CASA/JIVE VLBI Coordination Meeting

2020 Oct 28 @ 1400UTC


  • Future Meeting dates (usually last Wed of the month):
    • 2020 Oct 28 @ 1400 UTC? (beware end of DLST in NL)
    • 2020 Dec 9? or 16? @ 1400 UTC
    • 2021 Jan 27

General Admin

  • General Status w.r.t. Coronavirus measures
    • NRAO/ALMA:
      • NRAO in North America will continue to work@home for foreseeable future (well into 2021). Infections rates increasing across US; NM now worse than ever...
      • ALMA developing array restart plans, expected to take many months. Resume science observing in March 2021?
      • Science/computing staff continuing work-at-home for now
  • CASA Release Schedule
    • CASA 5.7/6.1: Has been released (2020 Aug 20). Patch releases pending:
      • CASA 6.1.1 for ALMA PL being exercised; working on a repeatability issue
      • CASA 6.1.2(/5.7.x?) w/ polcal and tec fixes (VLASS, ALMA) pending. 6.1.1 vs. 6.1.2 discrepancy (probably same as above?)
    • CASA 5.8/6.2: Development ongoing.
      • Should be wrapping up development ~now
      • Tickets reviewed below...
  • Requirements collation: 2020 May 07 document / VLBA Costing/Prioritization (2020 May 21)
    • (George) TBD: Complete re-numbering to better align with prioritization exercise from May 2020
    • (George, Justin) TBD: Need to forward Requirements Doc and prioritization to Jen Donovan-Meyer, as input to Stakeholder process for CASA 5.9/6.3
    • (Justin) "VLBA 5-year Plan for CASA" (There is also a "VLA CASA 5-year plan" materializing, via Josh Marvil)
    • (Mark) "Science roadmap for EVN"
  • (Ryan) CNGI Status:
  • Pending admin issues
    • DIY casa5 tarball build instructions can be found here
    • casa6 build issues: formal instructions for plotms, CASAshell, casa5/6 co-exist, c++ unit tests in casa6
  • Meetings/workshops of relevance
    • CASA User Committee: 2020 Oct 20-23 (virtual)
      • Committee encouraged by VLBI efforts, including commitment by NRAO to seek additional development funding for VLBA. Need fringefit plotting for CASA6!
      • Ilse?
      • Aggregate cal plotting... (Bietenholz)
    • JIVE VLBI Workshop 2020 Nov 2-6. (virtual)
      • Next week!
  • Other admin?


  • CASA 5.8/6.2:
    • JIRA (VLBI) Status
      • Notables:
      • (George) CAS-12735: Frequency meta-info (includes generalized fix for CAS-12553, and several other bug tickets)
        • Making progress, been distracted by 6.1.1/6.1.2 in recent weeks. Committed to completing it!
      • (Des) CAS-12765 (wide-spaced spws): waiting for freq meta fix in CAS-12735
      • (Mark) CAS-13184): accor corrdepflags. Ready for verification w/ Neal
      • (Mark) CAS-8537: gain curve. Now in validation.
        • (Mark) Test of gaincurve to use small dataset recently obtained by Justin: TL015
      • (George, Mark?) CAS-12736 (revised accor test) Mark may be able to help with test deployment (cf gaincurve above)
        • George remains curious about OSX version discrepancies; cf 6.1.1/6.1.2 inve
      • (Mark) CAS-12989 (eMerlin crosshands) Validation complete (Anita Richards)? Need hard-to-get eMerlin dataset for proper verification test.
  • Other development
    • CAS-12485: OTF weight munging for solve (Can we complete validation and deploy? Des seeking interested users at JIVE)
    • (Mark) VLBA pulsar binned data
    • (Mark) Generalized polarization basis conversion
    • Other:
      • George to study what is needed in plotms for fringefit (CASR-537; may not require significant effort from Pam)
      • George/Justin to coordinate initial testing on CASR-463 (TEC) to better characterize basic requirements (also CAS-13040 re TEC retrieval changes)


  • ?

-- GeorgeMoellenbrock - 2020-10-27
Topic revision: r2 - 2020-10-28, MarkKettenis
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