SERVS: Spitzer Extragalactic Infrared Survey Catalog for ELAIS-N1

The Spitzer Extragalactic Representative Volume Survey (SERVS) provides deep infrared observations of five extragalactic fields, including ELAIS-N1. This specific catalog contains 4.5 micron data from the Spitzer Space Telescope's IRAC instrument, with objects selected for a signal-to-noise ratio greater than 5. It was produced by NASA and last updated in March 2026.

Use Cases

• Statistical analysis of faint extragalactic sources based on single-band 4.5 micron detections.
• Cross-matching with reliable near-infrared or optical catalogs to identify counterparts.
• Studying galaxy evolution and morphology using deep mid-infrared observations.
• Investigating the properties of objects in the ELAIS-N1 extragalactic field.

Strengths

• Data originates from the Spitzer Space Telescope, a major NASA observatory.
• Catalog is deeper than the 2-band high-reliability version, prioritizing completeness for matching.
• Objects are filtered for a signal-to-noise ratio (CSNR) greater than 5 and exclude low-coverage edge areas.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Objects are from a single infrared band (4.5 micron) without required multi-band confirmation.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Observations from the Spitzer Space Telescope's IRAC instrument as part of the SERVS Exploration Science program.

Freshness

Last updated 2026-03-13 19:23:20.783387; freshness should be verified.

Geography

Extragalactic field ELAIS-N1, one of five fields surveyed.