SHELA-SDSS Stripe 82: Infrared Galaxy Catalog Covering 24 Square Degrees

The Spitzer/HETDEX Exploratory Large-Area (SHELA) survey catalog covers approximately 24 square degrees at 3.6 and 4.5 microns. The data is 80% complete to a limiting magnitude of 22.0 AB mag and reaches sensitivities of 1.1 microJy. This dataset was produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Cross-match galaxies across infrared and optical surveys based on the overlapping SDSS Stripe 82 footprint.
• Study galaxy properties and evolution using dual-band infrared photometry at 3.6 and 4.5 microns.
• Perform statistical analyses of galaxy populations based on the catalog's stated completeness and sensitivity limits.

Strengths

• Covers a large area of approximately 24 square degrees.
• Provides dual-band infrared data at 3.6 and 4.5 microns.
• Reaches a stated sensitivity of 1.1 microJy in both bands.
• Has defined completeness levels of 80% to 22.0 AB mag and 50% to 22.6 AB mag.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is stored in a BIN format, which may require specialized tools for access.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observational data from the Spitzer Space Telescope, processed into a catalog.

Time Range

null

Freshness

Last updated 2026-03-13 17:31:52.783399; freshness should be verified.

Geography

Covers the Sloan Digital Sky Survey 'Stripe 82' region.