Note, see Rubin trip Nov 2022, Stubbs for log for day 1, Dec. 2, 2022.
Dec. 5, 2022
SHWFS
After recharging the battery, the camera now connects fine and can be remotely controlled by the Mac mini. Screensharing on the Mac mini still works. I think we're basically ready to take this on-sky again.
Anemometer
Power supply arrived. The new connections are more secure and the labjack is immobilized in a box. Also, Wouter will try to put this into the CSC in January. But for now we are taking data with the Mac mini.
Example 1 minute of anemometer test data (where I fanned it in the middle). Data is in anemometer_test.db
Now I've started a scan that should last for the duration of the observing run (of course, we can stop and move the anemometer if we want - right now the anemometer is on the table at the edge of the dome, as it was in May). It's called anemometer_2022_DecA.db. Here's an initial look:
Note - the dome is closed right now.
Differential temperature sensor
Also started a run that should last until Friday afternoon, and thus cover the whole observing period. (I will of course check periodically to make sure it's still saving the data.)
Dec. 6
Got a DHCP reservation for the new Mac that will run the DIMSUM:
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.
Also installed globus endpoints on the meerkat and the anemometer Mac mini. Just need to tar the data and then it can be transferred to the RC storage.
Details of the installation of DIMSUM are detailed in Ali's logbook.
Dec. 7
Recovery from internet connection loss
Power was lost on the summit the night of the 6th. It was fixed the morning of the 7th. After it was fixed I still did not have an ssh connection to the anemometer Mac mini and the meerkat temperature probe. I connected a screen + mouse + keyboard to both computers. For the meerkat, I just had to connect and log back in. I did not have to restart the computer. I can ssh into it and it has continuously taken data throughout the whole period. For the Mac mini, it was frozen and I had to restart it. Data taking stopped (when I restarted the computer - it was taking data locally while the wifi was off) and I restarted it, with the new filename anemometer_2022_DecA_2.db. The original anemometer_2022_DecA file was corrupted by the restart, but could be fixed with the command: 'sqlite3 old_file.db .recover | sqlite3 new_file.db'. This dumped the data in the corrupted file into a new file. I then renamed the new file to anemometer_2022_DecA.db
Summit internet access
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
Dec. 8
Took fall training and lockout/tagout training in the morning.
Anemometer and Differential temperature sensor have been taking data pretty typically. Dome was cracked and closed throughout the day depending on the need of the two instruments being installed there.
See Ali's page for updates on the DIMSUM installation.
Dec. 9
See Ali's page for notes on DIMSUM.
Also talked to Patrick and he said we need hose clamps for the differential temperature sensor (which I will pick up over the weekend) and we need to clamp down or move everything else that could move in an earthquake. He said tape isn't okay because it peels off paint, which leads to rust. We'll have to coordinate with Craig to figure out the best way to do that.
Dec. 12
See Ali's page for notes on DIMSUM.
Made a Jira ticket for Ali's laptop to get added to the RubinObs-LHN wifi so he can vpn into the Mac mini.
Talked to Patrick about Parker's flat field illumination system. We tried to take some flats but they were not really properly ingested (issues with headers), and they were just in the red band, and Ali's headlamp was on for part of it. We will try to take a full set tomorrow before LATISS is warmed up so we can practice analyzing it.
Also looked at the PD + Keithley setup. Patrick got the Keithley working over the weekend, but the photodiode is probably wired up incorrectly (it's supposed to be set up for back bias, but there's probably a short). Will take a look when I have a chance.
Dec. 13
See Ali's page for notes on DIMSUM.
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.
Dec. 15
Helped Craig finish the installation of the insulation on the AuxTel chiller lines. LATISS is now back up and running.
Storage
Packaged up the sky spectrograph and put it in the container. Here is my extremely mediocre videos about what's inside (I have another but it's too big to upload), but really it's every component of OSELOTS (including fiber, laptop, power cables, camera, spectrograph components, fish lens and magnetic mount mount) and it's being stored in A04 in the container:
Dome-seeing instrumentation in the main dome
Had a less than five minute visit to the dome (because they were going to start TMA and dome movement soon) to take videos of where dome seeing instrumentation can go. I'm attaching the video here (unfortunately, it seems like at some point I accidentally turned the first video off so it's not complete, but hopefully this + the previous pictures are helpful):
The main thing that I think is missing from the above videos that I meant to include are the baffles that will ultimately cover most of the dome and the catwalks and other struts that are on the dome.
General measurement notes
Restarted differential temperature sensor readings at 3:53 pm. Dome slit cracked for some time (people have been in and out all day). Opening vent window and turning on fan to 25 at 3:55 pm