Spitzer Extragalactic First Look Survey: IRAC Bandmerged Catalog

A mid-infrared catalog of extragalactic sources from the Spitzer Space Telescope's First Look Survey. The 67-hour survey covers 4 square degrees and aims to characterize source populations down to sub-millijansky levels. It was conducted by NASA in late 2003 as one of Spitzer's first observations after Science Verification.

Use Cases

• Characterizing extragalactic source populations based on mid-infrared imaging.
• Cross-matching infrared sources with ancillary optical and radio data mentioned in the description.
• Analyzing the properties of faint, sub-millijansky level sources detected by IRAC.

Strengths

• Covers 4 square degrees of sky, providing a substantial survey area.
• Integrates ancillary data from ground-based optical and radio telescopes.
• Observed for 67 hours, suggesting deep imaging.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to a single-epoch survey from 2003.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Imaging from the Spitzer Space Telescope's IRAC and MIPS instruments.

Time Range

Observations made after Science Verification at the end of November 2003.

Freshness

Last updated 2026-03-13 17:27:10.917218; freshness should be verified.

Geography

Centered at celestial coordinates J1718+5930.