SERVS: Spitzer Infrared Catalog for the Lockman Hole Field

Spitzer Extragalactic Representative Volume Survey (SERVS) provides deep 4.5 micron observations of five extragalactic fields, including the Lockman Hole. This single-band catalog from NASA prioritizes depth and statistical completeness by including objects with a signal-to-noise ratio greater than 5 and excluding low-coverage edges. It is designed for cross-matching with other reliable catalogs or for statistical studies requiring a high number of potential matches.

Use Cases

• Cross-matching extragalactic objects with near-infrared or other wavelength catalogs based on the single-band, high-completeness design.
• Statistical studies of galaxy populations in deep infrared fields based on the catalog's reliability flag and coverage criteria.
• Analyzing the properties of faint infrared sources in the Lockman Hole field based on the deep 4.5 micron observations.

Strengths

• Data originates from the Spitzer Space Telescope's IRAC instrument, a NASA mission.
• Catalog is cut at a signal-to-noise ratio (CSNR) > 5, providing a defined quality threshold.
• Low-coverage edge areas are omitted (POLY=1), focusing on reliable survey regions.

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 extragalactic fields surveyed.

Provenance

Source

National Aeronautics and Space Administration

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 16:45:17.354957; freshness should be verified.

Geography

Covers the Lockman Hole extragalactic field, one of five fields in the SERVS survey.