SSDF: Spitzer-South Pole Telescope Deep Field Infrared Catalog

94 square degrees of extragalactic sky observed at 3.6 microns, making it the largest IRAC survey outside the Milky Way midplane. The National Aeronautics and Space Administration compiled this catalog as part of a panchromatic project combining data from multiple telescopes. It was last updated on March 13, 2026.

Use Cases

• Identify and characterize galaxy clusters based on infrared emission.
• Study the baryon budget in the universe by correlating infrared data with millimeter and X-ray observations.
• Analyze galaxy evolution across a broad wavelength range using the panchromatic multi-facility data mentioned in the description.
• Conduct large-area extragalactic surveys for statistical analysis of cosmic structure.

Strengths

• Covers 94 square degrees, the largest IRAC survey of its kind.
• Integrates observations from multiple facilities including South Pole Telescope, Herschel/SPIRE, XMM, VISTA, and ATCA.
• Centered at a specific celestial coordinate (23:30,-55:00) for coordinated multi-wavelength study.

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

Observations from the Spitzer Space Telescope's IRAC instrument.

Time Range

null

Freshness

Last updated 2026-03-13 18:21:43.932215; freshness should be verified.

Geography

Extragalactic sky centered at RA 23:30, Dec -55:00.