************************************************

This file describes the structure of the PLMR
data files provided on the NAFE'05 data archives.
Each record in the file consist of one bi-polarized
(Vertical or Horizontal) brightness temperature
observation at one specific view angle (described by
the parameter "beam").

Each record contains 42 columns with the brightness
temperatures and a set of aircraft parameters.


*************************************************

Record structure
----------------


%b   [.Column(1)]
%      Label=Date
%      Type=Date
%      Format="%0{y.m.d}D"
%      Description: Date of acquisition

%    [.Column(2)]
%      Label=Time
%      Type=Time
%      Format="%0{h.m.s..ms}"
%      Description: Time of acquisition

%    [.Column(3)]
%      Label=Time elapsed
%      Unit=s
%      Type=Real
%      Format="%9.3lf"
%      Description: PLMR reference time

%    [.Column(4)]
%      Label=Polarisation
%      Type=(V,H)
%      Format="%(V,H)"
%      Description: Polarisation

%    [.Column(5)]
%      Label=Beam
%      Type=(4L,3L,2L,1L,1R,2R,3R,4R)
%      Format="%(4L,3L,2L,1L,1R,2R,3R,4R)"
%      Description: Beam number

%    [.Column(6)]
%      Label=Latitude
%      Unit=deg
%      Type=Double
%      Format="%10.6lf"
%      Description: DEM projected latitude of beam centre

%    [.Column(7)]
%      Label=Longitude
%      Unit=deg
%      Type=Double
%      Format="%11.6lf"
%      Description: DEM projected longitude of beam centre

%    [.Column(8)]
%      Label=Elevation
%      Unit=m
%      Type=Real
%      Format="%6.1f"
%      Description: elevation above sea level of beam centre from DEM

%    [.Column(9)]
%      Label=Incidence angle
%      Unit=deg
%      Type=Real
%      Format="%6.2f"
%      Description: DEM projected beam incidence angle

%    [.Column(10)]
%      Label=Major radius
%      Unit=m
%      Type=Real
%      Format="%4.0f"
%      Description: DEM projected major radius of beam footprint

%    [.Column(11)]
%      Label=Minor radius
%      Unit=m
%      Type=Real
%      Format="%4.0f"
%      Description: DEM projected minor radius of beam footprint

%    [.Column(12)]
%      Label=Rotation angle
%      Unit=deg
%      Type=Real
%      Format="%5.1f"
%      Description: angle of footprint major axis (deg E of N)

%    [.Column(13)]
%      Label=B count[V or H]
%      Type=UInt16
%      Format="%5wu"
%      Description: raw data used to calculate brightness temperatures

%    [.Column(14)]
%      Label=Gamma[V or H]
%      Type=Real
%      Format="%7.4f"
%      Description: raw data used to calculate brightness temperatures

%    [.Column(15)]
%      Label=T_{B[V or H]}
%      Unit=K
%      Type=Real
%      Format="%5.1f"
%      Description: Vertically or horizontally polarized brightness temperature

%    [.Column(16)]
%      Label=Aircraft latitude
%      Unit=deg
%      Type=Double
%      Format="%10.6lf"

%    [.Column(17)]
%      Label=Aircraft longitude
%      Unit=deg
%      Type=Double
%      Format="%11.6lf"
%
%    [.Column(18)]
%      Label=Altitude
%      Unit=m
%      Type=Real
%      Format="%6.1f"
%      Description: Aircraft altitude above sea level

%    [.Column(19)]
%      Label=Speed
%      Unit=m s^{-1}
%      Type=Real
%      Format="%6.2f"
%      Description: Aircraft ground speed

%    [.Column(20)]
%      Label=Track
%      Unit=deg
%      Type=Real
%      Format="%5.1f"
%      Description: Aircraft path direction (deg E of N)

%    [.Column(21)]
%      Label=Roll
%      Unit=deg
%      Type=Real
%      Format="%6.2f"
%      Description: Aircraft roll (+ right wing down)

%    [.Column(22)]
%      Label=Pitch
%      Unit=deg
%      Type=Real
%      Format="%6.2f"
%      Description: Aircraft pitch (+ nose up)

%    [.Column(23)]
%      Label=Heading
%      Unit=deg
%      Type=Real
%      Format="%6.2f"
%      Description: Aircraft heading(deg E of N)

%    [.Column(24)]
%      Label=Cold count
%      Unit=
%      Type=UInt16
%      Format="%5wu"
%      Description: Cold load 'temperature' (count)

%    [.Column(25)]
%      Label=Warm count
%      Unit=
%      Type=UInt16
%      Format="%5wu"
%      Description: Warm load 'temperature' (count)

%    [.Column(26)]
%      Label=T_{Receiver}
%      Unit=^oC
%      Type=Real
%      Format="%6.3f"
%      Description:Temperature of receiver 

%    [.Column(27)]
%      Label=T_{Antenna[FL]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of antenna FL 

%    [.Column(28)]
%      Label=T_{Antenna[BL]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of antenna BL 

%    [.Column(29)]
%      Label=T_{Antenna[FR]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description: Temperature od antenna FR

%    [.Column(30)]
%      Label=T_{Antenna[BR]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of antenna BR

%    [.Column(31)]
%      Label=T_{Antenna[Mid]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description: Temperature of antenna middle

%    [.Column(32)]
%      Label=T_{Hot load}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description: Temperature of hot load

%    [.Column(33)]
%      Label=T_{Butler matrix}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of Butler matrix

%    [.Column(34)]
%      Label=T_{Enclosure}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description: Temperature of enclosure

%    [.Column(35)]
%      Label=T_{Feed board}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description: Temperature of feed board

%    [.Column(36)]
%      Label=T_{E-plate[BR]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of E plate BR

%    [.Column(37)]
%      Label=T_{E-plate[BL]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%      Description:Temperature of E plate BL

%     [.Column(38)]
%      Label=T_{Down}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%
%     [.Column(39)]
%      Label=T_{Body[Down]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%
%    [.Column(40)]
%      Label=T_{Up}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"
%
%    [.Column(41)]
%      Label=T_{Body[Up]}
%      Unit=^oC
%      Type=Real
%      Format="%5.2f"

%    [.Column(42)]
%      Label=Radar altimeter
%      Unit=m
%      Type=Real
%      Format="%6.1f"