• @Ramesh Bhat 

• @Bradley Meyers 

• @Christopher Lee 

• @Garvit Grover 

• Jared Moseley

• Ethan Dowley

• @Dilpreet Kaur 

• @Nick Swainston (Deactivated) 

• @Susmita Sett 

• @Mengyao Xue 

• @Marcin Sokolowski (Deactivated) 

• Ryan Shannon

• Qiuyang Fu

• General project updates

  • Data acquisition continuing and should be complete this year (estimate 3.9 PB total)

  • Nick submitted thesis, working at OzGrav, will be at Curtin occasionally

  • Sammy moved to SC1 (long-period transients)

  • Ethan completed summer project

  • Chris commenced PhD in March

  • Chia Min Tan joining group in second-half of 2023

• Paper publication updates

  • Papers 1 & 2 now published in PASA

    • <links to papers>

  • News stories about description papers by SpaceAustralia, shared by MWA, ICRAR, Curtin, and AAL mini-story also released

    • <links to stories>

  • Parul's paper of GMRT follow-up of J0026-1955 now submitted to MNRAS (focus on sub-pulse drifting behaviour)

• Proposals

  • MWA observations okay

  • GMRT Cycle 44 for pulsar  5

  • Parkes proposal for pulsars 4 and 5

  • ASTAC proposal getting in for 2023B compute on OzSTAR

• Data acquisition and quality checking

  • Observing 19 pointings this semester, moving into the Galactic plan

  • Using manual checks of data for quick looks and data quality assurances

    • P11 seems okay, but may need to be re-observed due to large number of flagged tiles

    • P12 was re-observed after network failure, data looks good.

    • P13 /& P14 initial verification okay, need to double check

    • O01 seems okay

    • O02 no detections so far - needs more careful inspection

    • O03 initial verification okay, need to double check

    • O04 okay, but seems to be some data corruption at the bottom of the band

      • Needs more investigation, but likely needs to be rescheduled

    • O05 & O06 being processed now, O07 & O08 being observed imminently

• PhD project updates

  • CDMT dev. for MWAX data, creating pipeline in progress

  • Focus on finding binary pulsars in SMART and beyond

Ryan: Do the test obs S/N match what is expected?
Chris: Yes, they compare well to Mengyao's previous census

• GitHub repository for deep pass planning: https://github.com/CIRA-Pulsars-and-Transients-Group/SMART_deep_planning (private – request access from Bradley)

• Trying to get software environment on OzSTAR updated, running into some issues with the beamformer

  • Will need to resolve this in order to start some test runs of first-pass search by on 80-min data to see how things scale

  • Use this to help prune the second-pass plans to something feasible (i.e., Are there too many DM trials? How is FFA performing? Single-pulse search?)

Ryan: Planning to use current/new OzSTAR?
Bradley: Currently planning on staying with current OzSTAR
Nick: Could use both, since GPUs on both are nVidia
Ramesh: Data base is kind of a road block, ASTAC proposal will be honest and looking for just testing/benchmarking

• PSR #5 follow-up and analysis

• Galactic plane monitoring discovery and SMART follow-up

  • Image plane transient, bright single pulses in pulsar data follow-up

  • Used PINT to get a timing solution from SP toas

  • Looking into spectral nature

  • Writing up discovery paper, maybe get Parkes follow-up

Garvit: sub-pulse drifting?
Bradley: actually it's just bright pulses occurring on tail of pulse - maybe like GP?
Susmita: maybe green time on Parkes?

• SGAN ML classification for SMART

  • Extending previous work from Isaac

  • Redesigned the data management within the workflow, made a Docker image with all relevant dependencies

  • Some testing but not on real database or supercomputing systems, but containerisation should make it easier

    • Updated to work with the new api for the database

  • Still needed to test on Garrawarla or OzSTAR

  • Still need to finalise training sets, but looks promising, expect accuracy ~90% or above

Ramesh: Even just 90% accuracy will be a big improvement since we're just using the LOFAR classifier. Still needs some attention though, so will need to see how we can get this to a usable form. Potentially Chia Min can push this to completion.
Ethan: Certainly more detail in report, as well.

• Draft ideas for project logo

  • Hand drawn draft and digital drafts (Wix? logo design website)

  • Contact with ideas via CSIRO email, please. Dilpreet.Kaur@csiro.au

Bradley: Should we also involve the ICRAR T&I team in this? They have expertise in this field and can take Dilpreet's designs and adapt. Tend to like the simpler/crisp designs.
Ramesh: Agree that simple is good. MWA dipole as M is cute. Pulsar lighthouse profile somewhere or even profile is good. Certainly should engage ICRAR T&I for help or ideas.

• uGMRT follow-up in Band 3 and UWL follow-up with Murriyang

  • non-detection at the MWA-determined position (good to ~2 arcmin) 

  • Imaging (Band 3) of visibility data revealed 6 compact sources, in the ~0.5 - 4 mJy range

  • pulsar detection in the faintest source (~0.5 mJy), which is D

• meanwhile, imaging of the 2nd observation (13May) revealed a brighter source (called G), ~5 mJy at 400 MHz

• real-time folding on G (on 20 May) with approx P and DM showed clear detection of the pulsar

• dynamic scheduled at both GMRT (and also Parkes, which was co-observing) for multiple scans on G

• data are being analysed, the first scan shows bright detection (after a good round of RFI clean) 

• subsequent scans also analysed, turned into pulse stack, pulsar is seen, though data quality is not the best 

  • need more RFI cleaning

  • also look at the data from other beams

Mengyao: the 2nd bright source in the field; has the source G anything to do with that? 

Ramesh: very unlikely, and it is definite that G is the pulsar, given the size of the PA beams (~1-2 arcmin) 

• Database and web-app now in ADACS/Data Central hands - expect deployment by July (Bradley)

  • Not a show-stopper if it drags slightly. We can deploy "anywhere" and simply ingest into the eventual Data Central deployed version

• Data release plans and timeline (Ramesh)

• Publication policy ideas (Bradley)