OBSMeasurements version 0

OBSMeasurements

This definition is based on version 2.5 of the SPP File Format Specification S1PD.TCN.00095.ASRT

root type

xml record
idfield namedefinition
0obsProduct
xml record
idfield namedefinition
0obsGenericInformation
xml record
idfield namedefinition
0inputInformation
xml record
idfield namedefinition
0orbitProductName
xml string
Auxiliary Orbit File name
1orbitType
xml string
Orbit type (FOS PREDICTED, POD RESTITUTED, POD PRECISE)
2level0AnnotationProductsList
xml record
attribute: length
xml string


idfield namedefinition
0level0AnnotationProductName
xml array[dim_0]
dim_0: determined automatically from xml file
xml string
L0 Annotation Product filename

attribute: pid
xml string
1processingInformation
xml record
idfield namedefinition
0absoluteOrbitNumber
ascii uint64
Absolute number of the processed orbit
1relativeOrbitNumber
ascii uint32
Relative number of the processed orbit
2referenceANXTime
ascii timesize: 26
unit: "s since 2000-01-01"

value: time(str(.), "yyyy-MM-dd'T'HH:mm:ss.SSSSSS")

attribute: unit
ascii string

ascii stringsize: 26
CCSDS ASCII datetime "YYYY-MM-DDThh:mm:ss.uuuuuu".
3referenceGroundPointsGrid
xml record
idfield namedefinition
0azimuthPoints
ascii uint32
Number of azimuth ground points in the grid.
1azimuthStep
ascii double
Azimuth step used to generate the ground points.

unit: "s"
2swathList
xml string
List of swath identifiers (SM1..SM6, IW1..IW3, EW1..EW5) associated to refElevationAngleListswathList

attribute: length
xml string
3refElevationAngleList
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of elevation angles w.r.t. the antenna reference frame used in the direct geocoding process (the length of the list is the number of range ground points in the grid)

unit: "degree"
1obsBaselineRecordsList
xml record
attribute: length
xml string


idfield namedefinition
0obsBaselineRecord
xml array[dim_0]
dim_0: determined automatically from xml file
xml record
attribute: n
xml string


idfield namedefinition
0azimuthTime
ascii timesize: 26
Azimuth time at which the ground point in the first swath of swathList has been imaged by the input orbit.

unit: "s since 2000-01-01"

value: time(str(.), "yyyy-MM-dd'T'HH:mm:ss.SSSSSS")

attribute: unit
ascii string

ascii stringsize: 26
CCSDS ASCII datetime "YYYY-MM-DDThh:mm:ss.uuuuuu".
1anxTime
ascii double
Azimuth time at which the ground point in the first swath of swathList has been imaged by the input orbit referred to referenceANXTime.

unit: "s"

attribute: unit
ascii string
2deltaUTC
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of delta azimuth times w.r.t. azimuthTime at which the ground points in the different swaths of swathList have been imaged by the input orbit (the first one is always null)

unit: "s"
3rangeTime
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii double
List of range times at which the ground points in the different swaths of swathList have been imaged by the input orbit

unit: "ns"
4elevationAngle
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of elevation angles after roll-steering at which the ground points are imaged by the input orbit

unit: "degree"
5parallelBaseline
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of parallel components of the baseline between the reference orbit and the input one

unit: "m"
6normalBaseline
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of normal components of the baseline between the reference orbit and the input one

unit: "m"
7alongTrackBaseline
ascii array[dim_0]
dim_0: int(str(@length))

attribute: length
ascii string

attribute: unit
ascii string

ascii float
List of along-track components of the baseline between the reference orbit and the input one

unit: "m"
2obsSynchronizationRecordList
xml record
attribute: length
xml string


idfield namedefinition
0obsSynchronizationRecord
xml array[dim_0]
dim_0: determined automatically from xml file
xml record
attribute: n
xml string


idfield namedefinition
0swathName
xml string
Swath identifier (S1..S6, IW1..IW3, EW1..EW5) corresponding to the ground point to which the information is referred
1topsarAcquisitionIndex
ascii uint32
Item of the L0 Annotation Products list to which the ground point is referred
2azimuthTime
ascii timesize: 26
unit: "s since 2000-01-01"

value: time(str(.), "yyyy-MM-dd'T'HH:mm:ss.SSSSSS")

attribute: unit
ascii string

ascii stringsize: 26
CCSDS ASCII datetime "YYYY-MM-DDThh:mm:ss.uuuuuu".
3anxTime
ascii double
Azimuth time at which the ground point has been imaged by the input orbit referred to referenceANXTime (obtained adding to anxTime in the corresponding baseline record the proper deltaUTC)

unit: "s"

attribute: unit
ascii string
4timeFromTopsarAcquisitionStart
ascii double
Time from the beginning of the Topsar acquisition at which the ground point has been imaged from the input orbit

unit: "s"

attribute: unit
ascii string

detection rule

This product definition is applicable if a product matches the following rule:

exists(/obsProduct)