Docstoc

L1C-parameter-ranges-20090618.xls - Brockmann Consult

Document Sample
L1C-parameter-ranges-20090618.xls - Brockmann Consult Powered By Docstoc
					Field #      Tag name                        Description                      Units         Bytes
 #01    Snapshot_Time   UTC Time at which the scene was taken. Middle N/A                 12
                        of integration time period, propagated from UTC
                        at start of integration provided in ancillary packet.
                        This reference time is applicable to all PVT and
                        AOCS data contained in the “Auxiliary data”
                        part. Expressed in EE CFI transport time format
                        (Array of 3 integer elements)

 #02   Snapshot_ID      Unique identifier for the snapshot. Formed by N/A                 4
                        aggregation of orbit and time within
                        orbit.Contents of this field are formed by:
                        Absolute_orbit_number*10000                     +
                        Seconds_from_ANX
 #03   Snapshot_OBET    Unique identifier for the snapshot. Formed by the N/A             8
                        OBET at T_SYNC extracted from L0. Represents
                        start of integration time in OBET format

 #04   X_Position       Orbit State Vector X Position in Earth Fixed          m           4
                        Reference at Snapshot_Time (field #1)
 #05   Y_Position       Orbit State Vector Y Position in Earth Fixed          m           4
                        Reference at Snapshot_Time (field #1)
 #06   Z_Position       Orbit State Vector Z Position in Earth Fixed          m           4
                        Reference at Snapshot_Time (field #1)
 #07   X_Velocity       Orbit State Vector X Velocity in Earth Fixed          m/s         4
                        Reference at Snapshot_Time (field #1)
 #08   Y_Velocity       Orbit State Vector Y Velocity in Earth Fixed          m/s         4
                        Reference at Snapshot_Time (field #1)
 #09   Z_Velocity       Orbit State Vector Z Velocity in Earth Fixed          m/s         4
                        Reference at Snapshot_Time (field #1)
 #10   Vector_Source    Source of the Orbit State Vector record.              N/A         1
                        Enumerated value
 #11   Q0               Real number component of quaternion obtained          N/A         4
                        rotating from the J2000 inertial reference frame to
                        the satellite body frame
 #12   Q1               First component of quaternion obtained rotating       N/A         4
                        from the J2000 inertial reference frame to the
                        satellite body frame
 #13   Q2               Second component of quaternion obtained               N/A         4
                        rotating from the J2000 inertial reference frame to
                        the satellite body frame
 #14   Q3               Third component of quaternion obtained rotating       N/A         4
                        from the J2000 inertial reference frame to the
                        satellite body frame
 #15   TEC              Total Electron Count content applicable to            TECU        8
                        snapshot data.                                            16
                                                                              (10
                                                                              electron/
                                                                              m2)
#16   Geomag_F            Full or Total Intensity (F) of Geomagnetic field     nT    8
                          vector applicable to snapshot data, obtained
                          mixing PVT and IGRF model.
#17   Geomag_D            Declination (D) of Geomagnetic field vector          deg   8
                          applicable to snapshot data, obtained mixing PVT
                          and IGRF model. Magnetic declination is the
                          angle between magnetic north and true north. D is
                          considered positive when the angle measured is
                          east of true north and negative when west.
                          Positive in eastward direction.
#18   Geomag_I            Inclination (I) of Geomagnetic field vector          deg   8
                          applicable to snapshot data, obtained mixing PVT
                          and IGRF model. Magnetic inclination is the
                          angle between the horizontal plane and the total
                          field vector, measured positive into Earth.
                          Positive in downward (towards Earth Surface)
                          direction.
#19   Sun_RA              Right Ascension of Sun illumination direction in     deg   4
                          Earth Fixed Reference
#20   Sun_DEC             Declination of Sun illumination direction in Earth   deg   4
                          Fixed Reference
#21   Sun_BT              Direct Sun estimated Brightness Temperature that     K     4
                          has been removed from snapshot

#22   Accuracy            Snapshot overall accuracy measurement, based         K     4
                          on Corbella equation and computed as the
                          difference of the mean snapshot Brightness
                          Temperature and the averaged physical
                          temperature of the LICEF receivers
#23   Radiometric_Accurac Error accuracy measurement in the Brightness         K     8
      y                   Temperature value at boresight.

#24   X-Band              Xband transmitter status                             N/A   1
       Size                   Range
3*4 bytes        [-18262.0, 36524.0]
First element is [0, 86400]
signed integer, [0, 999999]
remaining two
are unsigned




4 bytes unsigned [0, 2147483648]
integer




8 bytes unsigned [0, 2^64]
long long


4 bytes signed   -
IEEE float
4 bytes signed   -
IEEE float
4 bytes signed   -
IEEE float
4 bytes signed   -
IEEE float
4 bytes signed   -
IEEE float
4 bytes signed   -
IEEE float
1 byte           [0, 4]

4 bytes signed [0, 1]
IEEE float

4 bytes signed [0, 1]
IEEE float

4 bytes signed [0, 1]
IEEE float

4 bytes signed [0, 1]
IEEE float

8 bytes double   [0, -]
8 bytes double   [0, -]


8 bytes double   [-180, 180]




8 bytes double   [-90, 90]




4 bytes signed [-180, 180]
IEEE float
4 bytes signed [-90, 90]
IEEE float
4 bytes unsigned [0, 1000000]
IEEE float

4 bytes signed   [-300, 200]
IEEE float




2*4        bytes [0, 100]
unsigned IEEE [0, 100]
float
unsigned char    [0, 3]
Field #       Tag name                             Description                       Units
 #01    Grid_Point_ID        Unique identifier for Earth fixed grid point, linking N/A
                             it to Auxiliary Earth Grid file
  #02  Grid_Point_Latitude   Latitude of the DGG cell’s center identified by deg
                             Grid_Point_ID
  #03  Grid_Point_Longitude Longitude of the DGG cell’s center identified by deg
                             Grid_Point_ID
  #04  Grid_Point_Altitude   Altitude of the DGG cell’s center identified by m
                             Grid_Point_ID
  #05  BT_Data_Counter       Counter of Brightness Temperature Data values for N/A
                             current point (variable number depending on point
                             across track position).
  #06  Flags                 L1c flags applicable to the pixel for this particular N/A
                             integration time. Its detailed description is presented
                             in L1 Specification
  #07  BT_Value              Brightness temperature value over current Earth K
                             fixed grid point, obtained by DFT interpolation
  #07  BT_Value_Real         Brightness temperature value over current Earth K
(FULL)                       fixed grid point, obtained by interpolation from L1b
                             data. Contains real components of HH, HV or VV
                             polarisation measurements.
 #07b BT_Value_Imag          Brightness temperature value over current Earth K
(FULL)                       fixed grid point, obtained by interpolation from L1b
                             data. Contains imaginary components of HH, HV or
                             VV polarisation measurements.
  #08  Pixel_Radiometric_Acc Error accuracy measurement in the Brightness K
       uracy                 Temperature presented in the previous field,
                             extracted in the direction of the pixel. Coded as an
                             unsigned short. LSB=X/2^16. Meaning that
                             value=(value coded as unsigned short)*X/2^16 K,
                             where X is Radiometric_Accuracy_Scale given in
                             SPH
  #09  Incidence_Angle       Incidence angle value corresponding to the deg
                             measured BT value over current Earth fixed grid
                             point. Measured as angle from pixel to S/C with
                             respect to the pixel local normal (0º if vertical)
                             Coded as an unsigned short. LSB=90/216. Meaning
                             that     value=(value       coded      as     unsigned
                                         16
                             short)*90/2 degrees
  #10  Azimuth_Angle         Azimuth angle value corresponding to the measured deg
                             BT value over current Earth fixed grid point.
                             Measured as angle in pixel local tangent plane from
                             projected pixel to S/C direction with respect to the
                             local North (0º if local North) Coded as an unsigned
                             short. LSB=360/216. Meaning that value=(value
                                                              16
                             coded as unsigned short)*360/2 degrees
#11   Faraday_Rotation_Angl Faraday rotation angle value corresponding to the deg
      e                     measured BT value over current Earth fixed grid
                            point. It is computed as the rotation from antenna to
                            surface (i.e. inverse angle) Coded as an unsigned
                            short. LSB=360/216. Meaning that value=(value
                            coded as unsigned short)*360/216 degrees

#12   Geometric_Rotation_An Geometric rotation angle value corresponding to the deg
      gle                   measured BT value over current Earth fixed grid
                            point. It is computed as the rotation from surface to
                            antenna (i.e. direct angle) Coded as an unsigned
                            short. LSB=360/216. Meaning that value=(value
                            coded as unsigned short)*360/216 degrees

#13   Snapshot_ID_of_Pixel    Unique identifier for the snapshot. Formed by N/A
                              aggregation of orbit and time within orbit. Contents
                              of      this      field      are     formed      by:
                              Absolute_orbit_number*10000                        +
                              Seconds_from_ANX
#14   Footprint_Axis1         Elliptical footprint major semi-axis value. Coded as km
                              an unsigned short. LSB=X/216. Meaning that
                              value=(value coded as unsigned short)*X/216 km,
                              where X is Pixel_Footprint_Scale given in SPH
#15   Footprint_Axis2         Elliptical footprint minor semi-axis value. Coded as km
                              an unsigned short. LSB=X/2^16. Meaning that
                              value=(value coded as unsigned short)*X/2^16 km,
                              where X is Pixel_Footprint_Scale given in SPH
    Bytes         Size            Range
4           4 bytes integer [0, 9262145]

4           4 bytes signed   [-90, 90]
            IEEE float
4           4 bytes signed   [-180, 180]
            IEEE float
4           4 bytes signed   [-300, 9000]
            IEEE float
2           2 bytes          [0, 65535]
            unsigned short

2           2         bytes [0, 65535]
            unsigned short

4           4 bytes signed   [0, 350]
            IEEE float
4           4 bytes signed   [0, 350]
            IEEE float


4           4 bytes signed   [-20, 20]
            IEEE float


2           2 bytes        [0, 65535]
            unsigned short




2           2 bytes        [0, 65535]
            unsigned short




2           2 bytes        [0, 65535]
            unsigned short
2   2 bytes        [0, 65535]
    unsigned short




2   2 bytes        [0, 65535]
    unsigned short




4   4 bytes         [0, 2147483648]
    unsigned
    integer


2   2 byte unsigned [0, 65535]
    short



2   2 byte unsigned [0, 65535]
    short

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:4
posted:10/1/2011
language:English
pages:8