Specific_Product_Header_Level2A_02_02

xml record "Specific_Product_Header_Level2A_02_02"
Specific Product Header for ALD Level 2A products

idfield namedefinition
0Sph_Descriptor
xml string
1Spare_1
xml string

hidden: true
2Num_BRC
ascii uint16
Number of BRCs in the product. This is also the number of Data Set Records in the Measurement Data Sets as there is systematically one DSR for each BRC
3Intersect_Start_Lat
ascii int32 (double)
Latitude of the intersection of WGS84 DEM and the satellite line-of-sight for the first measurement (first measurement centroid time of the first BRC)

unit: "1e-6 degrees_north"

converted unit: "degrees_north" (multiply by 1/1000000)

attribute: unit
ascii stringsize: 8
fixed value: "10-6DegN"

available: optional
4Intersect_Start_Long
ascii int32 (double)
Longitude of the intersection of WGS84 DEM and the satellite line-of-sight for the first measurement (first measurement centroid time of the first BRC)

unit: "1e-6 degrees_east"

converted unit: "degrees_east" (multiply by 1/1000000)

attribute: unit
ascii stringsize: 8
fixed value: "10-6DegE"

available: optional
5Intersect_Stop_Lat
ascii int32 (double)
Latitude of the intersection of WGS84 DEM and the satellite line-of-sight for the last measurement (last measurement centroid time of the last BRC)

unit: "1e-6 degrees_north"

converted unit: "degrees_north" (multiply by 1/1000000)

attribute: unit
ascii stringsize: 8
fixed value: "10-6DegN"

available: optional
6Intersect_Stop_Long
ascii int32 (double)
Longitude of the intersection of WGS84 DEM and the satellite line-of-sight for the last measurement (last measurement centroid time of the last BRC)

unit: "1e-6 degrees_east"

converted unit: "degrees_east" (multiply by 1/1000000)

attribute: unit
ascii stringsize: 8
fixed value: "10-6DegE"

available: optional
7Sat_Track
ascii double
Sub-satellite heading at the sensing start time in the MPH

unit: "degrees"

attribute: unit
ascii stringsize: 3
fixed value: "deg"

available: optional
8Spare_2
xml string

hidden: true
9Max_Num_Prof
ascii uint16
Maximum number of profiles reserved for all the Measurement DSR in the file. Note that the use of several algorithms is possible for deriving the optical atmospheric profiles. The figure reported here is the maximum value of the total number of profiles produced by the algorirthms
10Num_Valid_Profiles
ascii uint16
Number of valid profiles. Beware, this number can be less than, or greater than the number of BRCs. This second option may happen when a discrimination is done in a BRC between e.g. cloudy and clear scenes and two independent profiles are produced
11Spare_3
xml string

hidden: true
12List_of_Dsds
xml record "List_of_Dsds"