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VLBI teleconference, 22 March 2012

10.30 Perth, 13.30 Eastern Summer Time, 15.30 New Zealand (02.30 UT)


Vic:03 9545 8222
NSW:02 9490 8022
ACT:02 6276 6622
Qld:07 3214 2311
WA:08 6436 8844
SA:08 8273 8122
NT:08 8944 8488
Tas:03 6232 5188

Meeting ID: 8211

Chair: Tasso Tzioumis

Attendance: Cormac Reynolds, Hayley Bignall, John Morgan (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards (CASS Marsfield); Brett Reid, Jamie McCallum, Joe Dawson (UTas); Jamie Stevens (CASS Narrabri); Oleg Titov (Geoscience Australia)

Apologies: Steven Tingay (Curtin)


  • Debrief from last LBA session and tests
    • ATNF
    • Tid
    • UTas
    • NZ
    • Hart
    • Curtin
  • Planning for next VLBI session
    • 26 April - 2 May 2012
      • Schedules
      • Telescopes
      • Observers
    • General comments
  • Reports from observatories & correlator(s)
  • News from AuScope
  • e-VLBI developments/demos
    • official e-VLBI demo to Hobart
    • e-VLBI to Korea
    • ASKAP network?
  • Future of Data transfer?
  • Report from LBA annual meeting, February 2012
  • Report from VLBA time allocation meeting
  • Next DIFX Developers Meeting
  • Mixed Band Testing
  • LBA monitoring issues
    • Ceduna GPS-maser data
  • Any other issues

Actions arising


  • 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
  • Transfer of LBA archive from Curtin to ATNF needs route. Firewall issues? (Chris, Shaun)
  • Guidelines for phasing the atca more often during vlbi observations (ATNF) - to be revisited
    • Try automatic pcal via schedules on atca (Jamie S)
    • test time for K-band tied-array phase tests at ATCA (Jamie, Richard)
  • Implement upgrade for programmable cable changes on VLBI DAS. (Chris, Jamie S) continuing
    • Contact Peter Mirtchin re DAS remote cabling changes via VSIC (Tasso)
  • 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
  • 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)
  • ATCA timing offset between DAS1 and DAS2 with Huygen's cable. Align before session (Jamie)
  • VSIC needs rewiring before tests (Chris, Jamie)
  • Large (hours) single data files in last session. Software written to split. Need to transfer split files (Chris)
  • DASPRO needs changing on wiki to reflect current practice (Chris, Cormac)
  • Need ASKAP data to Curtin for mixed mode correlator tests (Tasso, Chris)
  • Problems at Ho due to power failure of UPS. May help to have better integration of observing during sessions (UTas, ATNF)
  • Clock problems in Cd continuing. Need attention. (All)
    • Check finer sampling for GPS-Hmaser data (Brett)
    • Check with WEW re any H-maser issues in Cd (Tasso)
    • Email Anton Pavlenko in Russia re H-maser issues (Brett)
    • Organise Russian visit if necessary. (May also check MRO H-maser). (Tasso, Brett)
    • Compare Ho Russian H-maser- GPS with Cd results. Look at IVS data. (Brett, Oleg)
  • Get Mk5 disks to AuScope stations for LBA session (ATNF)
  • Brazil e-VLBI (Tasso)
  • VPAK trnasfers. Sam Morrison till July 2012. Future? (Tasso)
    • Open Ho ports to VPAK (UTas)
  • Organise next DiFX meeting in September (Chris)
  • Participation in Haystack e-VLBI workshop 22-24 October (All)
  • MWA is decommissioning XRAID chassis. Acquire some for spare and extra set at Narrabri (Chris, Jamie)

Next meeting: 23 April 2012

lbaops/telecon2012mar22.txt · Last modified: 2015/12/18 16:39 by