20180122
Twilights
HPF, LRS2 and VIRUS twilights should be taken at the center of track position. Please take them back to back as quickly as possible.
Priorities
- Any 19-1 science or engineering targets (remember that mPri algorithm is still suspect - try to prioritize W targets if anything)
- High priority On sky engineering tests (during queue holes)
- Closed dome engineering tests
- Long cals
High Priority On sky Engineering
Integral Term test during dithered observations
The idea is to test the updated guiding parameters during a VIRUS dither. This test should take less than 15 minutes.
For this test, try an integral term of 0.2 and principle term of 0.8
Previous testing around Az=240 has revealed large deviations in the past; we want to test Az=240 as well as a few other azimuths.
Procedure:
- Select a field to setup on at Az 240 starting at the start of the track.
- Setup on the field. Note we must have 2 guide stars and at least 1 wfs star.
- Guide on Guider2 (since guider1 may still be glitchy)
- exposure times on the guiders needs to be >5 seconds.
- set the guiding loop parameters to principle 0.8 and integral 0.2 with: syscmd -T 'Guider2_tune(kd=0,ki=0.2,kp=0.8)'
- save ACAM, guider1, guider2, wfs star images for the entire track.
- Note the time when things are stable and collect ~5 minutes of data.
- Start a VIRUS dither exposure sequence (can be short exposures at each position)
- report this data has been taken in the RA log with the start and end times and send e-mail to Jason as well.
Then repeat this test at 3-4 additional azimuths, as possible
Tracker drift test
The idea is to further test the guiding parameters that we've been tweaking so far. In particular, we want to compare:
Option 1: integral term of 0.2 and principle term of 0.8
Option 2: integral term of 0.1 and principle term of 0.9
Previous testing around Az=240 has revealed large deviations in the past; we want to test Az=240 as well as a few other azimuths.
Procedure:
- Select a field to setup on at Az 240 starting at the start of the track.
- Setup on the field. Note we must have 2 guide stars and at least 1 wfs star.
- Guide on Guider2 (since guider1 may still be glitchy)
- exposure times on the guiders needs to be >5 seconds.
- save ACAM, guider1, guider2, wfs star images for the entire track.
- Note the time when things are stable and collect ~8 minutes of data.
- Note the time, deactivate the Guide loop, Stop the guide loop.
- set the guiding loop parameters to principle 0.9 and integral 0.1 with: syscmd -T 'Guider2_tune(kd=0,ki=0.1,kp=0.9)'
- Start the guide loop and activate the guide loop.
- Note the time when the things are stable and collect 10 minutes of data.
- Note the time and set the guiding loop parameters to principle 0.8 and integral 0.2 with: syscmd -T 'Guider2_tune(kd=0,ki=0.2,kp=0.8)'
- Note the time when things are stable and collect 5 minutes of data.
- report this data has been taken in the RA log with the start and end times and e-mail to shetrone as well.
Then repeat this test at 3-4 additional azimuths.
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 when ever we get an unusually high or low temperature. It would be good to vary the Az as well.
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
- 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.
Determine the Center of the HPFACQ IFU on the ACQ:
- Select a 9-10th mag star with shuffle for the regular setup (600)
- Setup on the very center of the HPFACQ field of view and save an image.
- Guide on one of the guide probes and make sure that the star is still at the center of the HPFACQ
- Put in the ACAM and save an shallow image with the target star not saturated.
- Report on the position of the HPFACQ regular setup in the night report, on the markers wiki page and on NightOperations/Commissioning/Results
Back to back flux standards on different IFU
The idea is to tie the standards we are taking on different IFU slots. Near the center of track on a fairly photometric night observe in the 022 and then the 046 IFU slots. Avoid Az 40 - 95 because of the impact of the CCAS power.
Procedure:
- Select a VIRUS spectrophotometric flux standard
- Setup on a flux standard for IFU slot 022 about 15 mintutes before the center of track. Use target_setup -cat spc -ifu 022 Indexnum {E|W}
- observe this flux standard for at least 1 minute on each dither
- if you have not taken a VIRUS flux standard for this night mark this as a flux standard.
- Setup on the same flux standard for IFU slot 046. Use target_setup -cat spc -ifu 046 Indexnum {E|W}
- observe this flux standard for at least 1 minute on each dither
- mark this as an engineering target and charge the time to engineering time of type ENG18-2-004
Closed dome engineering:
ACAM insertion test
The purpose of this test is to see how ACAM insertion test is doing with specific interest in cold temperature performance.
Procedure:
- run the acam insertion test as described in the RA OPS page.
Long cals
Please do the following if you are closed (in order of priority):
- VIRUS 10 x 360s darks
- LRS2 dark 1800s x3
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:
