GLIMPSE II: Infrared Survey of the Galactic Central Region

The Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSEII) imaged longitudes ±10° of the central region of the Galaxy. The dataset contains point source observations from two epochs in September 2005 and April 2006, with photometric uncertainty typically below 0.3 magnitudes. It was produced by the National Aeronautics and Space Administration.

Use Cases

• Identify and catalog point sources based on signal-to-noise criteria mentioned in the description
• Analyze photometric properties of stars in the Galactic mid-plane based on multi-band infrared data
• Compare source characteristics between the Archive and its more stringent Catalog subset as described
• Study temporal changes in infrared brightness from the two-epoch observation strategy

Strengths

• Photometric uncertainty is typically less than 0.3 magnitudes, indicating precise measurements
• Observations consist of two epochs (September 2005 and April 2006), providing temporal data
• Coverage is detailed for the Galactic central region, with latitude coverage varying by longitude

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Infrared sky survey observations from the Spitzer Space Telescope's GLIMPSEII program.

Time Range

Observations from September 2005 and April 2006.

Freshness

Last updated 2026-03-13 17:46:23.355232; freshness should be verified

Geography

The Galactic central region, covering longitudes ±10° with variable latitude coverage.