If it ain't broke, don't fix it.

I think I clearly understood that after getting data on this target. When I upgraded the focuser, I said to my myself, now is the chance to switch to OAG and the QHYFW. Little did I know it will send me into an endless loop of opening and closing the imaging train and shooting flats (11 total, 7 for Mode 0 and 4 for Mode 3, yikes!). In the past 7 days, I think I may have shot a set of flats almost every day. 

Even though the OAG as pushed all the way up, I ended up getting reflections and it resulted in me flipping the filters. Reflections still remained, so this time around I ended up taking the FW adapter and flocking all the slots, both ends of the filter wheel openings and testing with new flats. Everything appeared good in the end, but it took my few days as I was reluctant to disturb my pretty little setup. If the last attempt did not work, I had the guide scope and the old filter wheel ready to go. 

In the middle of all this, TX became an oven 24/7 and the cam simply didn't cool down to -5. One night it took until 1am to get to temperature and after talking to Anis, I shot zero-degree darks and the cam cooled decently since then at the start of a session. Byproduct was, I introduced a dust right smack in the middle of the optical glass, oops! And the next set of subs did not calibrate well. I was literally at my wits' end for being careless especially with a RGB target.

Plus, I found I could not switch modes in Nina using the SDK driver as I thought, so had to go back to Mode 0 - 5 minute subs as it has been windy as well. 

Processing the data was not super hard as I knew what to expect. Except that I noticed a hole like artifact on slightly off center on the top portion. No issue, new flats (all 11 of them). Shot some more L and next morning, hole remained even for 2.5h L. Went on AB to check and ran into Anis' version and after cross checking it appeared that area does have a contrast drop in the shape of a hole. I should have done that first instead of running to the backyard and bringing the scope in for new flats. 

Other than vdb152, the mushy thing near it and the Ha signal, the rest of the dust did not have a whole lot of structure. The ghost like structure (LBN515) towards the left reminds me of Orko from the He-man comics. Maybe if I sat on it for another 20-30h L, it may resolve better. But this will do for now. I am happy I have a setup that works. 

I will get to the backspace/tilt portion fairly soon as I ran into it taking apart and putting the train back together with test subs, but decided to work on it in the coming weeks. 

Hope you like this result. Clear skies!