MODIS/Aqua Near-Real-Time Raw Radiance Swath Data

Near-real-time Level-1A product from the MODIS/Aqua satellite containing raw instrument counts for all 36 spectral bands. The data includes all detector views (Earth, solar diffuser, black body, space) and is packaged into 5-minute swath granules with quality indicators. It is produced by the LANCEMODIS organization.

Use Cases

• Calibrating thermal infrared (TIR) band radiances using black body and space view detector counts.
• Identifying missing or bad pixels in 250m, 500m, or 1km resolution imagery using the embedded quality indicators.
• Analyzing diurnal cycles by comparing daytime-only visible/SWIR/NIR measurements with day-and-night TIR radiances.
• Separating instrument data for geolocation processing using the granule structure and time tags.

Strengths

• Contains raw detector counts for all 36 MODIS spectral bands.
• Includes data from multiple detector views: Earth, solar diffuser, SRCA, black body, and space.
• Provides 5-minute temporal granularity for near-real-time analysis.

Limitations

• Specific row count, geographic coverage, and data volume are unknown.
• Visible, SWIR, and NIR band measurements are unavailable for night mode observations.
• Data is raw Level-1A, requiring further processing for calibrated geophysical variables.

Provenance

Source

NASA Earthdata (LANCEMODIS organization).

Collection Method

Raw instrument data from the MODIS/Aqua sensor, reformatted and packaged into granules.

Time Range

Near-real-time coverage; specific historical range is unknown.

Freshness

Near-real-time (NRT).

Geography

Global swath coverage from the Aqua satellite orbit.