GLIMPSE II: Higher-Reliability Galactic Infrared Point Sources

GLIMPSE II Epoch2 More Reliable Archive provides higher-reliability infrared point source data from a survey of the central region of the Milky Way. The National Aeronautics and Space Administration collected this data using two-epoch observations in September 2005 and April 2006. Sources in this archive meet stringent criteria requiring two detections in adjacent infrared bands, including the 2MASS Ks band.

Use Cases

• Identify high-confidence stellar point sources based on the two-detection reliability criteria.
• Study the structure of the Galactic plane based on the survey's specific latitude and longitude coverage.
• Analyze temporal changes in infrared sources using the two-epoch observation strategy from 2005-2006.
• Cross-reference infrared sources with other catalogs using the included 2MASS Ks band detections.

Strengths

• Implements a higher-reliability selection requiring two detections in adjacent bands.
• Survey covers a defined region of the Galactic center with specific latitude and longitude boundaries.
• Observations were conducted at two epochs (September 2005 and April 2006) for temporal analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data excludes the central Galactic center region (l=±1°, b=±0.75°) observed by a separate program.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Infrared imaging from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSEII).

Time Range

Observations from September 2005 and April 2006.

Freshness

Last updated 2026-03-13 16:36:10.045684; freshness should be verified.

Geography

Covers longitudes ±10° of the Galactic center, with variable latitude coverage.