SSDF: Spitzer-South Pole Telescope Deep Field Infrared Catalog

The Spitzer-South Pole Telescope Deep Field (SSDF) is a 94-square-degree infrared survey of extragalactic sky, the largest such survey completed outside the Milky Way midplane. It was produced by NASA and integrates observations from multiple facilities including the South Pole Telescope, Herschel/SPIRE, XMM, VISTA, and the Australia Telescope Compact Array. The dataset was last updated on March 13, 2026.

Use Cases

• Identify and characterize galaxy clusters based on multi-wavelength observations.
• Study the baryon budget in the universe by correlating infrared data with millimeter and X-ray observations.
• Train machine learning models for galaxy classification using panchromatic source catalogs.
• Conduct cross-survey analysis by matching sources across infrared, near-infrared, and radio wavelengths.

Strengths

• Covers a wide 94-square-degree area, making it the largest IRAC survey outside the Milky Way midplane.
• Integrates data from multiple observatories, providing a panchromatic view from X-ray to radio wavelengths.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observational survey using the Spitzer Space Telescope's IRAC instrument at 4.5 microns.

Time Range

null

Freshness

Last updated 2026-03-13 18:33:58.518676; freshness should be verified.

Geography

Centered at celestial coordinates 23:30,-55:00 in an extragalactic field.