| 22nd of February 2023 |
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| ASKAP Update for February |
| by Aidan Hotan and Tim Galvin |
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February's
ASKAP update
contains reports on survey data processing and
validation, ongoing efforts to migrate processing to Setonix, and
development activities, including upgrades to ASKAP's holography workflow.
New features have been introduced into the ASKAP beam weights archive that support creation of special weights for holography – the process by which the shapes of the beams used for science observations are measured. When deployed and fully integrated, the new features will allow holography observations to be tracked alongside other beam weights and improve the capacity to select the best matching beam map for use during image mosaicking. Holography observations are automatically scheduled whenever a new set of beam weights are created, every few months. The radar plot above is an interactive visualisation of a workflow that is being managed by phython Prefect. Each box annotated with text represents a unit of work in the workflow, with the interconnecting lines representing a dependency between a set of tasks. In the holography processing pipeline we regard each of the 36 beams separately, before their results are merged together for later processing. This holography processing pipeline is now part of the automated ASKAP processing being carried out at the Pawsey Supercomputing Research Centre. (Image credit: Tim Galvin) |