
igmvec  --  writing ASCII output of IGM structure to stdout

USAGE:

 ... | igmvec [-t <int>] [-e] [-s] [-d [<int>]] [-m] [-v] [-f]
              [-i <cal>] [-o <outfile>]
 
 The program reads CLUSTER FGM data extended with position information
 (in fgmtrec format) from stdin and writes the time stamped magnetic field 
 vectors and the satellite positon vectors in cartesian coordinates as an ASCII
 listing to stdout. With option '-s' the output coordinate system is spherical

OPTIONS:

  -t     print the time information in the following form:
         <int> = 0 : ISO standard time string like '2000-12-02T02:05:15.798Z'
         <int> = 1 : (double) seconds of the day
         <int> = 2 : (double) hours of the day
         Default is the ISO time string.

  -e     position vector in Earth radii [Re=6317.2 km]. Default is [km].
   
  -s     spherical coordinate system output. Angles are in [deg].
         The precision in position is 0.1 km.
 
  -d     precision for the magnetic field output. 
         <int> is the number of decimal places. Possible values: 1,2,3 
         If '-d' but no <int> given, default is 1, i.e. 0.1 nT precision.
         Default is to use a format according to the data resolution.
 
  -m     add the magnitude to each output vector.

  -v     add the raw data variance (for high-resolution data) or 
         the normalized variance of the magnetic field magnitude
         (for averaged data) to each output vector.

  -f     add the data acquisition frequency to each output vector.
 
  -i     append calibration filename info & output column names to output.
         
  -o     use <outfile> as output file. If '-o', but no <outfile> given
         default name is : C#_yyyymmdd_sys.txt, where #=1,2,3,4 stands for
         satellite number and sys for the output coordinate system.
         Default is to write to stdout.

  -V     print the version number on stdout, then exit.

AUTHORS:

 Edita Georgescu      (eg@mpe.mpg.de)
 Karl-Heinz Fornacon  (k-h.fornacon@tu-bs.de)
