wiki:NightOperations/Commissioning/Plans/20161030

20161030 Commissioning Plan

Priorities for test are in the order listed in the plan below. NOTE: The DMI should now be run for every trajectory with a 10 second interval time.

Highest Priority: Engineering; do any support for Hanshin or Randy in support of Hanshin.

Lowest Priority: Science and HETDEX engineering

Closed dome engineering for bad weather, or while stacking:

Long VIRUS darks

Purpose: In each RA run take 10 x 6 minute dark with a dark dome with VIRUS. Report this in the RA report and send e-mail to Karl that this has been done.

Closed dome trajectories

Purpose: Exercise the system to find any problems with the upgrades recently done to TMCS and TCS.

Procedure:

  • Send a trajectory from do_shuffle
  • Setup on trajectory, including moving all guide probes to position
  • Put one some light in the dome
  • Run all cameras.
  • Run pipelines for WFS
  • Make offsets on all guiders and ACAM.

Repeat multiple times during the night as long as the weather does not allow you to open. Report any problems with shuffle or TCS.

Twilight Tests

twilights with VIRUS with different tracker positions

Purpose: There is some interest in seeing what the long term illumination correction changes look like including what different track positions do to them. The script is "specialtwilight" in /home/mcs/astronomer/bin/. It takes a single argument which is the Observation number.

Procedure:

  • Setup the guide camera for sky twilight (GC2, 0.1 sec, B filter)
  • When you hit the correct flux level (biased to a slight higher value, perhaps 5k) execute the specialtwilight script

On-sky engineering:

Calibration of OWFS using either CWFS or DWFS8

Purpose: We want to calibrate the OWFS using DWFS8 or CWFS (depending on what stage of the testing we are in, Feedback from Hanshin) on a sidereal trajectory at one of the following Az:

a normal star for Az 234, 292, 0

  • setup on an 11 mag star on the IHMP
  • move all 4 guide probes to the correct RA and DEC positions from gstar or shuffle. NOTE: because of he recent FPA work you might need to alter gstar or use shuffle_config_matt2
  • save probe positions in the RA log with /home/mcs/astronomer/caldwell/shoprobes
  • If the test is to use DWFS8 then skip this step otherwise offset telescope and probes by the amount to get to CWFS: syscmd -T 'offset_trajectory(dx_ang=-5.5, dy_ang=-1.0, adjust_probes="true")'
  • move the guide probes so that the guide stars are well centered
  • guide with either GC1 or GC2
  • get decent focus and then check and correct any GROC
  • Retract ACAM
  • Open the PFIP shutter syscmd -P -v 'OpenShutter()'
  • null out the X, Y, Focus, Theta, Phi from DWFS8
    • To make X or Y offsets you will need to:
      • open the loop on the guider
      • make your offset with the handpaddle
      • clear the fiducial
      • watch as new fiducials are set to see if it looks good
      • close the loop on the guider
    • To make the Theta and Phi offsets you will need to:
      • open the loop on the TTC
      • make your offset with the handpaddle
      • clear the fiducial
      • watch as new fiducials are set to see if it looks good
      • close the loop on the TTC
    • The X and Y prescribed corrections are between -1 and 1.
    • The Theta and Phi prescribed corrections are between -10 and 10.
    • The Focus prescribed correction is between -0.05 and 0.05
  • make small offsets with the OWFS1 and OWFS2 to get the lenslet centered. 
To move the wfs probes:
syscmd -T -v 'WFS1_offset_probe( dx_ang=1.0, dy_ang=0.0) '
syscmd -T -v 'WFS2_offset_probe( dx_ang=0.0, dy_ang=-0.5) '
The coordinates are in units of arcseconds.
  • save probe positions in the RA log with /home/mcs/astronomer/caldwell/shoprobes
  • save at least 15 images (at the same time) with all cameras that are running: GC1, GC2, WFS1, WFS2, DWFS8, TT NOTE: This can be done one jove terminal as startsaving followed by stopsaving
  • wait 10 minutes
  • null out corrections on DWFS8 or CWFS
    • NOTE: if you need to make X and Y offsets you should probably do this with a trajectory offset with probes=true to keep the WFS1 and WFS2 well centered
    • e.g. syscmd -T 'offset_trajectory(dx_ang=0.0, dy_ang=-0.3, adjust_probes="true")'
  • check GROC, make correction is required ( > 500 um correction)
  • null out corrections on DWFS8 or CWFS again if required
    • The X and Y prescribed corrections are between -1 and 1.
    • The Theta and Phi prescribed corrections are between -10 and 10.
    • The Focus prescribed correction is between -0.05 and 0.05
  • save at least 15 images (at the same time) with all cameras that are running: GC1, GC2, WFS1, WFS2, DWFS8, TT
  • repeat the last 5 steps until the end of the track.
  • Close the PFIP shutter syscmd -P -v 'CloseShutter()'

Repeat test: choosing a new star at the next Az in the list: 234, 292, 0

Drift test: GC1-GC2-ACQ

Purpose: We want to see how much drift there is from one side of the IHMP to the other. Generally we want to guide on one GC and watch the others. This should be done in the south.

Procedure:

  • Get a good stack with good groc (GROC < 250).
  • Record the GROC value and the truss temp.
  • Setup for a full track with good focus
  • Start saving images with GC1, GC2 and ACAM
  • TO should maintain focus
  • Be sure to run the DMI with 10 second interval.
  • At the end of the test be sure to report the GROC value and final truss temp.

Dither test on DWFS9 in IFU 052

Purpose: We want to see the reproducibility of the dithers imaged through the DWFS9 point grey camera which might be in IFU052.

Procedure:

  • Put a really bright star on IFU052 to confirm that we can actually confirm that it is right one (you will need a guide star to hold it steady.
  • If you can confirm that this is the right IFU slot try the following steps
    • Setup on a 14th mag star for IFU052
    • Guide on GC1 or GC2
    • make sure GROC < 400
    • make sure you are in dither position 1
    • take a few images with the point grey camera dwfs9
    • change to dither position 2 with syscmd -P -v 'AdjustDither(pos=2)'
    • take a few images with the point grey camera dwfs9
    • change to dither position 3 with syscmd -P -v 'AdjustDither(pos=3)'
    • take a few images with the point grey camera dwfs9
    • move back to dither position 1 and repeat the last 7 steps until you collect 3 cycles of data.

Science with LRS2-R and VIRUS Engineering

Purpose: LRS2-R is available for beware of grouped targets with LRS2-B.

Procedure:

  • NOTE: LRS2-R is in IFU slot 057
  • You can use shuffle with the setup files from shuffle_config_matt or to try to compenstate for the new ACAM angles try shuffle_config_matt2
  • Do a blind offset setup, ie. do_shuffle RA DEC 0 X 057 0 0 test
Last modified 8 years ago Last modified on Oct 29, 2016 8:58:58 PM