Meeting Information

• 1600 UT (1000 MDT)
• AOC 317; IP: 146.88.16.8; phone: +1 575-835-7370

Agenda/Minutes

News, Travel, Visitors (McMullin)

• Overall status: C config; development pushes in both CM/CBE. Short week due to holiday; focus on science at the end of the week (Wed+).
• SASPO Visit/meeting (Monday-Thursday) this week: https://safe.nrao.edu/wiki/bin/view/Cville/SaspoVisitNov2010?sortcol=table;up=#Mon_8_Introductions_Dish_Verific
• Key dates:
  • 10 Nov: Reminder Technical reviews are due!
  • Pre 08Jan: Call for Proposals for February 2011 Call (first for new semester based system; tentative)
  • 08-12 Jan: AAS with special NRAO sessions: Perley: 7 presentations scheduled for the EVLA special session.
    • NRAO Town Hall: http://science.nrao.edu/events/aas217townhall.shtml
    • Special Session: "Early Science with the EVLA": http://science.nrao.edu/events/aas217evla.shtml
    • Special Session: "Observing with ALMA": http://science.nrao.edu/events/aas217alma.shtml
  • 01 Feb: Proposal deadline for D configuration+
• Staff Travel:
• Visitors:

Commissioning priorities for the week (McMullin, Chandler)

• Early week testing (Correlator software/subreflector tests/Ku SEFD/etc)
• Science (includes Thursday and likely Friday; enables additional observing during high pressure gal center).
• Other commissioning tests
• Interrupt status for additional 3-bit testing

Hardware status and updates (Langley, Perley, Rupen)

• Array (Perley/Langley):
  • EA26 to Master Pad (01Nov); back to array (15Nov); EA16 to Master Pad (15Nov).
    • Antennas with 3-bit samplers: EA12, (EA15), EA22, EA28
  • Links:
    • Current list of available receivers: http://www.aoc.nrao.edu/cgi-bin/evla/receivers-report
    • Upcoming receiver installs:
      • L: EA26 (15Nov), EA16 (09Dec)
      • S: EA26 (10Nov), EA16 (15Dec)
      • C EA26 (12Nov), EA16 (15Dec)
      • X EA26 (15Dec), EA24 (21Dec - hohoho)
      • Ku EA26 (12Nov), EA16 (09Dec)
      • Ka EA14 (03Nov), EA16 (15Nov)
      • Q EA17 (17Nov)
    • Subreflector rotation offsets determination (K, Ka, Q); preparation for coordination flux density measurements (really need switched power ironed out); Ku band SEFD monitoring check.
  • Issues:
    • List at: https://spreadsheets.google.com/pub?key=0Al6JLDuYrDsBdFV0SEhDblFmT0l5Sm9vSlh6QlVyaFE&hl=en&output=html
    • Refinements to some of the issues; being hunted down.
• WIDAR (Rupen):
  • Focus on correlator software updates (CBE/CM).
• Computing (Robnett):
  • New link to Lustre guidelines: https://staff.nrao.edu/wiki/bin/view/Main/LustreUsersDoc (Robnett).

Software status and updates (Butler)

• Links:
  • Software versions/updates: https://staff.nrao.edu/wiki/bin/view/EVLA/EVLASoftwareVersioning?sortcol=table;up=#Current_Software_Versions_in_Use
• Minor outage on the archive over the weekend; files restored. OST transition this week (Joan/Barry); OPT update on Monday (if you see your project is Read only - log out and in again).
• CASA Update (new functionality available/issues/enhancements):
  • casa3.2_joint_priorities.txt: casa3.2_joint_priorities.txt
• AIPS Update (new functionality available/issues/enhancements): Eric away; TYAPL issue (Rick) - under investigation.
• SDM Update:
  • Discussions concluded for CalDevice table work; SysPower implemented; tentatively early next week for transition.

Observing recommendations update (Ops)

• Notes: Relaxed recommendation to use C band only for reference pointing; use of Dummy's still under investigation.
  • Link: https://staff.nrao.edu/wiki/bin/view/EVLA/RSROObservingPreparationGuidelines

Commissioning Reports

High Frequency: Subreflector rotation tests: K, Ka, Q (Perley/Sowinski)

Group reports

• Polarization (McMullin for Myers)
• Scheduling (Wrobel/Clark)

In preparation

• * Flagging*: Venkata: Autoflagging in CASA (Next week)
• Calibration: Marvil: Gain curve polynomial fitting (Next week)
• Polarization: Multi-band leakage/PA (Myers, Marvil): Not a priority but still needed; keep on list.
• Correlator: Krauss/Hunter: 7 vs 8 node observing (follow-up; pending RSRO results)
• Array: Dhawan/Rupen: RF switch tests with rapid monitoring

Commissioning Test Planning

• Spectral Line: Momjian: Zeeman suite of tests.
• Correlator: CBE averaging with restricted nodes
• Polarization: Antenna cross polarization (Perley; Need script.); LSCX on 3C147; Scheduled for double maintenance day this week. Postponed until wideband X available on EA24
• Spectral Line: Dhawan: Follow-up on frequency offset phase jumps characterization.
• Spectral Line: Ott: Doppler tracking sampling follow-up

RSRO/ECSO Reports

• Review Overall status; missing SBs

Other updates:

Misc:

• RSRO Calendar: https://staff.nrao.edu/wiki/bin/view/EVLA/RSROCalendar
• RSRO DnC, C config status: https://staff.nrao.edu/wiki/bin/view/EVLA/2010CRSROStatus
• Test Project Codes == *TRSR*
• Guidelines for RSRO observing: https://staff.nrao.edu/wiki/bin/view/EVLA/RSROObservingPreparationGuidelines
• Notes:
  • Current Residents
    • Satoko Takahashi (POC: Juergen Ott); area(s): continuum, mosaicing; 10B-126 (AT380): A Millimeter Study of the Embedded Star-Cluster in the Orion Molecular Cloud.
      • Hauyu Liu (POC: Juergen Ott); area(s): continuum, mosaicing
    • Greg Hallinan (POC: Kumar Golap); area(s):; 10B-209 (AH1020): Broadband Periodic Dynamic Spectra of Ultracool Dwarf Pulsars
    • Adam Leroy (POC: TBD); area(s):; 10A-196 (AL746): Resolving the Starbursts in Nearby LIRGs and ULIRGs
    • Jill Knapp (POC: Rupen/Claussen); area(s): recirculation; IRC+10216 demo science; 10B-200;10B-186. Welcome again.

Demo Science (Chandler/Condon): Project Codes: *TDEM*

• • Status: Complete; filling in some hours during move. Nice coarse spectra from IRC+10216: https://bugs.nrao.edu/browse/ECDATA-287
  • Update for C configuration coming from Bob.

Commissioning Group updates

• OSRO User Support (van Moorsel): Link: https://staff.nrao.edu/wiki/bin/view/EVLA/OSROTests
  • Notes:
• Observing Calibration/Flagging Strategies:
  • High Frequency (Claussen/Sjouwerman):
    • Notes:
  • Mid Frequency (Dhawan):
    • Notes:
  • Low Frequency (Momjian):
    • Notes:
• Observing Modes
  • Spectral Line (Goss/Ott):
    • Notes: Updated testing list. Initial results (Momjian).
  • Polarization (Myers/Perley): Link: https://staff.nrao.edu/wiki/bin/view/EVLA/PolarizationModes
    • Notes:Draft guidelines for calibration updated; planned test observation Thursday to compare calibration strategies.
  • Planetary (Butler):
    • Notes:
  • Scheduling/Rapid Response (Frail): Link: https://staff.nrao.edu/wiki/bin/view/EVLA/RapidResponseObserving
    • Notes:OST deployment plans.
  • Adv: Solar (Perley):
    • Notes:
  • Adv: Phased array/VLBA/VBLI (Deller, Lazio): Link: https://staff.nrao.edu/wiki/bin/view/EVLA/PhasedArray
    • Notes:
  • Adv: Pulsar (Brisken):
  • Adv: Astrometry (Mioduszewski):
• Calibrator Models
  • Notes:
• HPC (Bhatnagar/Owen):
  • Notes:
• Algorithm (Bhatnagar, Owen):
  • Notes:

AOB

Misc Actions

• [Frail/Butler]: Enable restrictions based on proximity to sun; review OST weather trending.
• [McMullin/Frail]: %REDWrite up disposition of RR items.
• [McMullin]: Confirm restriction of RSRO scan length at 90 s
• [Owen]: Outline issue with 90s scan length restriction.
• [McMullin]: Review/recover metrics for Priority 0 items.
• [Perley/McMullin]: SPW/IF/BB lexicon and mapper
• Development of WIDAR guidelines document (Michael)
• List of known problems (can be used by OSRO commissioning team (van Moorsel)
  • • Med Priority [Rupen]: X, Ku band subbands are inverted (IF 1 is labelled as IF4, IF2 as 3, IF3 as 2, IF 4 as 1). Noted that this had been tested but there were enough changes to warrant a re-do.
    • Med Priority [TBD]: Phase offsets within scans (phase jump at scan boundaries). R&L phase offset on some scans - probably L302 LO problem, needs tracking down. MR: Seen on EA07, EA25 (both RR and LL)
    • Med Priority [TBD]: Added. Phase change when frequency changes (needs to be tested).
    • Med Priority [TBD]: Anti-aliasing does not behave as advertised.
    • Low Priority [TBD]: First scan often bad.
    • Low Priority [TBD]: Phase (and amp) wobbles; long history.