GNU Astronomy Utilities - Tasks: task #16222, Arithmetic operators to convert...
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task #16222: Arithmetic operators to convert areas for example mag/arcsec2 to counts/pix
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Tue 28 Jun 2022 05:53:47 PM UTC | ||
Should Start On: | Mon 27 Jun 2022 11:00:00 PM UTC | Should be Finished on: | Mon 27 Jun 2022 11:00:00 PM UTC |
Category: | Arithmetic | Priority: | 5 - Normal |
Item Group: | Enhancement | Status: | Postponed |
Privacy: | Public | Percent Complete: | 0% |
Assigned to: | None | Open/Closed: | Open |
Effort: | 0.00 |
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Date | Changed by | Updated Field | Previous Value | => | Replaced by |
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2022-06-28 | makhlaghi | Carbon-Copy | - | ![]() |
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It would be very useful to have operators for converting arcsec^2 to number of pixels, and vice-versa. Based on an input WCS. We currently have the necessary operators to convert magnitudes to counts and vice-versa, but we don't have any for converting common area units.
For example:
This will be useful when we need to convert mag/arcsec^2 into image units: counts/pixel. In fact since this is a common conversion, we can have a high-level operator for it, maybe something like this:
Of course, if an image with WCS is already present in the Arithmetic command, there is no need to use '--wcsfile'.
These can also be available for column arithmetic in Table.