MSS Film Only Data Dictionary

Acquisition Date

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

               Format:
               YYYY/MM/DD
 

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.
 

Band Quality (1-7)

• Field Definition:  Band Quality is a value, expressed as a single digit number for each frame, based on: (1) errors encountered during archive processing; and/or (2) visible artifacts in the data when manually inspected.

              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)
 

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
 

Date Entered

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

               Format:
               YYYY/MM/DD
 

Day/Night

• Field Definition:  Day or night condition of scene capture

               Values:
               DAY = Day scene
               NIGHT = Night scene
 

Frame (1-4)

• Field Definition:  The number assigned to the photographic frame on the roll of film. It is the frame number assigned to Bands 1 through 4 with "M" indicating a missing band. This is not included in the Landsat Scene Identifier, but can be found in the lower right hand corner of the image.
   

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.
   

JPEG Download

• Field Definition:  Joint Photographic Experts Group format. The color full resolution composite Landsat MSS images are RGB composites created from the film scans of bands 4,3, and
  
  The file size ranges from 2 to 12 MB. The files are stored in a JPEG format. This option will download one file.
   

Landsat Scene Identifier

• Field Definition:  Unique Landsat scene identifier

              Format:
              LXSPPPRRRYYYDDDGSIVV

              Values:
              L = Landsat
              X = Sensor (M = MSS, T = TM, E = ETM)
              S = Satellite (1 = Landsat 1, 2 = Landsat 2, etc.)
              PPP = WRS Path
              RRR = WRS Row
              YYYY = Year of Acquisition
              DDD = Day of Acquisition Year
              GSI = Ground Station Identifier
              VV = Version
 

Roll Number

• Field Definition:  The number assigned to the roll of film. This is not indicated in the Landsat Scene Identifier.
   

Satellite

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

               Values:
               1 = Landsat 1
               2 = Landsat 2
               3 = Landsat 3
               4 = Landsat 4
               5 = Landsat 5
 

Scene Cloud Cover

• Field Definition:  The percent of the frame that is obscured by clouds. The code is a single digit representing tens of percent.

              Values:
              0 = 0 to 9 percent cloud cover
             10 = 10 to 19 percent cloud cover
             20 = 20 to 29 percent cloud cover
             30 = 30 to 39 percent cloud cover
             40 = 40 to 49 percent cloud cover
             50 = 50 to 59 percent cloud cover
             60 = 60 to 69 percent cloud cover
             70 = 70 to 79 percent cloud cover
             80 = 80 to 89 percent cloud cover
             90 = 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
 

TIFF Download

• Field Definition:  Tagged Image File Format. The four band Landsat MSS image data files consist of a zip file containing four co-registered spectral bands for each scene. The file size for each black-and-white band is approximately 75 MB. These files are stored in a TIFF format. This option will download four files.
   

WRS Path

• Field Definition:  WRS - defined nominal Landsat satellite track (path).

               Values:
               001 - 251
 

WRS Row

• Field Definition:  WRS latitudinal center line of a Landsat image.

               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)