SPHEREx D2 survey collection

During its planned two-year mission, SPHEREx will obtain 0.75-5 micron spectroscopy over the entire sky, with deeper data in the SPHEREx Deep Fields. In October 2025, IRSA began distributing SPHEREx spectral image data processed with substantially improved calibrations.

This new processing, referred to as QR2, includes reprocessed versions of all spectral image data acquired since the start of the mission.Original acknowledgement for data: This publication makes use of data products from the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx), which is a joint project of the Jet Propulsion Laboratory and the California Institute of Technology, and is funded by the National Aeronautics and Space Administration.