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SPHEREx Quick Release (QR): An All-Sky Spectral Survey

astronomy imaging object detection satellite imagery survey

Description

The Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer (SPHEREx) is a NASA Astrophysics Medium-class Explorer (MIDEX) mission launched in March 2025. During its planned two-year mission, SPHEREx will perform the first ever all-sky spectral survey in the optical to near-infrared (0.75-5 microns). SPHEREx Quick Release (QR) is the first data release. SPHEREx data will be used to probe inflation and the early universe, trace the history of galactic light production, and investigate the origin of planetary systems and biogenic ices, in addition to contributing to many other astrophysics research topics.

Update Frequency

SPHEREx QR is updated weekly. The data may also be presented in new ways as the products become available.

License

https://irsa.ipac.caltech.edu/data_use_terms.html

Documentation

https://irsa.ipac.caltech.edu/Missions/spherex.html

Managed By

See all datasets managed by IRSA.

Contact

https://irsa.ipac.caltech.edu/docs/help_desk.html

How to Cite

SPHEREx Quick Release (QR): An All-Sky Spectral Survey was accessed on DATE from https://registry.opendata.aws/spherex-qr. If you use SPHEREx data from the IRSA archive, please cite the appropriate Digital Object Identifier: 10.26131/IRSA629, include the following acknowledgement: "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.", and follow the IRSA acknowledgement guidelines.

Usage Examples

Tutorials

Resources on AWS

  • Description
    Spectral Images: Calibrated Spectral Images plus per-pixel status and processing flags, variance map, zodiacal model, exposure-averaged PSF, and wavelength WCS. Multi-extension FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/level2
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/level2/
  • Description
    Absolute Gain Matrix: Pixel-to-pixel gain variations within a single spectral channel and relative gain differences across channels. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/abs_gain_matrix
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/abs_gain_matrix/
  • Description
    Exposure-Averaged PSF: Wavelength-dependent point spread function (PSF) estimates on a fine positional grid across each detector. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/average_psf
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/average_psf/
  • Description
    Dark Current: Per pixel dark current. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/dark
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/dark/
  • Description
    Dichroic: Map of pixels affected by flux attenuation due to the dichroic filter. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/dichroic
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/dichroic/
  • Description
    Gain Factors: Gain factors for each detector. YAML format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/gain_factors
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/gain_factors/
  • Description
    Non-functional Pixel Map: Map of permanently non-functioning pixels. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/nonfunc
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/nonfunc/
  • Description
    Non-Linearity Correction: Corrections applied to compensate for detector non-linearity due to gain degradation. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/nonlinear_pars
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/nonlinear_pars/
  • Description
    Readout Noise: Per-detector read noise maps. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/readnoise_pars
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/readnoise_pars/
  • Description
    Spectral WCS Map: Detailed World Coordinate System (WCS) map. FITS format.
    Resource type
    S3 Bucket
    Amazon Resource Name (ARN)
    arn:aws:s3:::nasa-irsa-spherex/qr/spectral_wcs
    AWS Region
    us-east-1
    AWS CLI Access (No AWS account required)
    aws s3 ls --no-sign-request s3://nasa-irsa-spherex/qr/spectral_wcs/

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