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Minutes in bold.
CASA/JIVE VLBI Coordination Meeting
Attendance: George, Mark, Des, Ilse, Ryan, Justin
2020 June 24 @ 1400UTC
Future Meeting dates (usually last Wed of the month):
Nominally: 2020 Aug 12 @ 1400 UTC (dodging summer vacations)
(2020 Aug 26 @ 1400 UTC,
TBD wrt vacations...
General Status w.r.t. Coronavirus measures
NRAO in North America now in Phase 1 of "Return to Full Operations" from June 8,
Ramping up on-site work, with strict protocols for site/lab/office safety
Science/computing staff settling in to work-from-home for the longer haul (considering internet bandwidth improvement options in Socorro)
VLA reconfigured to B-array, WIDAR correlator power infrastructure work completed, observations beginning soon....
RTFO Phase 2: Sep 5 - Dec 31, "Steady-state" in "New Normal", maybe some travel,
meetings; consider 2021+ according to conditions
ALMA (and Chile, in general) a few months behind North America, science operations unlikely to resume before ~Dec 2020.
Science/computing staff continuing work-at-home for now?
CASA Release Schedule
CASA 5.7/6.1: Almost ready to branch...
CASA 5.8/6.2: Planning
(Mark) Requirements collation status?
Document (2020 May 07) in good shape:
Plans for broader circulation, additional edits?
Coordination with costing spreadsheet?
(Maybe some renumbering)
(George) CASA VLBI Readiness
NRAO Users Committee: "VLBI support in CASA needs a higher priority to improve the health of the VLBA user community."
Tony Beasley seeking resources to support this.
(Ryan) CNGI Status
CNGI/ngCASA Conceptual Design Review: 2020 Jun 9-10
"suspended" due to review scoping issues,
mismatch with ngVLA project methodology
Will proceed with some more prototyping over the next few months,
culminating in a "demonstration release" for community later in the year
FYI: CNGI Development
Pending admin issues
DIY casa5 tarball build instructions can be found
(Des having some issues sharing his tarball with others; following up with Ville....)
casa6 build issues: formal instructions for plotms, CASAshell, casa5/6 co-exist, c++ unit tests in casa6
Upcoming meetings/workshops of relevance
Virtual NRAO Synthesis Imaging Workshop: Q&A Sessions: June 29 - July 17. George: "Calibration Q&A" on June 29.
JIVE VLBI Workshop 2020 Nov 2-6. Virtual, hopefully with an in-person component.
Maybe only in-person (off-site), due to internet bandwidth concerns
VLBI-specific sessions at European Astronomical Society Meeting on 2020 June 29:
CASA 5.7/6.1: VLBI contribution complete
(Des) Critical fringefit bug?
CAS-13094, will be merged with master for 5.7/6.1 ASAP, pending final testing (pending fix to Des' tarball issues)
All VLBI-specific efforts to be documented with CASA effort; isolated via "VLBI@NRAO" and "VLBI@JIVE" JIRA labels.
Use "Release Notes" field to indicate current issues/status (appears in tables)
Use "Developer" field to indicate responsible developer(s), independent of assignee
CAS-12736: accor test needs some
data for proper test
43 GHz dataset likely best-demonstrator; may be possible to re-use something from fringefit testing (Justin?)
CAS-8537: gain curve:
Mark has working implementation
Do we need a (wider) review of the proposed GAINCURVE subtable? Add OBSERVATION_ID to table?
Caltables use 16 parameters (8 per-pol), so a polynomial of degree 7.
How to integrate into gencal?
(TBD for George: add new gencal mode, or make existing one smart enough?)
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)
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