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Telecon2011Sep07

VLBI teleconference, 07 September 2011

12.00 Perth, 14.00 Eastern Summer Time, 16.00 New Zealand (04.00 UT)

Phone:

Meeting ID: 3824

Chair: Tasso Tzioumis

Attendance: Cormac Reynolds, Hayley Bignall (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards (CASS Marsfield); Jamie McCallum, Brett Reid (UTas); Jamie Stevens, Yiannis Gonidakis (CASS Narrabri)

Apologies: Shinji Horiuchi (Tid - report provided); Simon Ellingsen (UTas); Shaun Amy (CASS)

Agenda

• Debrief from recent VLBI sessions (July-August 2011)
  • 20-26 July 2011
  • 12-15 August 2011
• Reports from observatories & correlator(s)
  • ATNF
  • UTas
  • Curtin
  • Tid
  • NZ
  • AuScope
  • Hart
• Planning for next VLBI session(s)
  • 10-15 November 2011
    • Schedules
    • Telescopes
    • Observers
  • March 6-11 2012
  • General comments
• e-VLBI developments/demos
  • official e-VLBI demo to Hobart
  • e-VLBI to Brazil
  • ASKAP network?
• * Review of Actions from last meeting 18 July 2011
• Any other issues

Actions arising

CARRIED FORWARD/UPDATED

• 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) - Continuing
  • Arrange ATOA on-line access to archive (ATNF)
• Copy LBA data archive from Curtin to ATNF (Curtin, Chris) continuing
• Guidelines for phasing the atca more often during vlbi observations (ATNF) - to be revisited
• Implement upgrade for programmable cable changes on VLBI DAS. (Chris, Jamie S) continuing
• Contact Peter Mirtchin re DAS remote cabling changes via VSIC (Tasso)
• Update Parkes VLBI notes on Wiki (Jamie, JER, Tasso)
  • Mk5 notes for Parkes on Wiki (Chris, JER, Tasso)
  • Parkes Calibration notes (JER, Ettore)
• Investigate/implement mixed mode correlation (64 MHz & 4 x 16 MHz) at Curtin correlator (Cormac, Chris) continuing
• Proposal for VLBI with GMRT for next round (All) continuing
• Follow-up of zoom-modes for VLBI on atca (Jamie, Tasso) Continuing
• Feed-back on tied-array operation (correlator)
• Report on possible persistent frequency problem at Cd (correlator)
• Ww issues at X-band such as pointing to be addressed (AUT) - Huge progress
• Get AuScope fix for Elevation encoder drift to NZ and Parkes (Jim) done
• Try automatic pcal via schedules on atca (Jamie S)
• Investigate sideband separation at atca (weak fringes seen on inversion) (Chris, Cormac, Jamie)
• Need to train observers for all antennas as more remote observing is anticipated (Tasso) continuing
• Transfer of LBA archive from Curtin to ATNF needs route. Firewall issues? (Chris, Shaun)

NEW ACTION ITEMS

• Need 1 Gbps access to Mk5b unit at Parkes. (Chris, Shaun) done
• Acquire 3 TB portable eSATA disks for vlbi data transfers (e.g. ASKAP) (Tasso, Chris) done
• Check Mk4 formatter at Hobart for large (~10 usec) clock jumps on 16 MHz bands (UTas)
• Clarify mode-settings and channel ordering on the Mk5b at Parkes. May need tests with drudg and/or test-tone+autocorrelation (Chris)
• Check with AUT group re Ww issues with DBBC and X-band pointing (Tasso)
• Ask PIs to check Wiki-pages for final setup verification (Cormac, Phil)
• Trial shipping of MK5 disks from Parkes and Tid to Hobart for e-transfers (Chris, Shinji)
• Verify polarisation status of Tid 70m receivers at S and X (Tasso, Shinji)
• Organise e-VLBI demo with Brazil (Tasso)
• Check on e-VLBI demo to Hobart (Tasso, Chris, Simon)
• Provide Tsys recording info as per Tingay email (Chris)

Next meeting: 08 November 2011, 13:30 Sydney summer time.