Overall status: In A configuration (08 Jun). Holiday next Monday (so this meeting will likely start late). New versions of PCMC; CBE last week; peculiarities with BlB behavior; CBE issues with MPI (missing scans not completely gone - new guidelines to avoid). Call for Proposals goes out on Thursday. Discussions today on scan alignment, data rates, and an autoflagging demo.
Key dates:
30 Jun - Call for Proposals
08 Jun - 12 Sep: A configuration (move from 31 May - 08 Jun).
Robert Harris (AC982): 24 Apr - 16 Jul (High frequency w/ Claire)
Michiel Brentjens: 11 Jun - 11 Nov (Holography; characterizing polarized beams)
Hardware status and updates (Langley, Perley, Rupen)
Array (Perley/Langley):
Antennas: EA21 back to array 11 Jul. ACU meeting Wednesday at 1530.
Receivers: EA12 X band; EA21 spate of receivers by the end of the month (28 Jun)
Calibration (Perley): Gain compression/expansion still being looked at.
WIDAR (Rupen):
Notes (Rupen/Sowinski): New PCMC last week; currently have no spares in either BlB/StB; working to rectify. Issues over the weekend with BlBs (both classic effing problem and the new partial shutdown which ultimately leads to a loss of communication.
SSS: Work on new OSRO/RSRO capabilities. Correlator: CBE work to hunt down issues with missing scans from the weekend. Work to push on data rates.
Data Rate Discussion: Currently promising 25 MB/s; we're capable of approximately 15 MB/s. Work to improve warnings and notification about the limitations.
CASA Update (new functionality available/issues/enhancements):Notes: new Autoflagging capabilities.
AIPS Update (new functionality available/issues/enhancements): Notes: Eric out today; more next week.
NOTE: Please cc me on submitted tests so that it can be assigned the appropriate priority!
Commissioning priorities for the week (McMullin, Chandler)
Configuration move week (work around these activities:
Mon
0900-1700: Testing/software development time
1800-0900: Science operations and testing
Tue
0900-1700: Testing/software development time
1800-0900: Science operations and testing
Wed: Maintenance day
0630-1700: Maintenance operations
1800-0900: Science operations and testing
Thu:
0900-1700: Testing/software development time
1800-0900: Science operations and testing
Fri (not-yet-a-holiday):
0900-1700: Testing/software development time
1800-0900: Science operations and testing
Sat-Sun
Science operations + planned testing
Issues Affecting Science Observing:
Correlator: [Rupen/Carlson w/ Momjian/Sault] V stokes issues.Further data taking; new theories; Bob leaves on Thursday; discussion on Tuesday.
Correlator: [Pokorny/Rupen/McMullin] time mislabeling in SDM data (non-synchronous operation between correlator dumps and CBE can require additional 1/2 integration time padding for online flags).
Report (Rupen):
Correlator: [Clark/Carlson] Delay rocking across bands. Ongoing discussion of implementation; pending Bryan's return
Array: [Gustaaf] Amplitude wobbles seen on subset of antennas; phase jumps at scan boundaries also seen on subset of antennas (Ka, Q bands only thus far).
Array: [All] Zoo of other effects (some data are very good, some still seeing antenna-based IF/Polarization issue).
Testing This week/soon
CM/CBE: Data rate testing and push; work on new missing scans.
V stokes testing (Momjian/Greisen/Rupen): Further testing (using well understood (VLA) observations).
Astrometry (Bruthaler): UVW precision tests.
Correlator: Rupen: S-band shadow testing
Spectral line: Momjian: HI High resolution bandpass testing
Array: *; Individual issue sleuthing (focus on phase jumps).
Commissioning Groups
Big deadline is end of this month for incorporation into links for Call for Proposals due 30 June.