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Description

The Visible and Infrared Imager/Radiometer Suite (VIIRS) Geolocation (GEO) Products are data containing terrain corrected solar zenith and azimuth angles, satellite zenith and azimuth angles, as well as latitudes and longitudes for each VIIRS grid point for each of the three VIIRS resolutions. (375m, 750m, and DNB).

Version Description

This version updates the file-naming convention of the product.

Product Summary

Platforms
NOAA-20
Instruments
VIIRS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2017-11-29 to Present
Data Partner
Ocean Biology Processing Group (OBPG) ,
Ocean Biology Distributed Active Archive Center (OB.DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/GCDC/OB.DAAC)
Concept ID
C1940926976-OB_DAAC
Data State
ACTIVE
Number of Files/Granules
703114
Processing Level
1
Published
Updated
Science Keywords
Geolocation

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
geolocation_data/height geolocation_data/height meters int16 -32768 -1000 to 10000 1
geolocation_data/latitude geolocation_data/latitude degrees_north float32 -999.90002441406 -90 to 90 N/A
geolocation_data/longitude geolocation_data/longitude degrees_east float32 -999.90002441406 -180 to 180 N/A
geolocation_data/quality_flag geolocation_data/quality_flag N/A uint8 N/A N/A N/A
geolocation_data/range geolocation_data/range meters int16 -32768 0 to 32767 100
geolocation_data/sensor_azimuth geolocation_data/sensor_azimuth degrees int16 -32768 -18000 to 18000 0.0099999997764826
geolocation_data/sensor_zenith geolocation_data/sensor_zenith degrees int16 -32768 0 to 18000 0.0099999997764826
geolocation_data/solar_azimuth geolocation_data/solar_azimuth degrees int16 -32768 -18000 to 18000 0.0099999997764826
geolocation_data/solar_zenith geolocation_data/solar_zenith degrees int16 -32768 0 to 18000 0.0099999997764826
navigation_data/att_ang_end navigation_data/att_ang_end degrees float32 -999.90002441406 -180 to 180 N/A
navigation_data/att_ang_mid navigation_data/att_ang_mid degrees float32 -999.90002441406 -180 to 180 N/A
navigation_data/att_ang_start navigation_data/att_ang_start degrees float32 -999.90002441406 -180 to 180 N/A
navigation_data/att_quat_ev navigation_data/att_quat_ev N/A float32 -999.90002441406 -1 to 1 N/A
navigation_data/earth_moon_distance navigation_data/earth_moon_distance meters float32 -999.90002441406 350000000 to 420000000 N/A
navigation_data/earth_sun_distance navigation_data/earth_sun_distance AU float32 -999.90002441406 0.98000001907349 to 1.0199999809265 N/A
navigation_data/lunar_inst navigation_data/lunar_inst N/A float32 -999.90002441406 -1 to 1 N/A
navigation_data/lunar_j2000 navigation_data/lunar_j2000 N/A float32 -999.90002441406 -1 to 1 N/A
navigation_data/orb_pos_ev_end navigation_data/orb_pos_ev_end meters float32 -9999999 -7300000 to 7300000 N/A
navigation_data/orb_pos_ev_mid navigation_data/orb_pos_ev_mid meters float32 -9999999 -7300000 to 7300000 N/A
navigation_data/orb_pos_ev_start navigation_data/orb_pos_ev_start meters float32 -9999999 -7300000 to 7300000 N/A
navigation_data/orb_vel_ev_end navigation_data/orb_vel_ev_end meters/second float32 -9999999 -7600 to 7600 N/A
navigation_data/orb_vel_ev_mid navigation_data/orb_vel_ev_mid meters/second float32 -9999999 -7600 to 7600 N/A
navigation_data/orb_vel_ev_start navigation_data/orb_vel_ev_start meters/second float32 -9999999 -7600 to 7600 N/A
navigation_data/solar_inst navigation_data/solar_inst N/A float32 -999.90002441406 -1 to 1 N/A
navigation_data/solar_j2000 navigation_data/solar_j2000 N/A float32 -999.90002441406 -1 to 1 N/A
scan_line_attributes/ev_mid_time scan_line_attributes/ev_mid_time seconds float64 -999.9 0 to 2000000000 N/A
scan_line_attributes/HAM_side scan_line_attributes/HAM_side N/A uint8 255 0 to 1 N/A
scan_line_attributes/scan_end_time scan_line_attributes/scan_end_time seconds float64 -999.9 0 to 2000000000 N/A
scan_line_attributes/scan_quality scan_line_attributes/scan_quality N/A int16 -999 N/A N/A
scan_line_attributes/scan_start_time scan_line_attributes/scan_start_time seconds float64 -999.9 0 to 2000000000 N/A
scan_line_attributes/sensor_mode scan_line_attributes/sensor_mode N/A uint8 255 N/A N/A
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