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OMNI Data Format

Copyright WDC C1 for STP at RAL.


The OMNI data files have the following structure:

  Name          Dimension  Type   Width  Decimal  NullValues   Units
  ------------  ---------  ----  ------  -------  ----------  ------
  Date                  3  S          4        -   	   0       -
  Time                  3  S          2        -   	  -1       -
  SC_IMF                1  S          2        -   	   0       -
  SC_SW                 1  S          2        -   	   0       -
  N_mag                 1  S          3        -   	   0       -
  N_sw                  1  S          3        -   	   0       -
  FMA                   1  R          6        1     0.00000      nT
  MAFV                  1  R          6        1     0.00000      nT
  lat                   1  R          6        1     0.00000     Deg
  long                  1  R          6        1     0.00000     Deg
  Mag_field             5  R          6        1     0.00000      nT
  s_mag_b               1  R          6        1     0.00000      nT
  s_bt                  1  R          6        1     0.00000      nT
  s_b                   3  R          6        1     0.00000      nT
  T                     1  R          8        0     0.00000       K
  Density               1  R          5        1     0.00000  Per cc
  Speed                 1  R          6        0     0.00000    Km/s
  Fl_long               1  R          6        1     0.00000     Deg
  Fl_lat                1  R          6        1     0.00000     Deg
  S_T                   1  R          8        0     0.00000       K
  S_den                 1  R          5        1     0.00000  Per cc
  S_speed               1  R          5        1     0.00000    Km/s
  S_fl_long             1  R          5        1     0.00000     Deg
  S_fl_lat              1  R          5        1     0.00000     Deg

Field Definitions

A summary of field definitions is available separately.

Field Types

  Code  Data Type                     Storage
  ----  ----------------------------  -------
     C  CHARACTER                     1 byte
     P  DOUBLE PRECISION REAL         8 bytes
     R  REAL                          4 bytes
     I  INTEGER                       4 bytes
     S  SMALL INTEGER                 2 bytes
     B  BYTE (unsigned integer 0-255) 1 byte