wiki:NightOperations/Commissioning/Plans/20180928

Parts Borrowed From 20180726

Priorities

  • Closed dome engineering tests (many of which can be done at OPS
  • Twilight tests
  • Open dome engineering tests
  • Science targets
  • Long cals

Closed dome engineering tests

Measure the position of the BIB IFU center

Purpose: We want to know the center of the BIB IFU for the tests that are needed involving the BIB

Procedure:

  • Open the PFIP shutter
  • insert the FCU
  • select a lamp and fiber combination to get good flux in the BIB. Be sure to open the FCU shutter with a decent exposure time.
  • Save some BIB images.
  • Using ds9 measure the center of the IFU. This can be done with circle markers and then looking at the marker info.
  • be sure the last results are saved under "old results on the wiki"
  • update the wiki value for the BIB center.

Testing of the HPF-ACAM IFU positions

Purpose: We want to know if the angle for guiding has changed on the HPF ACQ and the centers for setting up when doing HPFACQ regular setups.

Procedure:

  • Open the PFIP shutter
  • insert the FCU
  • select a lamp and fiber combination to get good flux in the HPFACQ. Be sure to open the FCU shutter with a decent exposure time.
  • Save some HPFACQ images.
  • Notify Joe Ninan that the images have been saved and what the image name is.
  • Measure the position for the center of the HPFACQ direct field
  • Update the wiki and the code regularhpfsetup and inform Randy of the new position for the marker file.

To measure yourself:

  • Using ds9 measure the center of both IFUs. This can be done with circle markers and then looking at the marker info. You will need to play with the scale to get the off axis one to look like a circle due to the coma of the camera.
  • be sure the last results are saved under "old results on the wiki"
  • update the wiki value for both IFU centers.
  • Note how much rotation is required from the central one to the new off-axis position and this is the delta angle to report to the TCS team.

Twilight

Standard science twilights

LRS2 and VIRUS twilights should be taken at the center of track position. Please follow the start of the night procedures on the wiki.

Creating new Guider flats

Take Guider B, g, r, i, none twilight flats for both gc1 and gc2. These can be started at the same time as the LRS2 or VIRUS twilights are going.

Procedure:

  • Start with filters B, g, r, i and then none
  • Take 5-10 images with 30k flux in the IFU (with RAW counts no need to have processing on).
  • Follow the script XXXX to reduce the flats (TBD)
  • Install the flats and any changes to the bias regions to /opt/het/hetdex/etc/configfiles/flats
  • Restart pas and the gui
  • Look at the guiders and see if the bad fibers are removed by the flat...
  • If all looks good inform the TCS team to save the flats to svn.

Dome Open Tests

Test the WFS focus and theta-phi

Purpose: Make sure that the WFS1 and WFS2 still produce good results.

Procedure:

  • Setup on a star with a guide star in GC1 and GC2 and good WFS stars in both WFS.
  • Get to best focus and best theta and phi with one of the WFS.
  • Make sure that the WFS corrections agree within <0.04 mm in focus and <10" in theta and phi
  • Move out of focus (above and below) by ~0.10 mm.
  • Look at the images on the guiders and see if there is any significant coma
  • Look at the images and make sure they are about the same size, ie. we are at best focus.

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 every night and 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

check the offset from LRS2-B to LRS2-R

Purpose: See what the offset is to get accurately from LRS2-B to LRS2-R position on the ACAM. This need not involve the LRS2 instrument at all but does require that we have the new updated LRS2-B and LRS2-R ACAM positions.

Procedure:

  • Setup on LRS2-B ACAM position
  • Take a final ACAM position to confirm we are in the right place.
  • offset from B to R using mgp
  • Take an image with ACAM and see if we are in the right place.
  • Have the TO offset from the current star position to the ideal position and take note of the offset size.
  • move back to LRS2 B
  • try a modified mgp poff command with the old offset + correction.
  • repeat until it works
  • try the oposite offset and see that it works from R to B.

Try this with another star to confirm.

Do LRS2-B/R dither observation of a flux standard

Procedure:

  • TO sets up as usual for LRS2-B or LRS2-R
  • Offset the final position with a syscmd -T 'Guider1_offset_fiducial(dx_asec=-0.635,dy_asec=0.0,compensate="true")' or syscmd -T 'Guider2_offset_fiducial(dx_asec=-0.635,dy_asec=0.0,compensate="true")'
  • Add -dither to any vlexp command
  • Observe the standard with good flux
  • Notify Greg and het-operations that it was taken and which observation it was.

HPF regular setup with both GC1 and GC2

Purpose: Sometimes the GC1 or GC2 can be rotated with respect to the ideal position.

Procedure:

  • Setup with HPF regular setup on a 9-10 mag star using GC1
  • Put in the ACAM and measure the final position compared to the ideal position
  • Setup on the same stars but using GC2 this time.
  • Put in the ACAM and measure the final position compared to the ideal position

Repeat for another star in another part of the sky.

Last modified 6 years ago Last modified on Sep 29, 2018 11:32:48 PM