CASA User Testing Meeting Minutes - 2015-01-20, 09:00 Socorro / 11:00 Charlottesville

Post-meeting minutes notes are appended in blue text.



Present: Mark Rawlings, Crystal Brogan, Anand Crossley, Amanda Kepley, Juergen Ott

Apologies: None, but Socorro attendance lower than usual due to the weekly Monday meeting there deferred from the preceding day (MLK Day holiday)


  • Socorro: AOC-280; IP:
  • Charlottesville: Room 331; IP:

Minutes (Main Points Only)


  • 4.3.0 has been released for RHEL 5 and 6, and OS X 10.8.
  • 4.3.0 is the current public release version for both Linux and OS X. 4.2.2 is still currently being used for pipelined data reduction at the NAASC.
    • If you are on a Red Hat 5 machine, you can access older versions via the '-r' option, e.g. 'casapy -r4.1.0'
    • If you are on Red Hat 6 and need CASA 4.1, run it from here: /home/casa/packages/RHEL5/release/casapy-41.0.24668-001-64b/casapy.
    • Descriptions of the new-style packages, how to start them, etc. are summarized on the following wiki pages:

Number of CASA Jira tickets with "Ready To Test"/"Under Test" status (including EA, EU, JAO, Software-only tickets, but excluding Pipeline) prior to meeting: 46 (was 49).

Number of CASA Jira tickets with "Ready To Test"/"Under Test" status (including EA, EU, JAO, Software-only tickets) following meeting: 45.


  • Viewer and PlotMS testing - DAs
    • CAS-6604 - Viewer parent for all platforms, updated for lingering post-4.3 release issues. Some subtasks remain Open.
    • See also: CAS-7039 (two open subtasks) - OS X-specific post-4.3 release Viewer issues
  • New ticket assignments (see below).
  • The "nag list", "input required" items
  • Other testing items specifically raised?
    • Crystal noted that she had encountered a problem when taking a data set from CASA to FITS and back to CASA again: problems are reported with axes coordinates when (e.g.) attempting to use impbcorr. A Jira ticket will be created for this, but she also wanted to know how to best draw attention to tickets that have a broad, significant impact on the user experience but which cannot be classified as blockers. Mark R. noted that unless an item is a blocker, he would be less likely to note the ticket prior to it reaching the "Ready To Test" stage. Should Crystal (or others) particularly want a ticket to be noted by Mark (and hence the rest of the CASA management), a specific note should be made on the ticket and Mark R. added as a watcher.
    • Juergen will review the "Input required" tickets that are listed as needing CSSC input, and decide how to proceed with them.

New Testing Assignments (see relevant section below)

  • Assignment of any other "To Be Assigned" Items.
  • The next meeting is scheduled to take place on February 3rd.
  • Any Other Business: None.

Old Action Items

  • None

New Action Items Arising

  • TBA

PART 1: Items to be Covered During Meetings (as time permits)

Propose to Close Items

  • CAS-3666: split on spws gives errors for different correlation shapes. Former 4.3 Blocker. Had been stuck On Hold, but is causing problems for the VLA pipeline now, so needs to be fixed as soon as possible. The awaited mstransform and split2 functionality has now been committed. 4.3 item. Under Test in 4.3. Tester: Passed to Steve for reassignment someone in Socorro instead. New split roll-out deferred to 4.3 (see split2 tickets elsewhere on this page). Sandra's functional tests are already part of the automated testing suite. We had decide to do the following: If Steve spots a new suitable test dataset, he will check this with that, but if not, we will proceed under the assumption for 4.3 that the automated testing at this point is sufficient. In other words, a lack of additional user testing of this item should not prevent a 4.3 release. Question: Now that 4.3 is out, can we resolve this? Provisionally resolved as fixed, following the meeting.

Items Overdue for Status Updates (i.e. the "Nag List")

Tickets pinged prior to the meeting; consequently overviewed only during the meeting.

  • CAS-3580 (Aug): 4.4 item. Prediction of expected image based noise based on Tsys. Under Test in 4.3. Tester: Eric V. (to be tested at the JAO). Kept open at Remy's express request. Recent testing continuing by Eric.
  • CAS-5191 (Mar): Add gain threshold parameter to fluxscale. Under Test (r28480) in any recent package. Tester: Arielle (was Crystal). Some testing done, bug fix put in, more testing still to be done.
  • CAS-6835 (Sep): 4.4 item. Make a wrapper of cvel to use the MSTransform framework Under Test (r31057+) in current (new-style) stable. Tester: Juergen/Emmanuel. This seems to work overall. There were some differences seen occasionally in results for a few cases (use of Barycentric coordinates, cubic interpolation)., but it is not yet known whether the new or old results are the right ones. Emmanuel has also recently tested this, and reported some odd cvel2 behavior. Testing ongoing.
  • CAS-4758 (Sep): 4.4 item. fluxscale fails if one of the reference fields is flagged. Under Test (r31121+) in current (new-style) stable. Tester: Claire. No testing progress on this since October.
  • CAS-6912: 4.4 item now. makemask copy always replaces image. 4.3 item. "Under Test" again in stable package 4.4.9+. Tester: Juergen. Ongoing. Just needs to be checked again. Close to done? Ticket pinged.
  • CAS-4623 (Aug): 4.4 item now. SetJy: Method to set Pol Fraction and Angle as Function of Frequency. Under Test in current packages. Tester: Preshanth. Had been pending access to new testable package. Steve now has a test dataset for this. Ticket passed to Preshanth, although Steve will probably also do a bit of testing of this one. Ticket pinged: Preshanth has tested this, and promised to file his report.
  • CAS-7221: 4.4 item (just missed 4.3 release). importfits doesn't support RESTWAV fits keyword. Under Test in current stable. Tester: Remy. Close to done?

Other Items Currently "Under Test"

  • CAS-6707 (Sep): mstransform problems with CALDEVICE and SYSPOWER sub-tables when creating an MMS. Under Test in 4.3, but 4.4 item now. Tester: Previously passed to Steve for VLA user tester assignment. Previously discussed at length: Dependent on the level of parallelization expected for 4.3. Testing will probably not be practical until 4.4. Ongoing item?
  • CAS-5893 (May): Now a 4.4 item. add the ability to write a spectral profile to an ASCII file in the ia tool. Was Under Test in 4.3. Commit was r29681. Tester: Assigned to Juergen for testing and a possible CSSC discussion. Pushed back to 4.4. Might also need a task adding for this for 4.4?

"Ready To Test" Items Pending Tester Assignment

Worked through step-wise during the meeting.

  • CAS-7185 (Dec): 4.4 item. reset rest frequency in viewer to original value. Available in stable now. Tester TBD (DA?) Tester: DA
  • CAS-7240 (Jan): 4.4 item. Dot option for grid lines in plotms does not work on Mac. RTT, pending a suitable OS X test/stable 4.4 package. Tester TBD (DA?) Tester: DA
  • CAS-7247 (Jan): 4.4 item. peak value in spectral profile Gaussian estimates window overlapping with slider on Mac. RTT, pending a suitable OS X test/stable 4.4 package. Tester TBD (DA?) Tester: DA
  • CAS-3763 (Jan): 4.4 item. plotms needs colorize by observation id. Available in stable now. Tester TBD (DA?) Tester: DA
  • CAS-3157 (Jan): 4.4 item. scan intents selection field in plotms. Available in stable now. Tester TBD (DA?) Tester: DA
  • CAS-7148 (Nov) Old 4.3 item (included in the release). plotms: inconsistent handling of the destination directory of the plotfile. Tester; TBD (DA?) Tester: DA
  • CAS-7258 (Jan): 4.4 item. concat should also scale SIGMA when it scales WEIGHT. Probably available in stable now. Tester TBD (not sure yet if Europe prefer to handle this one themselves?) Clarification on the necessary testing procedure was requested from Dirk, prior to deciding whether to assign it to a NA or EU tester.
  • CAS-5836 (Nov): 4.4 item. Create new task imrebin. Under Test again in 4.4.9 or later (so testable again now). Tester: TBD (was Adam). The dropdeg and box parameters should be hooked up correctly now. Close to done? Testing reassignment needed.
  • CAS-6529: 4.4 item now. MS processed with mstransform not handled correctly by uvcontsub, clean, etc... Under Test in latest new-style stables and pre-releases. Tester: TBD (was Kristina). Mostly works now. One more fix just committed (r31369 in trunk, also now in release branch). Needs reassignment? Provisionally reassigned to Juergen, who will get up to speed on this ticket and keep/reassign as appropriate.
  • CAS-4469 (Jun+ 2013): Split with channel averaging is creating spurious spectral features and weight is wrong when there has been channel flagging. Subtask of CAS-5245. Ready To Test. Crystal had been a tester for this previously - give it back to her? Passed back to Crystal, on the understanding that Mark R. will make sure that she has the additional information she needs to be able to test this, and convert the usage into something that can eventually be written up as a recommended practice for users. Mark R. has accordingly requested additional clarification on the ticket.

Single Dish (to be skipped during the meeting)

  • See SD ticket list below

Input Required

Overviewed only during the meeting.

  • CAS-5806 Mathematical prediction of post-gridding single dish beam. Formerly a 4.3+ Blocker, now "Critical". "Input Required?* Developer has done some modelling, but... ? This is a "blocker of a different kind..." High priority (blocking further development). Currently Input Required from Kana. Crystal and Kumar had been in discussion, but this ticket has been quiet since (effectively) December. 4.4+ item now.
  • CAS-2882: plotms does not display flags correctly. 4.4 item. May already have been fixed, though? Ticket with George, needs verification from Dirk.
  • CAS-6975: not evidently possible to overplot from casapy. Input Required from Remy.
  • CAS-7082 (Nov): ia.convolve2d gives unusual SEVERE message when asked to convolve to the same resolution. Input Required. Passed to Juergen for CSSC input.
  • CAS-5334 (Feb): Ellipse regions have wrong width (RA). Second fix committed. Was previously tested in casapy-test (r29326), set to Input Required for input from developer. Tester: Paul. Pushed back to 4.4. Cropped up in a Helpdesk ticket.
  • CAS-6823 Memory consumption in wvrgcal seems large. Ticket with Lindsey. 4.4+ at this point. Ticket pinged.
  • CAS-5785 (May 2014): drastic split speed discrepancies depending on whether spw is set or not. Input Required. Ticket back with reporter for more info. Known behavior for MSSelection. Some discussion of this item and related topics: split with spw (see also CAS-3666 below). It would be good to be able to select by spw on a large dataset. Will MSTransform have the same problem? Do MMSs help here? Also, Justo's note on this implies that this is a known issue with MSSelection (and not a split problem), but doesn't actually indicate if this is a known issue to be addressed or a known issue that we have to document and just live with. (Steve would also like to be able to do spw selection in asdm2ms - there may well be a separate ticket for this). 4.4+ item. Ticket pinged repeatedly.
  • CAS-4735 (Nov): imsmooth needs additional option for single dish use. Subtask of CAS-5844 (above). Open again. Tester: Tsuyoshi. Critical item. Code committed to trunk. 4.3 item. Some testing done, mostly works as intended. Input Required from Crystal for some remaining changes. Any remaining future work will have to be for 4.4+. Ticket pinged.
  • CAS-5162 (Sep 2013): Improvements in flagging documentation and examples. Input Required from Science (via Jeff). This ticket has been left untouched since May 2013... Version 4.4+.
  • CAS-6124: imfit subtasks:
    • CAS-4538: migrate imfit input estimates from file to input parameters. Input Required (was "On Hold"). Subtask of CAS-6124. Ticket passed to Juergen, pending a CSSC discussion of what needs to be done and a scheduling of the work. Pushed back to 4.4. Ticket pinged.
    • CAS-6234: imfit estimates should allow sky coordinates in addition to pixel values. Input Required (was "On Hold"). Subtask of CAS-6124. Ticket with Juergen, pending a CSSC discussion of what needs to be done and a scheduling of the work. Pushed back to 4.4. Ticket pinged.
  • CAS-5996: immath unit- (and if relevant beam-) awareness. Input Required. Ticket with Juergen, pending a CSSC discussion of what needs to be done. Pushed back to 4.4. Ticket history is a bit muddled - Passed to Joe for clarification on whether the requested change was approved or rejected.
  • CAS-4748 (Dec 2012): Polarization selection does not select SIGMA. Input Required. Passed to Jeff for prioritization. Version 4.4+. Ticket pinged.
  • CAS-5886 (Dec 2013): bizarre clean boxes for large images. Awaiting input from one developer to another. Version 4.4+.
  • CAS-6175 Plotms-vis-model (minus) normalization (visnorm) in gain,bandpass (seems to be missing now). Ticket with Rob for follow-up. Pushed back to 4.4. Ticket pinged.
  • CAS-3614 Calibration and Analysis of Single Dish Polarization. Pushed back to 4.4+. Input from Tsuyoshi requested: cal/analysis strategy for SD pol not yet established, so no input possible yet.
  • CAS-4349 Amplitude calibration for single dish. Pushed back to 4.4+. Input from Tsuyoshi requested. Ticket pinged.
  • CAS-2825 Support for Lissajous mapping. Pushed back to 4.4+. Input from Tsuyoshi requested. Discussion ongoing.

Other Blockers

Skipped over during the meeting, due to the nature of the current list.

  • CAS-6688 Turn on new vi/vb within imager and test. 4.4 item. Unscheduled. Currently with Jim. Ticket pinged.
  • CAS-7266 sdimaging crashed due to Unknown Error. 4.4 item. Open. Currently with Kumar.
  • CAS-7251 sdimaging crashed on 4.3 prerelease for OS X 10.8. 4.4 item. Open. Currently with Kana.
  • CAS-7244 Migrate aatm code to casa code tree. 4.4 item. Scheduled. Currently with Kana.
  • CAS-7220 Update ATM library in CASA 4.4. 4.4 item. Scheduled. Currently with Kana.
  • CAS-6527 CASA collides with easy_install.pth. 4.4 item. Scheduled. Currently with Darrell.

PART 2: Items Listed for Informational Purposes (note that these will not normally be specifically discussed during the meeting unless someone raises them)

Unable to Test Items

  • CAS-6220 (Mar): Enable importasdm to read flags from the binary ASDM data. Under Test in any of the new-style stable packages. Commit was r28609. Ticket with Dirk for now. Todd had incidentally tested this while working on something else. Runs to completion (and sometimes generates a lot of INFO messages). Close to done, but kept open for now for second stage implementation of asdm2MS completion. May be able to close?
  • CAS-5084 (May): Testing multi-term support in pclean. Lots of feedback supplied by Kristina and Claire. On Hold (since August 2013) and assigned to Kumar pending class refactoring. To be left on hold, pending the refactored imager classes.
  • CAS-6433 (Apr): Implement a function to derive Jy/K factor from amplitude calibrator observation. Open. Currently with developer. Was targeted for November 23rd Pipeline release. Pushed back to March 2015 Pipeline release.
  • CAS-6232 (Mar): writing version numbers in GUIs. Under Test in 4.3. Most recent commit to trunk was r29373. Tester: Juergen. However, this also needs to be checked in the table browser, the work on which is currently unscheduled. Spawned another ticket for its underlying cause.
  • CAS-5844(Dec 2013): 4.3 imsmooth specification and testing targets. Container ticket only - see its subtasks (including CAS-4735 which is "Input Required"). Currently "Open" and assigned to developer. To be resolved when all subtasks are done.
  • CAS-5379 - Subtle inconsistencies with other programs in Galactic Coordinates (Adam and Harvey). In a nutshell, shifts of ~0.2" are seen when taking data into other packages (e.g. DS9, IDL which both seem to agree with each other). It is unclear yet if this is an incorrect implementation in one or more packages, or possibly just a precision error. This is a subtle issue, and was pushed back. Ticket stalled. Needs to be looked at by someone with lots of time. To be left as-is for now. This needs significant work, including new science papers on how to actually define the Galactic coordinate system? Needs casacore discussion; this can be part of that. Passed to Jeff for now. Pushed back to some indefinite future release.
  • CAS-4636 (Oct 2012): Elevation dependent opacity application w/ Tsys. Still awaiting input from Science. Had been "On Hold" since August, awaiting data. Switched to Input Required and passed to Crystal for comment. Bumped back to 4.4+. Work on this is "Unscheduled" until further notice. * CAS-6243: sdimaging does not accept type numpy.string_ for fieldid. Unscheduled, pending identification of a suitable example case. Commit was r29988. Discussion ongoing. Pushed back to 4.4(+). Tester: Todd.
  • CAS-4592: plotms on 10.7 issues. Half fixed due to Qt updates. Was "ARTT" in 4.2.1 and 4.2.2 pre-release. Scheduled again now. Also sen under OS X 10.8+. Ticket with the developer. Tester: Nathan.

Upcoming Ready to (Re)Test Items

Not Yet Assigned To Testers

  • TBA

Single Dish

See below "assigned" SD list.

Already Assigned To Testers

  • CAS-6951 (Oct): 4.4 item now. mstransform creates a 4-polarization DATA column for single-polarization ALMA WVR data, and a 1-polarization DATA column for four-polarization ALMA data. Fix already included in current new-style test/stable packages newer than 4.2.23. Scheduled again now. Tester: Todd. Ticket currently back with developer again.
  • CAS-6962 (Oct): 4.4 item now. wvrgcal segfaults on a 9-antenna dataset in which only one antenna has a WVR, and minnumants=2. Scheduled again. Tester: Todd. No longer crashes, but odd behavior remains. Ticket currently back with developer.
  • CAS-6778 (Sep): Add support for new 'OBJECT' reference framew in mstransform. Was previously "Under Test". Tester: Arielle. Some testing done. Sounds mostly good, but some issues raised - ticket reopened and passed back to developer for more work. Ongoing. Awaiting developer response. Reported issue more a cvel issue? Ticket pinged for clarity.
  • CAS-3532 (Sep): Incorporation of Alma Primary Beam in Mosaic. Was ARTT. Tester was Scott S., but ticket passed to Crystal for input. Some test imaging done. Current status is Scheduled. Pushed back to 4.4. Ticket pinged.
  • CAS-5731 (Oct): Loading DS9 region files into the viewer produces a warning and does not load. Open; Was 4.3 item, pushed back to 4.4. Ticket back with developer. Tester: Jen. Unlikely for 4.4 now?
  • CAS-3517 (Aug): Improve remapping interface (Cal libraries). Input Required from developer. Tester: Steve. Some testing done, recommendations made, ticket back with developer. Discussion ongoing. Further callibrary work to be pushed out to 4.4 in Jira. Pushed back to 4.4. Previously identified as a duplicate of CAS-5617, but now (also) a sub-task of it.
  • CAS-4663 (Oct 2012): specfit components/prompt/inf. Unscheduled (following input from Juergen). Slated for work, but expensive in terms of effort, so not a priority right now.
  • CAS-5127 (May): Document ia toolkit methods. Status Scheduled. Mark is working on this. Most of Juergen's prioritized list of 26 items has been done. Dates to be added his future documentation updates. Prioritized by Mark. Ongoing. ia.regrid docs will require more work. Still needs code commits. Mark to restart work on this under Linux soon.

Single Dish

  • CAS-7193: sdcal2 mode='apply' should handle flagged spw, antenna, and/or polarization properly. Under Test in 4.4. Tester TBD. Passed to Bunyo.
  • CAS-7013: Remove old single dish tasks from CASA 4.4. Under Test in 4.4. Tester TBD. Passed to Bunyo.
  • CAS-6702: Provide a way to select data by scan row in raster mapping. Was Under Test in recent new-style test/stable package, but omitted from release branch will now be included in 4.4 instead. Tester: Tsuyoshi. Testing currently blocked by testable package installation issues in Chile?
  • CAS-4362: Automatic resolution of cell size causes unexpected expansion of grid area in sdgrid (STGrid). CASA 4.4. Under Test in 4.4. Tester TBD. Passed to Bunyo. Ticket pinged.
  • CAS-6703 (Aug): Provide a way to select data by raster (visit) in raster mapping. Under Test in 4.3. Tester: Patricio. Testing ongoing (but it sounds close to done?).
  • CAS-6704 (Sep): Enable plotting data by raster scan row and raster visit. 4.3 item. Under Test in 4.3, pending availability of new user-testable packages in Chile. Commit was r31160. Tester: Tsuyoshi. Testing has started on this, mostly OK, but an exception triggered. Known issue item for 4.3, A fix is in for 4.4. Testing currently blocked by testable package installation issues in Chile?
  • CAS-6572: (Aug): A new baseline task that handles baseline table. Under Test in latest 4.3 casapy-test/new-style stable packages. Mostly done. Ticket with Kana. Ticket pinged.

-- MarkRawlings - 2015-01-15
Topic revision: r4 - 2015-01-20, MarkRawlings
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