Return Beam Vidicon (RBV) 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
 

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
 

Cloud Cover

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

               Values:
               0 = 0 to 9 percent cloud cover
               1 = 10 to 19 percent cloud cover
               2 = 20 to 29 percent cloud cover
               3 = 30 to 39 percent cloud cover
               4 = 40 to 49 percent cloud cover
               5 = 50 to 59 percent cloud cover
               6 = 60 to 69 percent cloud cover
               7 = 70 to 79 percent cloud cover
               8 = 80 to 89 percent cloud cover
               9 = 90 to 100 percent cloud cover
 

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 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
 

Frame Number

• Field Definition:  The number assigned to the photographic frame on the roll of film. Depending on the subscene, it is camera1_frame1..camera1_frame4.
   

Frame Quality

• Field Definition:  Frame 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.

              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)
 

Roll Location

• Field Definition:  The location of the roll (which is also the storage location) is camera1_src_id. Film sources are either 9-inch or 70 mm. This is not indicated in the RBV Sub scene Identifier.
   

Sub scene Identifier

• Field Definition:  Unique RBV sub scene identifier.

              Values:
              RBV Sub scene Identifier: ALDDDDHHMMSXC
              A = agency (all 8 - Landsat)
              L = Landsat 1,2 or 3 (all 3)
              DDDD - acquisition day number (number of days after launch)
              HH = hour at time of observation
              MM = minute at time of observation
              S = tens of seconds at time of observation
              X = filler
              C = image (sub scene) code (A through D)
 

Sub scene Quality

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

              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)