This section describes functions from file tsyganenko.ct.
[Bx,By,Bz] = T89(Kp,x,y,z)
[Bx,By,Bz] = T89(Kp,x,y,z) computes the Tsyganenko-89 model
magnetic field. Inputs: Kp, the Kp index; x,y,z, GSM coordinates
in Earth radii. Outputs: total magnetic field in nanotesla in
GSM coordinates.
Error codes:
-1: Bad type of input arg
[theta,phi] = m2i(Kp,x,y)
[theta,phi] = m2i(Kp,x,y) maps the equatorial plane point (x,y,z=0)
to the northern ionosphere. Inputs: Kp, the Kp index; x,y,z, GSM
coordinates in Earth radii. Outputs: colatitude and longitude in
magnetic coordinates in degrees.
Error codes:
-1: Bad type of input arg
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