This is the README file for MAGBSC

MAGBSC contains the Dynamics Explorer-2 (D2) MAGB instrument data in Spacecraft
Coordinates (SC) that was included with the MAGB VAX binary data file.  The
following are the extracted instrument values included within the DE-2 MAGBSC
CDF files:

 Sensor  MAGB Parameter        Unit             valid Range
   0     Measured Bx            nT              -65,000 to 65,000
   1     Measured By            nT              -65,000 to 65,000
   2     Measured Bz            nT              -65,000 to 65,000
   7     Modeled Bx             nT              -65,000 to 65,000
   8     Modeled By             nT              -65,000 to 65,000
   9     Modeled Bz             nT              -65,000 to 65,000

In addition, the following items were added to the CDF files:

 Sensor  MAGB Parameter         Unit            valid Range
   3     Measured Bxy Projection nT             0 to 65,000
   4     Measured B Magnitude    nT             0 to 65,000
   5     Measured Theta B        deg            -90 to 90
   6     Measured Phi B          deg            0 to 360
  10     Modeled Bxy Projection  nT             0 to 65,000
  11     Modeled B Magnitude     nT             0 to 65,000
  12     Modeled Theta B         deg            -90 to 90
  13     Modeled Phi B           deg            0 to 360
  14     Measured B Pressure     nPa            0 to 1.68e6
  15     Modeled B Pressure      nPa            0 to 1.68e6

Here Bxy is the magnitude Projection of the magnetic field in the x-y plane
of the spacecraft (the same plane as the LAPI sensors measure) and B Magnitude
is the total magnitude of the magnetic field.  The Theta B is the polar angle
that the magnetic field makes with the spacecraft z axis and Phi B is the
azimuthal angle that the magnetic field makes with the spacecraft x axis
(note, all angles are defined to be right handed).  B Pressure is the
magnetic pressure computed by:

      0.5 * B**2 / mu0

        where mu0 = 4.0 * M_PI * 1.0e-7 and
              M_PI is 3.14159265358979323846

All variables are stored as 4 byte real numbers where -3.4e+38 is used to
indicate a fill value.

Additional available units in the CDF are Gauss, Tesla, and Pascal.

No Status information is included in this CDF.  The MAGBSC CDF files were
generated by converting the VAX binary format stored at the Space Physics
Data Facility (SPDF).  The VAX binary format was converted from the original
Sigma-9 machine that was used to collect and process Dynamics Explorer
telemetry.  The MAGB VAX binary file contained data in the spacecraft 
reference frame and is stored at the cadence of the MAGB instrument.

Magnetometer values are considered instantaneous measurements.  They have no 
accumulation period, only data latency between measurements.