Agenda

CASA/JIVE VLBI Coordination Meeting

2020 Oct 28 @ 1400UTC

Logistics

• 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?
  • ASTRON/JIVE
    • 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:
  • Anything to report?
  • FYI: CNGI Development instructions
• 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?

Development

• 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)

AOB?

• ?