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CASA/JIVE VLBI Coordination Meeting
2021 Jan 20 @ 1500UTC
Future Meeting dates (usually last Wed of the month):
2021 Feb 24 @ 1500 UTC
2021 Mar 31?
General Status w.r.t. Coronavirus measures
NRAO in North America will continue to work@home for foreseeable future (well into 2021). Infections rates high, but stabilizing(?) in US; vaccinations have started.
ALMA progressing with array restart plans; first test observation last week?
Science/computing staff continuing work-at-home for now
CASA Release Schedule
CASA 6.1.1 for ALMA PL being exercised; working on a subtle repeatability issue (CAS-13283)
CASA 6.1.2/5.7.2 w/ polcal and tec fixes (VLASS, ALMA) released 2020Dec17.
CASA 5.8/6.2: Development
Except for a few critical blocker tickets, everything should be through verification/validation by end of January. Release by end of February.
VLBI-specific tickets reviewed below...
2020 May 07 document
VLBA Costing/Prioritization (2020 May 21)
(Justin) CASA 5.9/6.3 Stakeholder requirements submitted 2020 Jan 8?
(Ryan) CNGI/ngCASA Status:
Anything to report?
FYI: CNGI Development
(Mark) EHT SDC working group is interested in hearing about ngCASA (next meeting Jan 28 1400 UT)
CASA Docs now hosted on readthedocs platform:
Need github ids to provide edit permissions
DIY casa5 tarball build instructions can be found
casa6 build issues: formal instructions for plotms, CASAshell, casa5/6 co-exist, c++ unit tests in casa6.
Meetings/workshops of relevance
Ilse gave great CASA/VLBI talk at Radio Camera Initiative Seminar Dec 11
link to RCI seminars:
(Mark/Des) Created new "VLBI integration" branch
JIRA (VLBI) Status
(George) CAS-12735: Frequency meta-info (includes generalized fix for CAS-12553, and several other bug tickets)
(Des) CAS-12765 (wide-spaced spws): waiting for freq meta fix in CAS-12735
(Neal) CAS-13184): accor corrdepflags.
Validation (Janssen) complete
some final tweaks to accor.xml?
(Mark) CAS-8537: gain curve. Now in validation. Need to ping Jen.
Validation complete (Mark)
Some final tweaks to align tests in casa5 and casa6?
(Neal) CAS-12736 (revised accor test)
(Mark) CAS-12989 (eMerlin crosshands) Validation complete (Anita Richards)
Need hard-to-get eMerlin dataset for proper verification test....
(Pam Harris) CAS-11318: Fringe-fitting solution plotting has been implemented in plotms!
Actually, dispersive term still needed to be added...
Pam and Des seem to have converged?
(CAS-13056, CAS-13003, and possibly CAS-13005 to slip to next cycle)
CASA 6.3 prioritization
(Justin) CASA 5.9/6.3 Stakeholder requirements submitted 2020 Jan 8 (?)
Other development topics
(Des) Memory leak in fringe-fitter? (from big EHT case by Janssen). Apparently not a leak, just a large memory case? Des continuing investigation (CAS-13224)
Meta-data problems when preavg < solint? nRows(!) in VB2 is wrong when baseline (antenna) population varies within solint
in imported Tsys. *CAS-13270. (easy fix; defer to 5.9/6.3?)
CAS-12485: OTF weight munging for solve (Can we complete validation and deploy? Des seeking interested users at JIVE)
(Mark) VLBA pulsar binned data.... requires casacore fix to importfitsidi (PR pending, CAS-8550). will be merged via gaincurve casacore changes
(Mark) Generalized polarization basis conversion
(George/Justin) to coordinate initial testing on CASR-463 (TEC) to better characterize basic requirements (also CAS-13040 re TEC retrieval changes)
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