Agenda 240122

Participants

• Pedro Beaklini
• Jan-Willem Steeb
• Joshua Hoskins
• Joshua Marvil
• Victor de Souza Magalhaes

Development

Anouncement

• Progress has been done on the reading of the Near Field ASDMS, however we still aren’t able to use it.
• Updated development plan with links and improved text.

Creation of separated Dev and Main branches

• Pull requests are made to Dev.
• Before release we merge Dev Onto main.
• Releases always come from Main.

Josh H.

Done:

• Minor bug fixes in the logger and auror code.

on going:

• Default gridding size.
• Logger development.
• Work on the client.

Todo:

• Auror and Skriba to graph VIPER.

Victor

Done:

• holog.zarr -> uvhol:
  • From this we discovered that the problem is somewhere in extract_holog (Pedro gets apertures that are basically the same as in astrohack).
• Investigation of UVHOL:
  • Main difference appears to be a time smoothing of the visibilities.

• Tests to try to identify the problems in extract_holog:
  • Use of time centroid of the visibilities rather than initial time.
  • Use of “ideal” directional cosines.
  • Use of polynomial fitting on the pointing (spline).
  • Time smoothing of the visibilities.
  • Time smoothing of the pointing.
• Bugs identified:
  • Usage of SYSTEM_CONFIGURATION scans (pointed by Ryan Berthold, Fixed).
  • Dropping of Antennas would effectively only dropped the last antennas (Fixed).
  • Cell_size and Grid_size input parameter types (fixed, by JH).
  • Automatic determination of grid_size and cell_size fails when SYSTEM_CONFIGURATION scans are dropped (ongoing for JH).

On going:

• ALMA far field calibration:
  • Currently on hold due to the OTF problems.
• Tests to try to identify the problems in extract_holog:
  • Find a way to exclude the L and M excursions to zero.
    • If this works find a generic way to do so.

Todo:

• A release with latest developments before leaving for the holidays.

Validation

Pedro

• Last dataset on X and Ku bands look promissing (Early January 2024).
• No New data during the configuration change due to weather.

Locit demo date

• Mid march at the earliest.

Next Meeting

• VSM can not attend on February 5th or 12th, February 19th is presidents day.
• Meeting in February will depend on the progress on solving the OTF issue.