SDWFS: Spitzer Infrared Survey of the Boötes Field Across Four Epochs

A four-epoch infrared survey of 10 square degrees in the Boötes field, conducted using the IRAC instrument on the Spitzer Space Telescope. The Spitzer Cycle 4 Legacy project provides 20 band-matched catalogs reporting Vega magnitudes at 3.6, 4.5, 5.8, and 8 microns. The data, from the National Aeronautics and Space Administration, is designed to characterize galaxy evolution beyond z ~ 1.5.

Use Cases

• Selecting infrared-variable objects based on multi 8 micron epoch observations mentioned in the description
• Identifying high proper motion objects based on the four-epoch survey design
• Characterizing galaxy evolution beyond z ~ 1.5 based on the survey's sensitivity and large volume
• Analyzing photometric properties based on Vega magnitudes reported for four IRAC bands

Strengths

• Covers 10 square degrees in the Boötes field, providing a wide-field view
• Includes four epochs of observation, enabling time-domain analysis over years
• Provides 20 catalogs with band-matched data for four IRAC wavelengths
• Source coordinates are aligned to 2MASS catalog positions within 0.2 arcsec

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the IRAC instrument on the Spitzer Space Telescope, part of the Spitzer Cycle 4 Legacy project.

Time Range

Coverage spans four distinct observational epochs.

Freshness

Last updated 2026-03-13 18:10:31.930351; freshness should be verified

Geography

Observations cover 10 square degrees in the Boötes field.