COSMOS-Web Public Data Release 1

This page hosts the version 1.0 public data release for COSMOS-Web, including:

  • Reduced NIRCam and MIRI mosaics
  • Aperture and model-based photometric catalogs
  • Photometric redshifts & physical properties for ~780k galaxies
  • Interactive map viewer over the full field

Updates

  • 2025-12-10: Large scale structure density maps up to z = 7 are now available under additional data products.
  • 2025-11-19: Galaxy group catalogs from 2 < z < 3.7 are now available under additional data products.
  • 2025-11-19: HSC and JWST starmasks are now available under catalog/download.
  • 2025-11-19: Point spread functions used for SE++ model-based photometry are now available under catalog/download.
  • 2025-06-15: MIRI F770W mosaics for A5 and B10 have been updated in-place to fix an astrometry issue in visit 114.
  • 2025-06-26: MIRI F770W mosaic for tile B9 has been updated in-place include the previously missing visit 32.