Details
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Feature
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Must have
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Obs Mgt & Controls
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- The developers and the Feature owner have worked through getting the backend code ingested into the SKA repositories
- appropriate warnings about dynamic range limits are reflected in the front end
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1
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1
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0
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Team_BUTTONS
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Sprint 4
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- Sarrvesh added the code to the back-end which now provides the warning message if a bright source is within the HPBW
- If triggered, the warning message is shown in the front-end.
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18.5
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Stories Completed, Outcomes Reviewed, NFRS met, Demonstrated, Satisfies Acceptance Criteria, Accepted by FO
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Sensitivity-calc Team_BUTTONS
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OMC-G2
Description
For each station beam pointing, display a warning message if there are bright off-axis sources within a few degrees from the pointing centre. In the current version, we will use bright off-axis sources > 1 Jy at 150 MHz but this threshold can be refined based on commissioning data post AA2. We won’t include solar system objects in this check, as the scheduler/execution tools should do that before executing the observation.
We will use the Extra-Galactic Catalogue from the MWA GLEAM survey. The attached file ( GLEAM_1Jy_cat.npy
) contains a list of >1 Jy sources in the 147-154 MHz GLEAM catalogue, and this python script ( warn_bright_sources-3.py ) does a simple search based on the specified pointing direction and primary beam size.
FYI: The 1 Jy catalogue was generated using the script extract_bright_sources.py. See inline comments for more information.
Added by p.klaassen after discussion with S.Sridhar, s.breen & A.Biggs: scope increased to include flagging up dynamic range limits (when appropriate) in the front-end of the calculator
