Spitzer Extragalactic First Look Survey: Infrared Source Catalog

A 67-hour survey conducted in late 2003 with the Spitzer Space Telescope's IRAC and MIPS instruments, characterizing extragalactic sources down to sub-millijansky levels in the mid-infrared. The dataset covers 4 square degrees of imaging centered at J1718+5930 and includes ancillary ground-based optical and radio data. It was produced by the National Aeronautics and Space Administration (NASA).

Use Cases

• Characterize extragalactic source populations based on mid-infrared imaging.
• Cross-match infrared sources with ancillary optical and radio telescope data.
• Study faint, sub-millijansky level astronomical objects using the IRAC Ch4 band.

Strengths

• Covers 4 square degrees of sky imaging.
• Includes ancillary data from ground-based optical and radio telescopes.
• Observed with Spitzer Space Telescope instruments after Science Verification in November 2003.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Imaging from the Spitzer Space Telescope's MIPS and IRAC instruments, supplemented by ground-based optical and radio data.

Time Range

Observation likely occurred after Science Verification in late November 2003.

Freshness

Last updated 2026-03-13 19:34:26.698786; freshness should be verified.

Geography

Centered at celestial coordinates J1718+5930.