SpIES: 6.1 Million Infrared Sources Detected at 3.6 Microns

SpIES 3.6 micron-only Catalog contains 6.1 million astronomical sources detected only at the 3.6-micron wavelength by the Spitzer Space Telescope. The Spitzer IRAC Equatorial Survey (SpIES) covers 115 square degrees in the Equatorial SDSS Stripe 82 field, achieving a 5 sigma depth of 6.13 microJy. This dataset was produced by the National Aeronautics and Space Administration and was last updated on March 13, 2026.

Use Cases

• Identify and analyze faint infrared sources based on the 3.6-micron detection depth.
• Cross-match single-band sources with optical surveys like SDSS Stripe 82 based on the specified survey field.
• Study source populations detected in only one infrared band versus both bands, as referenced in the multi-catalog structure.

Strengths

• Large-scale catalog containing 6.1 million individual sources.
• Covers a significant 115 square degree area in a well-studied equatorial field.
• Provides a specific 5 sigma depth measurement of 6.13 microJy (21.93 AB magnitude).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown for this specific file, which may limit suitability assessment.
• Data is provided in a BIN format, which may require specialized tools for access.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data gathered from the Spitzer IRAC Equatorial Survey (SpIES) using the Spitzer Space Telescope.

Time Range

null

Freshness

Last updated 2026-03-13 17:25:44.771115; freshness should be verified.

Geography

Equatorial SDSS Stripe 82 field (115 square degrees).