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Telecon2014Mar27

VLBI teleconference, Thursday 27 March 2014

02:30 UT - 10:30 Perth, 13:30 AEST, 15:30 New Zealand

Meeting ID: 4698

Chair: Tasso Tzioumis

Attendance: Attendance: Cormac Reynolds, Hayley Bignall (Curtin); Tasso Tzioumis, Chris Phillips, Phil Edwards, Jamie Stevens (CASS); Shinji Horiuchi (ATDSCC); Jamie McCallum, Simon Ellingsen (UTas); Oleg Titov(GA)

Apologies:

Agenda

• Debrief Feb - Mar 2014 LBA sessions
  • Telescope issues
    • UTAS
    • ATNF
    • Tid
    • South Africa
  • SOC remote observing
    • ATNF
    • UTas
  • Monitoring
  • Disks
  • Correlator
  • Real-time fringe tests
  • Tests
    • 32 GHz observing?
    • Xcube testing
    • Other testing
• Next LBA session(s)
  • Short LBA sessions
  • 3 April
  • 30 April
  • June 2014 - long sessions
    • 2-5 June
    • 11-14 June
  • Upcoming RadioAstron observations
• e-VLBI developments/demos
• Future plans: LBA wide-banding?
  • Xcube tests
  • telescope issues
  • correlator issues
  • e-VLBI
• Organise scientific meeting in Northern Territory in 2014/2015 ?
• Review of Actions from meeting on 03 December 2013
• AOB

Actions arising

CARRIED FORWARD/UPDATED/CONTINUING

• LBA data archive consolidation and copy at CASS. (CASS, Curtin)
  • LBA data archive. Need ATNF disk space (Chris,Tasso, Shaun) Continuing
• ATCA phasing. Check performance and implementation (Jamie S, Richard) Updated
  • Definitely need >200 mJy calibrators. Stress in documentation. (ATNF)
  • Ask PIs to nominate phase-cals and check fluxes BEFORE scheduled observations (Phil, Jasmie S)
  • Extract phase-cals from Vex files and check at ATCA before run (Chris, Jamie S.)
  • Need at least 6 cycles for auto-phase = 30secs if 5sec integration.
    • Phase-impact on phase-ref and calibration? Phase jumps?
    • consult with Ojha re auto-phasecal for TANAMI (ATNF)
• ATCA Tsys via CABB (CASS) Updated
  • Consult with Carrad and Sault about Tsys implementation on the CABB (Tasso)
• Observer training and remote observing (Tasso) Continuing
• Wiki logs (All) Continuing
  • Log transfers quickly to FTP area and/or Wiki (ALL) Continuing
  • Annual "best" wiki-log competition. To be judged by correlator at annual Ops meetings. (Cormac)
• Pawsey centre access for VLBI and eVLBI (Chris, Cormac) Continuing
• Linear to Circular polarisation conversion. (Chris, Richard, Cormac) Continuing
• Monitoring "check-list" for ATNF telescopes (Chris, Jamie S) Continuing
• For ATCA include in Wiki log: ref ant, pad, tied-array. Default ant03 on W104. (Jamie S, ALL observers)
• Curtin Xcube testing. Unit installe at ASKAP. Commission. (Chris, Cormac, Tasso) Continuing
• On-source info from ATCA. Fix cgi scripts (Chris) Continuing
• DA role during LBA sessions (Phil, Tasso, Jamie S)
• Procedures for raising Ho observers on Skype. Telephone? (UTas)
  • Implement lists on Skype and/or Wiki for observers(ATNF)
• Get Ww FS log comments onto Wiki. Use UTas "floggit" script and automate? (Stuart, Chris, Jamie M.)
• Fix recmon to track correct experiment name, especially due complex recordings for Ellingsen (Chris, Jamie S)
• List Mk5 rtfc times for each observation from schedules (Cormac, Chris)
• RadioAstron schedules and check setups (Chris)
• Use new numbers for ATCA (4077 for DA; 4078 for Observer)
• For wideband systems more efficient to stop data recording in slews/stops AND better effieciency in correlator.
  • Adopt Mk5 systems?
• Cd upgrades
  • DAS replacement by dBBc (UTas).
  • L-band sensitivity measurements. (UTas)
• Tid tests for JPL DAS and Mk5c recorder
  • Let JPL know re VDIF format (Chris)
  • Web monitoring? Ports?
• ASKAP VLBI monitoring (Chris, Jamie S)
• Xcube testing (Chris)
• CABB wide-band proges?
  • Email Tim Bateman and get report (Tasso)

NEW ACTION ITEMS

• Cd drive-PC. Fix in short-term. Replace long-term? (UTas)
• Ho, Cd need setup information early. Problems when schedules are late. (Phil, UTas)
• Ensure correct wraps and limits are supported in Vex, especially for At and Mp. (ATNF, Cormac)
• Setup of circ pol hybrids at Mp. Need to tweak (ATNF)
• Tsys logs from Mp may be wrong if polarisation hybrid not setup properly. Need to average the 2 channels (ATNF)
• Mp L-band and X-band low power and no atten to adjust. Check with Jock (ATNF)
• Pks update of documentation. Polarisations are usually swapped. (ATNF, JER)
• Pkvsi1 and pam-store disks dead! Check re backups (ATNF)
• Antenna positions at ASKAP. May need geodetic run for new antenna. (ATNF, JER)
• Train/qualify more PIs for ATNF remote observing (ATNF)
• Investigate more remobs for UTas telescopes (UTas, ATNF)
• Streamline monitoring. Check ssh tunnel setups. (Jamie + Jamie, Chris)
• Disks to Cd )Hayley)
• grid-ftp on Cortex. Move to new systems (Cormac)
• Supercomputer for DiFX. Approved. Initiate port. (Cormac)
• Coordinate data transfers so full experiments are ready for correlation (All, Hayley)
• Liaise with Ojha re auto-pcal in his observations (ATNF)

STANDING ACTION ITEMS

• Plan for replacements of old LBA DAS and some failing recorders.
  • Plans to replace at each station (UTas, CASS)
• VLBI science meeting in 2015 at Darwin/Katherine (NB. Now in 2015!!)
  • Setup LOC, SOC (Tasso, Jim)

Next meeting: TBD