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Description
NASA's VJ103IMG product provides terrain-corrected geolocation vectors for the VIIRS sensor aboard the JPSS1 satellite. It contains geodetic latitude, longitude, surface height, solar and sensor angles, a land/water mask, and a quality flag for every pixel at a 375-meter resolution. The data is derived from satellite ephemeris, attitude data, and digital terrain models.
Use Cases
Precisely georeferencing VIIRS imagery based on derived line-of-sight vectors and terrain correction.
Calculating solar illumination conditions for scenes using solar zenith and azimuth angles.
Masking land and water areas in satellite data analysis using the included land/water mask.
Assessing data quality for downstream processing via the per-pixel quality flag.
Strengths
Provides high-resolution (375m) per-pixel geolocation for VIIRS imagery bands.
Includes multiple derived geophysical parameters (angles, height, mask) for each pixel.
Produced by a major authoritative organization (NASA).
Limitations
Key metadata like row count, file size, and specific license details are missing or conflicting across platforms.
Column names are not provided, limiting precise understanding of data structure.
Descriptions are identical across platforms, suggesting potential copy-paste metadata without platform-specific detail.
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Derived from SNPP platform ephemeris, attitude data, VIIRS sensor geometry, and digital terrain models.
Freshness
2026-04-09 20:48:06.786722
Geography
Global (satellite swath)
License is listed as 'other-license-specified' on Data.gov platforms, but details are not provided.