi into Registax5, Auto-Aligned and saved as 256x256. Closed and re-started Registax51 Opened new 256x256 avi into Registax5, Auto-Aligned and saved as 128x128. Too jittery Closed and re-started Registax51 Opened new 256x256 avi into Registax5, Manually aligned and saved as 128x128. VirtualDub deleted poor frames and set final playback fps. TLE used by SatelliteTracker ISS 16245.9085 ZARYA 1 25544U 98067A 16245.90852106 .00003395 00000-0 58001-4 0 9997 2 25544 51.6457 35.2106 0002625 276.1878 219.5058 15.54368876 16922 Quicksat.exe output *** 2016 Sept 2 Fri morning *** Times are AM CDT *** 20 3 543 H M S Tim Al Azi C Dir Mag Dys F Hgt Shd Rng EW Phs R A Dec 25544 ISS 348 -2.0 6 17 33 68 202 335 -3.2 -1 3 255 246 274 3.2 75 338 12.9 6 17 34 68 202 336 -3.2 0 3 255 246 274 3.2 75 338 12.9 6 17 34 68 202 336 -3.2 1 3 255 246 274 3.2 75 338 13.0 6 17 34 68 202 335 -3.2 0 3 255 246 274 3.2 75 338 12.9 6 17 53 81 137 C 271 -3.1 -1 3 255 251 258 3.4 91 438 26.6 6 17 54 81 137 C 272 -3.1 0 3 255 251 258 3.4 91 438 26.6 6 17 54 81 137 C 272 -3.1 1 3 255 251 258 3.4 91 438 26.7 6 17 55 81 137 C 271 -3.1 0 3 255 251 258 3.4 91 438 26.7 6 18 13 69 69 205 -2.8 -1 3 255 254 273 3.0 108 554 38.3 6 18 14 69 69 205 -2.8 0 3 255 254 273 3.0 108 554 38.4 6 18 15 69 69 205 -2.8 1 4 255 254 273 3.0 107 554 38.4 6 18 15 69 69 204 -2.8 0 4 255 254 273 3.0 108 554 38.4 Thum Temperature sensor output Line, "Measure Time", "MonitorID", "MonitorName", "Temp", "RH" ,"DewPt","Unit","Alarm", "HeatInd" 3632, 9/2/2016 6:17:40, 1.00, "Astro-Physics 900GTO", 73.30, 80.86, 67.07, "F", 0, 0.00 My ISS webpage created with notepad. I pronounce the site as Jimmy J. U. James.com http://jimmyjujames.com/ My ISS passes on youtube https://www.youtube.com/user/jimmyjujames/videos Jimmy Andrews 33.6N, 88.6W