VNP03DNB - VIIRS/NPP Day/Night Band Moderate Resolution Terrain-Corrected Geolocation 6-Min L1 Swath 750m



VNP03DNB represents the short-name for the Suomi National Polar-orbiting Partnership (SNPP) platform-based NASA VIIRS L1 terrain-corrected geolocation product and contains the derived line-of-sight (LOS) vectors for the single panchromatic Day-Night band (DNB). The geolocation algorithm uses a number of inputs that include an Earth ellipsoid, geoid, and a digital terrain model along with the SNPP platform’s ephemeris and attitude data, and knowledge of the VIIRS sensor and satellite geometry. It provides geodetic coordinates (latitude and longitude), and related parameters for each VIIRS L1 pixel. The VNP03DNB product includes geodetic latitude, longitude, surface height above the geoid, solar zenith and azimuth angles, lunar zenith and azimuth angles, sensor zenith and azimuth angles, land/water mask, moon illumination fraction and phase angle, and quality flag for every pixel location.

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Shortname: VNP03DNB
Platform: Suomi-NPP
Instrument: VIIRS
Processing Level: Level-1B
Data Format: netCDF4/HDF5
Spatial Resolution: 750 m
Temporal Resolution: 6 minute
ArchiveSets: 5200, 5110
Collection: NPP and JPSS1 VIIRS data 2.0 (ArchiveSet 5200)
PGE Number: PGE501
File Naming Convention:

Syntax: ESDT.AYYYYDDD.HHMM.CCC.YYYYDDDHHMMSS.Format
Example: VNP03DNB.A2015080.0800.002.2021080083706.nc

  • ESDT Earth Science Data Type or Shortname
  • A Stands for Acquisition
  • YYYYDDD Data acquisition year and Day-of-year per the Julian Calendar
  • HHMM Acquisition Hour and Minute
  • CCC Version ID of the data collection
  • YYYYDDDHHMMSS Processing year, Day-of-year, UTC time (hour, minutes, seconds)
  • Format File format suffix, which in the above case represents netCDF4/HDF5
Keywords: SNPP VIIRS, L1, Day-Night band, Terrain-corrected Geolocation
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