PSF Central
Characterizing the Chandra PSF
Besides simulating the Chandra PSF, there are a few tools that are used to characterize the PSF:
Tool/Script | Description | Related Threads |
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Creates a PSF-size map for each pixel in an image. [Version: full-size] Image Smoothing with a PSF map |
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Creates a region file that shows the location of the HRMA PSF optical artifact for a given observation, to help rule out mis-identification of a physical source feature at sub-arcsecond scales. [Version: full-size] PSF Asymmetry Region |
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Python module that interpolates the approximate size of encircled counts fraction of the Chandra PSF, based on calibration radially enclosed energy fraction (REEF) tables. These tables were generated assuming a flat detector, which is accurate for HRC and ACIS-S3, but the other ACIS CCDs are tilted, which causes additional asymmetries. |