This wiki page is a guide to use the Differential Image Motion Sensor Using Multiapertures (DIMSUM) instrumentation that was installed to Aux Tel between December 6th and 16th. I am currently writing this as a wiki page to be able to get feedback during the process of documentation. Once everything is finalized I can create a pdf file if requested.
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The SMA threads are 1/4-36. Digikey sells them, part number A104989-ND. Bought 100 of them.
Asked Helen to place this order since credit card failed.
Feb 14 2024 Pachon, Stubbs
Changed optical fiber configuration to have Xenon source feed attenuator module to 600- micron 1:4 fiber then 4 of 200 micron 1:4 bundles. This gives us 16 sources 200 microns in diameter.
I did find one fiber that was flopping/loose in the pegboard, that was presumably the one that showed anomalous behavior in analysis done Feb 2024 by Ali K.
Checked using headlamp that all fibers look comparable.
When running remotely on data collection using gphoto-2 to interrogate aperture worked fine, after power cycling the camera.
But the
./CommunicateTrial.sh
script failed.
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That's better. Tons of flux, tight PSF:
dome is closed and hot.
Will take a stack of images 'by hand' using EOS tools. Starting frame is 0032 on Feb 15 2024.
Frames went 0031-0080 then (weirdly) 0000-0004. Time is 1414 Boston time. Deleted images 0000-0004 to avoid confusion.
So overall this works. We need to figure out how to get gphoto-2 to take an image.
Try just 1 frame from command line. (note card is getting full).
(base) stubbslab@MacBook-Stubbs code % gphoto2 --capture-image-and-download --no-keep
New file is in location /store_00020001/DCIM/100EOS5D/CU2A5983.CR2 on the camera
Saving file as CU2A5983.CR2
Deleting file /store_00020001/DCIM/100EOS5D/CU2A5983.CR2 on the camera
this goes into directory where command was executed. In this case
/Users/stubbslab/Documents/strobed_dimm/code