TM Film Only Data Dictionary

Acquisition Date

• Field Definition:  Year, month and day that this scene was acquired.

                 Format:

                 YYYY/MM/DD

                 YYYY = Year

                 MM = Month

                 DD = Day

 

Band Quality (1 - 7)

• Field Definition:  Band Quality is a value, expressed as a single character for each frame, based on (1) errors encountered during archive processing; and/or (2) visible artifacts in the data when manually inspected. TM scenes have 7 spectral bands. MSS scenes have 4 spectral bands with different band designations for Landsats 1-3 (bands 4 through 7) and Landsats 4-5 (bands 1 through 4).

              Values:

              9 = Excellent (no quality issues or errors detected)

              7-8 = Good (minor quality issues and/or errors detected)

              5-6 = Fair (moderate quality issues and/or errors detected)

              3-4 = Poor (significant quality issues and/or errors detected)

              1-2 = Extremely Poor (severe quality issues and/or errors detected)

              0 = Worst

              M = Band is missing

              U = Band has an unknown quality score (expected but insufficient information)

 

Browse Available

• Field Definition:  Indicates whether a browse image is available for viewing.

                 Values:

                 Y = Yes, a browse does exist for this scene

                 N = No, a browse does not exist for this scene

 

Coordinates - Decimal Degrees

• Field Definition:  The latitude and longitude of the scene in decimal degrees.

                 Values:

                 Coordinates in decimal degrees for following fields:

                 Scene Center Latitude and Longitude

                 NE Corner Latitude and Longitude

                 NW Corner Latitude and Longitude

                 SE Corner Latitude and Longitude

                 SW Corner Latitude and Longitude

                 Latitude Format Decimal Degrees: -90.00000 through 90.00000

                 Longitude Format Decimal Degrees: -180.00000 through 180.00000

 

Coordinates - Degrees, Minutes, Seconds

• Field Definition:  The latitude and longitude of the scene in degrees, minutes and seconds.

                 Values:

                 Coordinates in degrees, minutes, and seconds for the following fields.

                 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

Download Available

• Field Definition:  This field is used to indicate if a scene has already been scanned and is available for immediate download. Scenes that are not available for immediate download may be ordered.

                 Values:

                 Download Available = Yes, Download not Available = No

 

Date Entered

• Field Definition:  Year, month and day that this scene was entered into the inventory database at EROS.

                 Values:

                 YYYY/MM/DD

 

Date Updated

• Field Definition:  Year, month and day that this scene was last updated in the inventory database at EROS.

                 Values:

                 YYYY/MM/DD

 

Day/Night

• Field Definition:  Day or night acquisition of the scene.

                 Values:

                 DAY = Day scenes are associated with WRS Row 1 through 122 for daytime (descending) acquisitions.

                 NIGHT = Night scenes are associated with WRS Rows 123 through 246 as the satellite ascended behind the earth (dark side).

 

Frame (1-7)

• Field Definition:  The number assigned to the photographic frame on the roll of film for each band with "M" indicating a missing band. This is not included in the Landsat Scene Identifier, but can be found in the scanned images. TM Frames 1 through 7 correlate directly to the band number. MSS Frames 1 through 4 correspond to bands 4, 5, 5, & 7 for Landsats 1-3; and bands 1, 2, 3, & 4 for Landsats 4-5.
  
   

High Resolution Download Available

• Field Definition:  This field indicates if a high resolution download is currently available for the product. Standard high resolution products are at a resolution of 25 microns or 1,000 dots per inch (dpi). Medium resolution products are at a resolution of 63 microns or 400 dpi.
  
  
  
  Note: EarthExplorer will have a shopping basket icon on the results page for images that are available for on-demand scanning. On-demand scanning options for black and white images include 25 microns (1,000 dpi), 14 microns (1,800 dpi), or 7 microns (3,600 dpi). On-demand scanning options for color images include 25 microns (1,000 dpi) or 14 microns (1,800 dpi). Color images are limited to 14-micron due to file size.
  
   

Landsat Scene Identifier

• Field Definition:  Unique Landsat scene identifier.

                 Values:

                 Landsat Scene Identifier: LXSPPPRRRYYYYDDDGSIVV

                 L = Landsat

                 X = Sensor (M = MSS, T = TM)

                 S = Satellite

                 PPP = WRS Path

                 RRR = WRS Row

                 YYYY = Year of Acquisition

                 DDD = Day of Acquisition

                 GSI = Ground Station Identifier

                 VV = Version

 

Roll Number

• Field Definition:  The number assigned to the roll of film. Film sources are either 9-inch or 70 mm. This is not indicated in the Landsat Scene Identifier.
  
   

Satellite

• Field Definition:  Indicates which Landsat satellite acquired the scene.

                 Values:

                 1 = Landsat 1 MSS only

                 2 = Landsat 2 MSS only

                 3 = Landsat 3 MSS only

                 4 = Landsat 4 MSS and TM

                 5 = Landsat 5 MSS and TM

 

Scene Cloud Cover

• Field Definition:  The percent of the scene that is obscured by clouds. The code represents tens of percent.

                 Values:

                 0 to 9 percent cloud cover

                10 to 19 percent cloud cover

                20 to 29 percent cloud cover

                30 to 39 percent cloud cover

                40 to 49 percent cloud cover

                50 to 59 percent cloud cover

                60 to 69 percent cloud cover

                70 to 79 percent cloud cover

                80 to 89 percent cloud cover

                90 to 100 percent cloud cover

 

Scene Quality

• Field Definition:  The quality rating applied to entire scene.

                 Values:

                 9 = Excellent (no quality issues or errors detected)

                 7-8 = Good (minor quality issues and/or errors detected)

                 5-6 = Fair (moderate quality issues and/or errors detected)

                 3-4 = Poor (significant quality issues and/or errors detected)

                 1-2 = Extremely Poor (severe quality issues and/or errors detected)

                 0 = Missing Value

 

WRS Path

• Field Definition:  The Worldwide Reference System (WRS) assigns sequential path numbers from east to west for Landsat satellite orbital tracks (paths).
  
  
  
    Values:
  
    001-251 for Landsat 1-3
  
    001-233 for Landsat 4-5
  
   

WRS Row

• Field Definition:  The Worldwide Reference System (WRS) row refers to the latitudinal center line of a Landsat image as the satellite moves along its path.
  
     Values:
  
     001-059 = Northern Hemisphere (Descending)
  
     060 = Equator (Descending)
  
     061-119 = Southern Hemisphere (Descending)
  
     120-122 = Southern Polar Zone (Descending)
  
     123-183 = Southern Hemisphere (Ascending)
  
     184 = Equator (Ascending)
  
     185-246 = Northern Hemisphere (Ascending)
  
     247-248 = Northern Polar Zone (Descending)