Landsat 7 Enhanced Thematic Mapper Plus Systematically Corrected (1999 - May 2003) Data Dictionary Active

Acquisition Date

          Field Definition:  The date the image was acquired.

Format:
YYYY/MM/DD

Band Combination

          Field Definition:  The combination of bands used in the image.

Values:
Valid: 123456678

Coordinates - Decimal Degrees

          Field Definition:  The latitude and longitude are provided in decimal degrees for the following fields:

Values:
Scene Center Latitude and Longitude
Northeast (NE) Corner Latitude and Longitude
Northwest (NW) Corner Latitude and Longitude
Southeast (SE) Corner Latitude and Longitude
Southwest (SW) Corner Latitude and Longitude
 
Latitude Format Decimal Degrees: -90.000 through 90.000
Longitude Format Decimal Degrees: -180.000 through 180.000
 
Number of decimal places will vary by dataset – check collection in EE.

Coordinates - Degrees, Minutes, Seconds

          Field Definition:  The latitude and longitude are provided in degrees, minutes, and seconds for the following fields:

Values:
Scene Center Latitude and Longitude
Northeast (NE) Corner Latitude and Longitude
Northwest (NW) Corner Latitude and Longitude
Southeast (SE) Corner Latitude and Longitude
Southwest (SW) Corner Latitude and Longitude
 
Longitude Format:
DDDMMSS.SSH
DDD = Degree(s) with a range of 0 through 180
MM = Minute(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with E for east and W for west
 
Latitude Format:
DDMMSS.SSH
DD = Degree(s) with a range of 0 through 90
MM = Minutes(s) with a range of 0 through 59
SS.SS = Second(s) with a range of 0 through 59.99
H = Hemisphere with N for north and S for south

Datum

          Field Definition:  The datum associated with the image.

Valid Code:
WGS 84 = Worldgeodetic System 1984

Ellipsoid

          Field Definition:  The ellipsoid associated with the image.

Valid Code:
WGS 84 = Worldgeodetic System 1984

Entity ID

          Field Definition:  This field uniquely identifies the individual landsat scene.

Example:
L71168016_01620010717
 
Valid Format: CCSPPPRRR_EEEYYYYMMDD
 
CC = Landsat 7 Spacecraft
S = Satellite 1
PPP = WRS Path number
RRR = Starting WRS Row Number
_ = Separator between staring and ending row
EEE = Ending WRS Row Number
YYYY = Year of acquisition
MM = Month of acquisition
DD = Day of acquisition

File Size

          Field Definition:  The size of all files associated with the scene, in bytes.

Map Projection

          Field Definition:  The map projection used to create the image.

Values:
Valid code = UTM

Orientation

          Field Definition:  The orientation of the image.

Values:
Valid code = NOM (Nominal)

Resampling Option

          Field Definition:  The resampling applied to the scene.

Valid Code:
MTF = Modulation Transfer Function

Satellite

          Field Definition:  The satellite which acquired the data.

Values:
Valid Code = Landsat 7

Sun Azimuth

           Field Definition:  The Sun azimuth angle at the "true" WRS scene center. Azimuth is the angle of horizonal deviation, measured clockwise from the north.

Values:
-180.0000000 through +180.0000000 degrees (with 7-digit precision)
 
NOTE: A positive value

Sun Elevation

          Field Definition:  The Sun elevation angle at the "true" WRS scene center. Elevation is the angle of vertical deviation from the tangent to the earth's surface (at scene center point) to the line between the sun's center and the scene center point. NOTE: The solar zenith angle will be 90 degrees minus the solar elevation angle.

Values:
0 through +90.0000000 (with a 7-digit precision)

WRS Path

          Field Definition:  The WRS-2 Path number associated with the scene.

Values:
001 through 233

WRS Row

          Field Definition:  The WRS-2 Row number associated with the scene.

Values:
001 through 244

UTM Zone Number

          Field Definition:  The UTM zone number associated with the image.