Creating a SB with the ALMA Observing Tool (OT)

Author: 20080507 - AH (based on Debra's notes)

Start the ALMA OT:

>ALMA-OT

Click on "Phase-II" tab (Do NOT work in Phase I - it is not ready)

In the top level project structure - fill in
  • PI name, Project name, Version
  • project code = comm1 = commissioning #1

Click on Science Plan in project structure
  • Click "Tool" --> "New Science Goal"

You will get a new science goal shown under the Science Plan. It will have Field Setup, Spectral setup, Control Paramters, and Calibration setup parameters.

"Expand" the science goal and fill in parameters:
  • Field Setup: (use "Forms" tab)
    • Orion IRc2: Literature: RA(J2000) = 05 35 14.5094 Dec(J2000) = -05 22 30.471 OT Resolve: RA(J2000) = 05 35 14.488 Dec(J2000) = -05 22 29.316 (close enough)
    • Source velocity = 9 km/s Change "topo" to "lsrk" velocity (this should be the default but it isnnt')
    • Single point field
    • field center = 0 0 relative to source coordinates
  • Spectral Setup:
    • Spectral type = Continuum
    • Rest Frequency = 100.075 GHz (HC3N(11-10)
  • Control Parameters:
    • angular res = 1"
    • largest scale = 30"
    • sensitivity = 5 mJy
      • ETC: 2 GHz BW, 100 GHz, ATF, 2 ants, 12m diam: sensititivy = 5 mJy => exposure time ~ 50s - OK keep rest as defaults (polarization=1 & request ACA=No)
  • Calibration Setup Parameters: select "system" (user not supported yet)

Click on Options --> Telescope --> ATF (if source will not be visible in Chile)

Generate an SB from this science goal:
  • In project tree: click on "Science Goal"
  • "Tool" -> "Generate SBs from the selected Goal"

  • Expand the entire tree in the newly generated science goal

In the Target Forms tab scroll down:
  • Integration time = red 0.0. -> Set it to 320 s

Target Spectral tab:

CONFIG 1 of the correlator Spectral setup shows values: ERROR! in bandwidth and Resolution values of the Spectral Window description. I did not change this what I think might be good values. All visualization and LO settings are all correct.

  • Select the Target and modify the integration time in the Spectral Spec
pane (it assumes a full ALMA - must modify to be appropriate for ATF).

  • Spectral Spec: Integration time = 320 sec (total time on source = 5.3min - NOT USED NOW)

  • Correlator Configuration:
    • Integration duration = 210 (210 x 48ms dumps ==> 10.008s integrations)
    • Sub scan duration = 5 (5 x 10.008s ints = 50 sec subscan length)

Thus, I should get 1 subscan, each of 50 sec length with 5 x 10.008s integrations in each subscan.

  • BaseBand Configurations:
    • For continuum; TFB Mode=103 is OK - this means we are NOT using the TFB and we are in Time Division Mode (TDM).
    • For line; TFB Mode should be 1 => roughly 8192 channels minus about 8% less due to overlap when stitching together the bands for a total of about 7689 total channels.

Workaround to a bug in baseband configuration:

Now Bandwidth and Resolution still reads Error! -

*Delete the baseband config in the table that has the errors. Then click on "Add" to add a new configuration and now the errors will go aways. Band width should be 2 GHz and Resolution should be 244 KHz and TFB mode = 1.

    • Scroll down a bit - *open up the Channel Average Bands *. This is wrong - we are on TFB mode 1 but number of channels = 8192 but it should be less because of the stitching.

    • Set Sub Band Set = 0 * Start Channel = 100 * Number of Channels = 7500

Note
Advanced Settings values should all be OK and left to their default values.

Run the calibration selection tool

    • "Tool" --> "ALMA Calibration Selection Tool": Comes up with the Target (Orion) coordinates.

    • In Cal selection GUI: Enter radius of 20 deg and Click "Filter"

CARMA script generator shows list of good mm calibrators: Cal RA(2000) Dec(2000) deg flux flux from at at when src 3mm 1mm measured 0609-157 06:09:40.9 -15:42:40.7 13.35 1.8 1.2 Jan 16, 2008 0423-013 04:23:15.8 -01:20:33.1 18.41 4.5 2.3 Jan 21, 2008 3C120 04:33:11.1 +05:21:15.6 18.84 1.9 1.1 Jan 21, 2008 0530+135 05:30:56.4 +13:31:55.2 18.94 3.6 2.7 Jan 25, 2008

*Click on J0530+135 and then click button "Select As...". In popup GUI, deselect all but "Phase"
      • Select: Link to same setup (same continuum obs)
      • Note: if this were a line obs of orion, then
      • click "copy to new setup"
      • Click: OK

In SB in the project tree, you now have:
    • Resources: 2 Field sources: Primary: Orion IRc2 *Calibrator J0530+135

*2 Observing Parameters: Orion IRc2 Params

*PhaseCalParameters

Set up the PhaseCalParameters:
  • Name = J0530+135
  • Cycle time = 120 sec
  • Default integration time = 20 sec

In the project tree, click on the sched block target source information.

On Target source, SchedBlock info: Keep the defaults of "Standard Mode" with Mode Name = Single Field Interferometry This assumes you have a script in the archive that will be used called SingelFieldInterferometry.pg

  • Click on Indefinite Repeat (as long as this is a commissioning script allow it to be run multiple times).

If the script is not available or you do not want to use it, then:
  • *UN*click "Standard Mode"
  • Select "Mode Name" = Expert Mode. "Mode Type" becomes Expert
  • Obs. Procedure says to enter your own... go for it! When you have edited in the expert mode script: save the file and clicked 'x', obs procedure shows up in SchedBlock input. *click "Verify"

If desired, add a pointing calibration: Run the calibration selection tool

*"Tool" --> "ALMA Calibration Selection Tool": Comes up with the Target (Orion) coordinates.

*In Cal selection GUI: Enter radius of 20 deg and Click "Filter"

Select the brightest quasar that is relatively close. This is J0423-013 = 5 Jy at 3mm measured in Nov 2000.

  • Click on J0423-013 and then click button "Select As...".
  • In popup GUI, deselect all but "Pointing"
  • Select: Link to same setup (same continuum obs) Note: if this were a line obs of orion, then click "copy to new setup" Click: OK

In the project tree click on the last entry: PointCalParameters. Fill in the following values: Name = point J0423 Cycle Time = 3600 s (one hr, just do it once at the beginning)
Note
Cycle time is not used right now by control. Default Integration Time = 50 s (5 x 50 s = total time for the pointing) Desired Accuracy = 5" (not used right now) Pointing Method = fivepoints (other methods not implemented) Maximum Elapsed Time = 600 s (but this is also not used right now) Excursion = 30 arcsec

It would be good to click on something that says "take the best value for the given frequency" - this is an enhancement request.

Save the project to disk:
  • File --> Export --> to file Orion-IRc2.aot
  • If you are paranoid, do this early and often through out this procedure...

If you are running the ALMA-OT on the real-time machines crc-01 or crc-02, then archive the project so it is available for scheduling:

Click on File - Submit

You should get a diaglog box saying something like:

  • Project Orion SFI-test (1) stored to repository with id = uid://X1eb/X5979/X1

Click OK. You should now be able to see the project in the scheduling panel in the OMC.

Exit ALMA-OT

-- AntonioHales - 07 May 2008
Topic revision: r2 - 2008-05-07, DiegoGarcia
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