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