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• Mounted the camera using two clamps and an L rail. Clamped the L rail to the orange rail shown in DIMSUM presentation. The camera is stable in the vertical direction, but it is moves very easily in azimuthal direction. Currently this helps adjust the camera angle but we need a solution for the long term. The video clip shows that the camera is not affected by the rotation of the dome.
  

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• Mounted the pegboard to the railing and camera is in the same plane with the pegboard. It can see everything. We may need further stabilization of the pegboard on the other direction to avoid the tilt. The camera can see the entire pegboard without any barriers. It is a decent height above the ground. Attached below are the pegboard, the tilt, and how the camera sees it.
  

Day 3: 12/08/22:

• It was a day of unexpected problems. The telescope rotated and hindered the view of the camera and the angle. Craig had told us such a degree of rotation would not happen.
• The instability of the camera makes it rotate in small disruptions which is a significant problem. I did some trials to see if the vibration caused by taking high speed pictures rotated the camera. Two runs of high speed pictures (22 pictures) did not seem to affect it. However, it may cause the same problem as the last time as Clay. In an hour of data taking and in the 1000'th photo, it may end up causing a significant shift and wrong differential image motion measurements. The picture below is the shifted and obstructed pegboard and camera when I looked at it first thing in the morning. The top left corner is affected.
  Image Added
• Looking at this. It different than the photo from the Yesterday's log. I noted this issue down and attempted to fix in the afternoon.
• For the rest of the morning, I checked whether the camera was able to take pictures of flashlights and how did the sources look like. I will attach the Jupyter Notebook as well.
  • Sources looked compact (not as bad as the Clay Telescope hot air gun sources) but there were apparent ghosting effects. I checked whether the ghosting effects were significant or just an artifact of the colormap. When I plotted the values of the row of the actual sources it was Gaussian with peak 3598, and the when I plotted the row of the ghost it was also a gaussian with peak 1100. That is a very close.
  • We checked if:
    • The tilt of the pegboard was causing different focus throughout the shot because of the slight variation in distance. Turns out not and the small tilt actually puts the camera and pegboard in the same plane. I checked the focus in two ways:
      1. Zooming in on the sm1 light sources across the pegboard and see if they are blurry.
      2. Zooming in on the circles of the pegboard and see if they are circular.
      3. Both of the outcomes could be better but it was as good as the time I get decent sources in Clay telescope.
      4. Image Added
      5. I note that the pegboard does not seem fully perpendicular on the screen. Elana and I had decided it was not the biggest of our problems.
    • The second possibility of ghosting was that the fibers were not tight enough with the SM1. To address that issue, I switched one of the SM1 sources with a plain bolt Elana used when she did this experiment. The sources were identical. So it was not a problem of SM1's. This makes sense because SM1's properly tight. However, this may require a recheck. Attached below is the SM1 and the bolt next to it, they are at the top left. Also this shows the obstruction more clearly:
      Image Added
• In the afternoon, we decided that the camera being very free to move and obstructed by the telescope was not okay. First we changed the location of the pegboard. That was a fairly easy fix. New location of the pegboard with optical fibers. It is one rail below than the picture in previous day. The reason we are not using the rectangular rails rather than the circular ones that they ended up being more stable with the clamps.
  Image Added
  I could not take a picture of the unobscured view because a new problem arose.
  

The new problem: Camera does not take a picture of the flash sources anymore

Stubbs comments- 

This looks like great progress, bravo. We need to be sure the cables and other elements are not trip hazards, and so I suggest running them under the grating floor somebow. Also the camera isn't pointed quite in the direction I was expecting but I'm sure you guys have that figured out. Finally, we need to be sure we aren't obstructing the new in-dome illumination system that Patrick and Parker are installing. 
Happy to arrange a time to talk over zoom tomorrow if you like. 
 

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