DeepDrill ELAIS S1: Spitzer 4.5 Micron Infrared Source Catalog

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields (DDFs) with greater depth and rapid cadence. This catalog from the Spitzer Space Telescope's Infrared Array Camera (IRAC) provides 4.5 micron observations of the ELAIS-S1 field, expanding coverage from the earlier SERVS survey. The combined DeepDrill and SERVS data cover the footprints of LSST DDFs in three fields, including ELAIS-S1.

Use Cases

• Training object detection models for infrared sources based on Spitzer IRAC observations.
• Conducting multi-wavelength cross-matching analysis based on the coverage of LSST Deep Drilling Field footprints.
• Studying galaxy evolution and properties in the infrared based on the 4.5 micron band data.
• Preparing data pipelines for LSST by analyzing precursor infrared survey data from the Spitzer telescope.

Strengths

• Data originates from the Spitzer Space Telescope Infrared Array Camera (IRAC), a space-based observatory.
• Observations target the ELAIS-S1 field, one of the defined LSST Deep Drilling Fields.
• Combines with earlier SERVS survey data to cover the full LSST DDF footprint in three fields.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML tasks.
• File formats include BIN and PDF, which may require specialized tools for access and analysis.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Spitzer Space Telescope Infrared Array Camera (IRAC) as part of the DeepDrill survey (Program ID 11086).

Time Range

Observations likely precede the 2026 metadata update; specific observation dates are not provided.

Freshness

Last updated 2026-03-13 19:54:10.024791; freshness should be verified.

Geography

Covers the ELAIS-S1 field, an extragalactic deep field on the celestial sphere.