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The
ASKAP update for July includes reports
on ongoing survey operations, maintenance activities,
data processing and quality (and solar interference in particular)
and the SMART
(Survey and routine Monitoring of ASKAP’s RFI environment and Trends)
Observatory Project designed to characterise ASKAP’s RFI
(Radio Frequency Interference) environment.
In the image above, the first column shows visibility data from the shortest
ASKAP baseline during a recent observation as a function of frequency channel and time.
The Sun rises about halfway through and dominates the data when above the horizon.
The second column is a polynomial model of the solar emission made with ASKAPsoft tools,
and the third column shows the residual after subtracting the model from the data.
(Image credit: Alec Thomson)
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