SERVS: Spitzer Extragalactic Infrared Survey Catalog at 4.5 Microns

The Spitzer Extragalactic Representative Volume Survey (SERVS) program conducted deep infrared observations of five extragalactic fields. This catalog contains objects detected at 4.5 microns with a signal-to-noise ratio greater than 5, providing a deeper, single-band dataset for cross-matching. It was produced by the National Aeronautics and Space Administration and last updated in March 2026.

Use Cases

• Cross-matching infrared sources with reliable near-infrared catalogs based on the single-band detection criteria.
• Conducting statistical studies of extragalactic objects based on the high-reliability single-band flag (REL=1).
• Analyzing galaxy populations in deep survey fields like ELAIS-N1 and the Lockman Hole based on the described coverage.

Strengths

• Data is derived from the Spitzer Space Telescope's IRAC instrument, a recognized astronomical observatory.
• Catalog applies a signal-to-noise cut (CSNR > 5) and excludes low-coverage edges (POLY=1) for reliability.
• Covers five established extragalactic survey fields: ELAIS-N1, Lockman Hole, XMM, ELAIS-S1, and CDFS.

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 observational bias inherent to the specific infrared bands and selected fields.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Spitzer Space Telescope's IRAC instrument at 3.6 and 4.5 microns.

Time Range

null

Freshness

Last updated 2026-03-13 19:51:15.670499; freshness should be verified.

Geography

Five extragalactic fields: ELAIS-N1, Lockman Hole, XMM, ELAIS-S1, and CDFS.