ASTER L1B: Terra Satellite Registered Radiance Data

NASA's Terra ASTER Level 1B Registered Radiance at the Sensor data product provides radiometrically calibrated and geometrically co-registered satellite imagery. The product has spatial resolutions of 15 meters for Visible and Near Infrared bands, 30 meters for Shortwave Infrared bands, and 90 meters for Thermal Infrared bands. This version 4 dataset, last updated in March 2026, applies Radiometric Calibration Coefficient Version 5 to improve radiometric accuracy.

Use Cases

• Land surface temperature analysis based on Thermal Infrared (TIR) band data
• Vegetation and land cover classification based on Visible and Near Infrared (VNIR) and Shortwave Infrared (SWIR) band resolutions
• Radiometric calibration validation based on the application of RCC V5 coefficients
• Geometric co-registration of multi-spectral imagery based on intra- and inter-telescope corrections

Strengths

• Radiometric calibration updated to Radiometric Calibration Coefficient Version 5 (RCC V5) for improved accuracy
• Multiple spatial resolutions: 15 meters for VNIR, 30 meters for SWIR, and 90 meters for TIR bands
• Data is geometrically co-registered with applied intra- and inter-telescope registration corrections

Limitations

• SWIR data acquired after April 2008 may exhibit anomalous saturation and striping, requiring user consultation of advisories
• Column-level documentation is absent; field semantics must be inferred after download
• Row count and dataset size are unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite observation from the Terra ASTER instrument

Time Range

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Freshness

Last updated 2026-03 13 09:26:58.029518

Geography

Global coverage from satellite orbits