VIIRS/NPP Day/Night Band Terrain Corrected Geolocation L1 6-Min Swath 750m NRTEntry ID: VNP03DNB_NRT_1
The VNP03DNB_NRT,a Near Real Time (NRT) product, includes the geolocation fields that are calculated for VIIRS day-night band (DNB) Line of sight (LOS) for all orbits at the nominal resolution of 750 m. The locations and ancillary information correspond to the intersection of the centers of each Field of View (FOV) from 16 detectors in the DNB on the Earth's surface. A digital terrain model is ... used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit ephemeris data, the instrument telemetry and the digital elevation model. The geolocation fields contained within the VNP03DNB Geolocation files include geodetic latitude, longitude, surface height above the geoid, solar and lunar zenith and azimuth angles, lunar phase angle and illumination fraction, satellite zenith and azimuth angles, and a land/water mask for each 750m sample. Additional information is included in the header to enable the calculation of the approximate location of the center of the detectors for any of the VIIRS bands. This product is used as input by subsequent VIIRS day/night band products, particularly those produced by the Land team.
file_naming_convention = “VNP03DNB_NRT.AYYYYDDD.HHMM.CCC.nc
Data Set Citation
Dataset Originator/Creator: VCST Team
Dataset Title: VIIRS/NPP Day/Night Band Terrain Corrected Geolocation L1 6-Min Swath 750m NRT
Dataset Release Date: 2017-07-01T00:00:00.000Z
Dataset Release Place: MODAPS at NASA/GSFC
Dataset Publisher: LANCEMODIS
Dataset DOI: http://dx.doi.org/10.5067/VIIRS/VNP03DNB_NRT.001Online Resource: https://earthdata.nasa.gov/earth-observation-data/near-real-time/do...
Quality This is a near real-time (NRT) product that has undergone expedited processing to make it available within 3 hours of observation time to meet the needs of the NRT applications community. NRT data are subject to geolocation errors or reprocessing. Usually the geolocationalerrors are minimal (less than 100 meters), however, there are situations, particularly before and after spacecraft maneuvers and during space weather events, when the difference can increase up to several kilometers.
Access Constraints No constraints but users need to be registered with the ESDIS User Registration system (https://urs.eosdis.nasa.gov/users/new) to download files via the FTP site.
Use Constraints None. See disclaimer: https://earthdata.nasa.gov/data/near-real-time-data/about-lance/dis...
Wolfe, R. E., G. Lin, M. Nishihama, K. P. Tewari, J. C. Tilton, and A. R. Isaacman (2013-01-01T00:00:00.000Z), Suomi NPP VIIRS prelaunch and on-orbit geometric calibration and characterization, doi:10.1002/jgrd.50873
Extended Metadata Properties
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