Note, see Rubin trip Nov 2022, Stubbs for log for day 1, Dec. 2, 2022.
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auxtel-macmini03.cp.lsst.org
139.229.164.205
It can now connect to the RubinObs-LHN wifi and it's possible to ssh into the computer.
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Also, got Ali access to the summit guest wifi. Specifically, we had to fill out the onboarding form (from Diego):
This is the Summit Onboarding Procedure. Here you will find instructions to access various services in Rubin, including WIFI: https://ittn-045.lsst.io/
The onboarding form can be found here: https://project.lsst.org/visiting-the-summit/network-access
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Attempted with Patrick supporting remotely to get the new AuxTel flat field illuminator working. Unfortunately, we had massive issues first with the CSC (not getting the arc lamp to turn on), had to switch to manual mode, and then had issues with the script creation for flat field, and we weren't able to solve all of them before I had to catch the bus. Patrick will work through them when he's back in the US, and we'll take flats when LATISS warms up again in January. However, I do now have credentials such that I can move AuxTel and the dome (and possibly the main telescope, I suppose).
Dec. 14
Photodiode
Worked on the photodiode readout setup so we can get a sense of how dark the dome is during the day. The CSC isn't configured to be able to produce a voltage yet, so we wired up the photodiode with the one Triax cable we had (a test one that has three banana clips) and clamped two of them (green and black) to banana clips going to the anode of the photodiode and the red one to the cathode, and taped them with electrical tape. This is a pretty janky setup. So I gave Kevin Reil the part numbers to order good Triax BNC adapters (Keithley 7078-TRX-BNC) and we will just use a BNC to connect the photodiode to those adapters when they arrive.
But with this setup and the CSC I read out continuously starting at 5:26pm until ~9:00pm in 30s intervals.
I had to set the range to 2 mA because it was bright at the beginning. But here are the last plots (plotted every 6 minutes) before we had to close the shades at 8:51 pm because the sun had set.
After closing the shades the photodiode just read 0. When I changed the range to 2 uA, I got the following:
The notebook used for these measurements is called electrometer_for_ChrisW.ipynb
A few notes on the CSC:
- It's not writing enough digits to the LFA
- There are a lot of bugs in this CSC. It frequently has to be restarted or the Keithley has to be sent to standby and enabled multiple times
- Not all the commands that are supposed to work work.
That said, I think once the new cable adapter comes in we can put this in the main dome and do readout and we will be able to figure out what the daytime background light level is.