Deep GLIMPSE Archive: Infrared Point Sources from the Far Outer Galaxy

An archive of infrared point source observations from the Spitzer Space Telescope's Deep GLIMPSE project. The data maps 125 degrees of Galactic longitude in the Far Outer Galaxy using two IRAC bands at 3.6 and 4.5 μm. It was produced by NASA as part of a Warm Mission Spitzer Cycle 8 Exploration Science Program.

Use Cases

• Cataloging stellar point sources based on infrared photometry data.
• Analyzing the density and distribution of stars in the Far Outer Galaxy based on the mapped longitude and latitude ranges.
• Comparing source properties between the less-stringent Archive and the more-stringent Catalog subsets mentioned in the description.
• Studying the Galactic warp structure using data centered at a Galactocentric distance of 13 kpc.

Strengths

• Covers a large area of 125 degrees of Galactic longitude.
• Provides data in two specific infrared bands (approximately 3.6 and 4.5 μm).
• Includes a less-stringent selection of point sources compared to its derived Catalog, potentially offering a broader sample.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data format includes BIN files, 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) during the Warm Mission.

Time Range

Cycle 8 Exploration Science Program (PIDs 80074 and 80253).

Freshness

Last updated 2026-03-13 17:56:35.243111; freshness should be verified.

Geography

Galactic longitudes l=265°-350° and 25°-65°, with a latitude width of about 2.1°, centered on the Galactic warp in the Far Outer Galaxy.