
fgmhrt  --  transform CLUSTER FGM high-resolution data 

USAGE:

  ... | fgmhrt [-a <attfile>] [-d <delta>] [-s <sys>] | ...

  The program performs a coordinate transformation on high-resolution
  (non-averaged) CLUSTER FGM vectors (in fgmtvec_t format). 

  On input, the vectors may be in one of the following coordinate systems:
  'fsr' (FGM spin reference), or 'sr' (spin reference).

  If in the FGM status word, the bit for 'averaged data' is set, fgmhrt
  proceeds from the non-spinning version of the input coordinate system.
  In this case, if fgmhrt has to despin the data, it will use a fixed 
  spin phase value of 0.0, and it will clear the bit for 'averaged data',
  again.  Therefore, this program should not be used with data that has
  really been averaged!

OPTIONS:

  -a     use <attfile> as attitude file (*ga* on the CDROM). The file may, 
         or may not contain DDS-headers. Default is to use the filename: 
         '$SATTPATH/satt.cl#'(#=1,2,3,4), which contains preprocessed 
         attitude file, DDS-headers beeing removed.

  -d     use <delta> as the number of seconds after which new transformation
         matrices to GSE, GSM, and SM are computed. 
         Default is 1 sec.

  -s     select the output coordinate system <sys>
         <sys> may be
         'sr'   for spin-reference system,
         'scs'  for spacecraft-sun system,
         'gse'  for geocentric solar ecliptic system (default), 
         'gsm'  for geocentric solar magnetospheric system,
         'sm'   for solar magnetic system, or
         'j2k'  for geocentric equatorial inertial system of epoch J2000.

  -V     print version number on stdout, then exit.

AUTHORS:
 
 Edita Georgescu  (eg@mpe.mpg.de)
 Stephan Buchert  (scb@geophys.nat.tu-bs.de)
 Reinhold Kempen  (reinhold@geophys.nat.tu-bs.de)
 Joerg Warnecke   (joerg@igpp.ucla.edu)

