Overall status: In D configuration (all antennas moved as of the 26th; end of D is 27 December). Missing scan issues associated with changing correlator configs and CBE integration times has not yet been hunted down but can be avoided. 3-bit testing ongoing (report later). EA25 back in the array. 63/64 BlB pairs available. Double maintenance day begins.
Key dates:
26 Sep - 27 Dec: D configuration
Visitors:
Michiel Brentjens: 11 Jun - 11 Nov (Holography; characterizing polarized beams)
Hardware status and updates (Langley, Perley, Rupen)
Array (Perley/Langley):
Antennas: EA25 back (used for LSCXKu last night; should be available broadly tonight); EA19 is out.
Receivers:
EA24 for first L-band solar capable Rx - pushed to 26 Oct.
Perley: RF Switch testing ongoing
Calibration (Perley): Gain compression/expansion ongoing (Hayward). - work begins again this week.
Holography (Brentjens): Notes: Actual campaign started; K band test (with inadvertent excitement).
WIDAR (Rupen):
Notes (Rupen/Sowinski): Some issues with recent changes to BlBs; removed on Friday. 1 bad BlB pair currently; to be replaced today(?). Hunt to understand the missing scans is ongoing (thus far not able to reproduce reliably). 3-bit sampler tests are highest focus (status):
NOTE: Please cc me on submitted tests so that it can be assigned the appropriate priority!
Commissioning priorities for the week (McMullin, Chandler); Note: Change for Mondays in D configuration - dedicated to science operations/planned commissioning tests.
Mon
1000-1700: Testing/software development time
1800-0900: Science operations and testing
Tue: Maintenance day
0630-1700: Maintenance operations
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):
0900-0900: Science operations and testing
Sat-Sun
Science operations + planned testing
Issues Affecting Science Observing:
Correlator: [Rupen/Carlson w/ Momjian/Sault] V stokes issues.Status - next week.
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). .Needs close-out testing (Michael-update activation time testing).
Correlator: [Clark/Carlson] Delay rocking across bands. (October)
Array: [All] Zoo of other effects (some data are very good, some still seeing antenna-based IF/Polarization issue).
Testing This week/soon
3-bit sampler testing
Holography
RSRO D configuration tests (principally data rate; recirc, solar).
OTF test.
Flux scale testing (Cyg A)
Subarrays: cleanup.
Stage 2 mixer testing to relax sub 128 MHz BW grids
Ott: Proposed spectral line observations for the move time. (review wide-narrow transfer, uniform noise setups, channel isolation, spectral dynamic range (presence of RFI)). Obtained; pending reports. Gibbs phenomenon has returned testing out shift strategy.