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### Raw Simulated NIRCam imaging for CEERS Pointing 5 ###
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Here we provide raw and noiseless seed images for CEERS 5
images in the F150W and F277W filters. 


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## File names

jw0134500500*_uncal.fits - raw images, these can be run through all stages
                           of the JWST Calibration Pipeline

jw0134500500*_galaxy_seed_image.fits - noiseless seed image of galaxies 
                                       added to each detector image

jw0134500500*_ptsrc_seed_image.fits - noiseless seed image of point sources
                                       added to each detector image

custom_gains - directory of custom gain maps appropriate for the 


MIRAGE assumes a single gain value for each detector when generating 
simulated images, whereas the pipeline will use reference gain maps that
vary across the detector. We therefore recommend overriding the gain 
reference files when running Stage 1 of the pipeline. The gain reference
files are used in the Jump and RampFit steps. We provide custom gain 
maps that match the input values assumed by MIRAGE:

gains_v2.2.1/ - directory of custom gain maps that match the input 
                mean gain values from MIRAGE. 

As an example, when running Stage1 (calwebb_detector1) via 'strun' on the 
command line, you can override the gain maps used for the NRCA1 detector with:
--steps.jump.override_gain='gains_v2.2.1/jwst_nircam_gain_nrca1.fits' --steps.ramp_fit.override_gain='gains_v2.2.1/jwst_nircam_gain_nrca1.fits'