SERVS ELAIS-N1: High-Reliability Infrared Galaxy Catalog from Spitzer

The Spitzer Extragalactic Representative Volume Survey (SERVS) provides deep infrared observations of five extragalactic fields. This catalog for the ELAIS-N1 field contains matched 3.6 and 4.5 micron sources with a high reliability threshold of >99.9%, requiring detection in both bands with a >10-sigma coverage-weighted signal-to-noise ratio in one. The data was produced by NASA's Spitzer Space Telescope Exploration Science program.

Use Cases

• Selecting high-confidence galaxy samples for population studies based on the >99.9% reliability criterion.
• Analyzing infrared properties of galaxies based on matched 3.6 and 4.5 micron photometry.
• Training object detection models for astronomical surveys using the high signal-to-noise (>10-sigma) detections.
• Conducting cross-matching studies with other wavelength surveys using the defined extragalactic field.

Strengths

• Catalog objects have a stated high reliability of >99.9%.
• Detection criteria require a >10-sigma coverage-weighted signal-to-noise ratio in one band.
• Observations cover five major extragalactic fields, including ELAIS-N1.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Low coverage areas near the survey edges are omitted (POLY_12=1), potentially truncating the spatial sample.

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 18:58:14.348436; freshness should be verified.

Geography

Extragalactic field ELAIS-N1, part of a survey covering five fields including Lockman Hole and CDFS.