Computes the radiation flux at each
electron and proton energy level. The energy levels are determined
by the computational mode. The report is divided into subsections,
where each subsection corresponds to a different constituent and
energy level. Valid when using NASA or CRRES models. Valid for
vehicles whose central body is earth.
Name |
Dimension |
Type |
Description |
Time |
DateFormat |
Real Number |
Time. |
Flux |
FluxPerParticleEnergy |
Real Number or Text |
The radiation flux at the given time. |
Mag field
intensity |
MagneticFieldUnit |
Real Number |
The magnitude of the magnetic field at the
vehicle's location. |
Dipole
L-shell parameter |
Unitless |
Real Number |
The L value for the field line passing through the
vehicle's location computed using the dipole approximation to the
magnetic field. For a dipole field line, the L value corresponds to
the distance, measured in earth mean radii, at the point on the
field line at the magnetic equator. (For a dipole field, this point
is also the furthest extent of the field line from the earth.) |
McIlwain L-shell parameter |
Unitless |
Real Number or Text |
A measure that indicates a particle's drift shell
in the magnetic field at the vehicle's location, as defined by Carl
McIlwain (J. Geophys. Res. 1961). The value is computed as a
function of several magnetic invariants along a field line and thus
its computation requires field line tracing. It is not strictly a
constant over the entire field line. In cases where the field line
is close to the dipole field line (i.e., the field line traced
using only the dipole component of the magnetic field model), the
value will be close to the dipole L-shell parameter. |
McIlwain Abs(L-shell)
parameter |
Unitless |
Real Number or Text |
The absolute value of the McIlwain L-shell
parameter |
B/Beq |
Unitless |
Real Number or Text |
The ratio of the magnetic intensity at the
vehicle's location to the minimum magnetic intensity along the
field line through the vehicle's location. |
Beq |
MagneticFieldUnit |
Real Number or Text |
The minimum magnetic intensity along the field line
through the vehicle's location. The minimum value occurs at the
magnetic equator, at the furthest extent of the field line from the
earth. |
Lat |
LatitudeUnit |
Real Number |
The detic latitude (i.e., angle between the detic
subpoint's surface normal vector and the XY plane.) |
Lon |
LongitudeUnit |
Real Number |
The detic longitude (i.e., angle from the X-axis
locating the projection of the detic subpoint's surface normal
vector onto the XY plane.) Longitude increases in the direction
found using the right-hand rule about the Z-axis. |
Alt |
DistanceUnit |
Real Number |
The altitude value (i.e., magnitude of the relative
position vector between the object and its detic subpoint). |
15 day Avg Ap |
Unitless |
Real Number |
The average of the daily Ap value, over the
previous 15 days. The Ap value is set according to the settings on
the SEET radiation panel. When using a flux file to set Ap, the 15
day average is computed for each day and then the table of values
is interpolated to determine the value at the given time. |