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### README for SDR3 point source input catalog ###
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This catalog includes point sources that were added to the CEERS NIRCam imaging simulations. Mirage adds real point sources with magnitudes V<16 based on RA,Dec from 2MASS, WISE, and Gaia. We added fainter point sources (16 < V < 29) using the Besancon Model to approximate the correct stellar density and luminosity distribution in the EGS field.

The catalog is available as FITS table (ptsrc_SDR3.fits) and 
an ASCII table (ptsrc_SDR3.cat).

The catalog contains the following columns:
    id             n/a              running ID number
    ra             [degree]         ra positions in sky
    dec            [degree]         dec positions in sky
    NIRCam_F115W   [Vega mag]
    NIRCam_F150W   [Vega mag]
    NIRCam_F200W   [Vega mag]
    NIRCam_F277W   [Vega mag]
    NIRCam_F356W   [Vega mag]
    NIRCam_F410M   [Vega mag]
    NIRCam_F444W   [Vega mag]


References:
- Adding foreground point sources to Mirage: https://mirage-data-simulator.readthedocs.io/en/latest/catalog_creation.html#foreground-stars
- The Besancon Model: https://model.obs-besancon.fr/