20180201
Priorities
- Engineering tests
Twilight Tests
Note: Twilight exposures are critical science calibrations for LRS and VIRUS and if possible should be done every night that science data is taken.
Testing of the ACAM position
Purpose: We want to see if the ACAM position changes with respect to the IHMP over time. We want this data about once per night and when ever we get an unusually high or low temperature. So for a warm night be sure to do this early and first.
Determine the Center of the BIB:
- Select a 14th mag star in a reasonably rich field with shuffle for the BIB
- Setup on the very center of the BIB field of view and save an image note any differences from the wiki center position.
- Guide on one of the guide probes
- Measure the BIB positions with mlb
- Put in the ACAM and save an shallow image with the target star not saturated.
- Report on the position of the BIB in the night report and on NightOperations/Commissioning/Results
- Save a deeper image which should show more than a dozen stars.
Determine the Center of LRS2-B
- Select a 14th mag star in a reasonably rich field with shuffle for the LRS2-B
- Setup on LRS2-B and start guiding on one of the guiders
- Take LRS2-B spectrum, probably 60 seconds.
- Adjust the position so that the star is at the center of LRS2-B IFU using lmap until the offsets are less than 0.3"
syscmd -T 'Guider1_offset_fiducial ( dx_asec=-0.01,dy_asec=0.55,compensate="false")'
- Confirm the star is at the center of the IFU by taking a spectrum.
- Once it is as the center of the IFU put in the ACAM and take a shallow image so that the star is not saturated.
- Report on the position of the LRS2-B in the night report and on NightOperations/Commissioning/Results
- Take a deeper image so that there are large number of stars.
Determine the Center of LRS2-R
- Select a 14th mag=== Testing of the ACAM position === star in a reasonably rich field with shuffle for the LRS2-R
- Setup on LRS2-R and start guiding on one of the guiders
- Take LRS2-R spectrum, probably 60 seconds.
- Adjust the position so that the star is at the center of LRS2-R IFU using lmap until the offsets are less than 0.3"
- Confirm the star is at the center of the IFU by taking a spectrum.
- Once it is as the center of the IFU put in the ACAM and take a shallow image so that the star is not saturated.
- Report on the position of the LRS2-R in the night report and on NightOperations/Commissioning/Results
- Take a deeper image so that there are large number of stars.
Testing TCS changes and RA software
Test of probe offsetting at the same time
Purpose: The software should allow us to make offsets to any two probes (not the same probe twice) without getting error messages or crashing. The probe moves will act serially but should eventually happen.
Procedure:
- Make a GC1 probe offset move
- Quickly make a WFS1 probe move
- Repeat the test with other probes and changing the order
- Report any errors and what actions lead to that error.
Take your time and make sure you can repeat the error.
Test go_next with probes
Purpose: There was a bug that stopped normal setups with "probes true" from working from trajectory to trajectory. This may be fixed.
Procedure:
- Do a normal setup on a target with all probes activated and moving.
- Cancel the trajectory in a normal way
- Do a different all target setup with all probes.
Test target_setup
Purpose: There is a new version of target setup. Check to see if this is the one installed. If not and early in the night call randy and Jim.
Procedure:
- run the software and make sure it works.
Test iexp script
Purpose: There is a new version of the iexp software. Check to see if this is the one installed. If not and early in the night call Randy or Jim. Sergey should add the "ACM_Stop" to the script to avoid the orphaned metrology loops.
Procedure:
- Run a short (<300 second) LRS2 exposure
- Run a long (>=300 second) LRS2 exposure with parallel
- Run a VIRUS dithered exposure.
Test all functions of the telescope and look for inefficients
Purpose: We are trying to trim setup times. Please look and see if
Procedure:
- Look and see if all cameras turn off properly at the end of track
- Look and see if all cameras turn on properly at the start of track
- See if at the end of iexp or target_setup if there are any commands being executed that could be removed.
HET PSF measurement using the ACAM
Purpose: We would like to get measurements of the PSF far wings by looking at bright stars. We should do this a few times with different stack qualities to see how this changes. Note we should avoid the CCAS tower for this test. Since we are looking for the faint features this should be done when conditions are good and no moon is present.
Procedure:
- Make sure moon is down and seeing is somewhat stable and less than about 1.5".
- Select a 14th mag star with shuffle (avoiding Az 38 - 98 to keep CCAS out of the field of view) on BIB
- Setup on star on the BIB
- Get both guiders going with metrology going and saving images
- Get a WFS going and closed loop (note since the ACAM is in you might have to look at both WFS to get the one without the ACAM obstruction)
- Save 20 images of at least 5 seconds each.
- Note the RSE, time since stack, temp change since stack, tracker x and y, telescope az.
- Stop saving guider images
Repeat this for a few different conditions of the stack: Freshly stacked, RSE = 100, RSE=200, RSE=300
Repeat this for a few different tracker positions: early in track, center of track late in track etc..
Closed dome:
Please do the following if you are closed (in order of priority):
- FeAr 1800s blue x4
- LRS2 dark 1800s x3
- VIRUS 10 x 360s darks
- VIRUS 200 ldls flats
Report that they are done via e-mail to het-operations and also update the cals list: NightOperations/SciencePlans/longcals
See the long cals page for more information:
