Present:

Minutes

Ramesh's update

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

Chris's update

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

Bradley's update

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

Garvit's update

PSR #5 follow-up and analysis

Jared's update

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?

Ethan's update

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.

Dilpreet's update

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.

Pulsar 5 follow-up (Ramesh & Garvit)

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)

Discussion items

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)

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