Phone:

Meeting ID: 4840

Chair: Tasso Tzioumis

Attendance: Cormac Reynolds, Hayley Bignall (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards, Giannis Gonidakis, John Reynolds (CASS Marsfield); Jamie Stevens (CASS Narrabri); Shinji Horiuchi (CASS Tidbinbilla); Brett Reid, Bev Bedson, Mac?? (UTas Ceduna); Jamie McCallum, Joe Dawson, Stas Shabala (UTas)

Apologies: Steven Tingay (Curtin)

Agenda

• Planning for next VLBI session(s)
  • September 15-19, 2012 LBA session
    • Schedules
    • Telescope support
    • Fringe testing
    • Observers
    • Disks
    • L-band Cd testing
    • ASKAP support
    • AuScope participation
    • Wiki logs
    • Any other issues

• Upcoming RadioAstron observations
• ATCA/Mopra/Tid 32GHz test observations?
• 9-16 November 2012 LBA session
• 14-21 March 2013 LBA session.

• Future of Data transfer.

• News and Reports from observatories & correlator(s)

• e-VLBI developments/demos

• Future plans: LBA wide-banding?
  • telescope issues
  • correlator issues
  • e-VLBI

• Next DIFX Developers Workshop 24-28 September, CSIRO, Sydney.

• Next e-VLBI/VLBI workshop. Haystack 22-24 October. Followed by Back-end compatibility testing.

• Next LBA operations/technical/eVLBI meeting. Hobart 12-13 February 2013??

• Review of Actions from meeting on 16 August 2012

• AOB

Actions arising

CARRIED FORWARD/UPDATED/CONTINUING

• Consolidation of the LBA Archive to include all ATNF + Swinburne + Curtin correlated LBA data. Should also add in eVLBI output data. Maintain complete archives at Curtin and ATNF (ATNF/Curtin)
  • ATNF to develop online access to this archive (ATNF)
  • Arrange ATOA on-line access to archive (ATNF)
• Copy LBA data archive from Curtin to ATNF (Curtin, Chris)
• Transfer of LBA archive from Curtin to ATNF needs route. Firewall issues? (Chris, Shaun)
  • Check with Vince re grid-ftp (Tasso, Chris)
  • Push e-VLBI archive to Curtin (Chris)

• Phasing the ATCA often during vlbi observations (ATNF)
  • Try automatic pcal via schedules on atca (Jamie S)
  • test time for K-band tied-array phase tests at ATCA (Jamie, Richard)
  • Implement automatic re-phasing of tied array at ATCA (Jamie, Chris)
  • Warn PIs to re-phase array in schedules. Need 2-3 mins (Phil)

• Need to train observers for all antennas as more remote observing is anticipated (Tasso) continuing

• Investigate Rx for Methanol at ASKAP. Very desirable and usable. (Tasso)

• CABB test version records no Tsys. Need to fix before LBA session. Consult with WEW.(Jamie)

• Brazil e-VLBI (Tasso)

• VPAK transfers. Future? (Tasso)
  • Evaluate effort for data Xfers to Petabyte store. Include UTas, NZ and South Africa (Chris, Jamie, Cormac)

• Need RTFC to Tid (Chris, Shinji)
  • Train Shinji? (Chris)

• For Mk5 observations at Parkes 2 people are not enough. Need more observers (GA, CASS)

• Storage needs at antennas (ATNF)

• 32 GHz VLBI tests
  • Check for frequency offsets at ATCA. Talk to engineers. (Jamie)
  • 32 GHz radiator at ATCA?
  • testing?

• Check for Cd stability improvements after fixed H-maser. (Bad internal connections?) (Brett)

• Commission Cd L-band system. Underway. (UTas)

• Mixed mode correlation into RTFC (Cormac, Chris)

• MUST fill in WIKI logs for ALL observations. Lack wastes a lot of time. (All)

NEW ACTION ITEMS

• Check that schedules have the 8441 MHz centre frequency set at ASKAp

• Schedule more fringe tests at ASKAP to monitor system stability (Tasso)
  • Develop procedures for mixed-mode correlation tests (Chris, Cormac)

• L-band tests with Cd for Rx commissioning
  • Prepare schedules for possible Friday slots (Chris)

• Develop Java-scripts for rtfc control (Chris, Jamie)

• Check disks for Yd antenna for run (Jamie M)
  • Check disks shipped from Curtin to Hobart (Jamie M)

• Develop procedures for phase-tying at the ATCA (Jamie, Chris)

• Tweak Ojha schedules for Mk5 data transfer for rtfc (Cormac, Chris)

• Revised schedules to be circulated (Phil)

• Check new correlator config for VLBI at ATCA (Jamie)

• Check on data transfer issues
  • Xfers con trolled from Curtin? (Cormac)
  • Communicate with VPAK (Tasso)

STANDING ACTION ITEMS

• Participate in DiFX meeting 24-28 September 2012 (All)
• Participation in Haystack e-VLBI workshop 22-24 October (All)
• LBA ops/technical/e-VLBI annual meeting in Hobart 12-13 February? (All)

Next meeting: TBD (Tuesday 16 October 2012?)