Struct

`space::irbem::MeadParameters`

cheatah-space v0.1.0-alpha — Biome Standard 0.6.5-alpha

One Kp group's coefficients — Mead & Fairfield (1975), one column of Tables 2-3.

Named rather than indexed so that the evaluator reads as the three equations in the file brief and each divergence identity names the three coefficients it relates. Templated on the scalar type for the same reason T89Parameters is: the device kernel receives these as float, and the host lane it is verified against must round them FIRST and then evaluate, or a disagreement between the lanes cannot be attributed. mead_parameters is the converter.

Units: nanotesla, with positions in Earth radii and the tilt in degrees — each coefficient's unit is whatever makes its term come out in nT.

Template parameters

`T`	the scalar type; `double` for the reference lane, `float` for the device-mirroring one.

Unit testIrbemMead.PublishedCoefficientsAreDivergenceFree

Constants & variables

var T bx_z #

a_1: the z term of B_x.

var T bx_xz #

a_2: the x_m z term of B_x.

var T bx_t #

a_3: the tilt-proportional constant of B_x.

var T bx_tx #

a_4: the psi x_m term of B_x.

var T bx_txx #

a_5: the psi x_m^2 term of B_x.

var T bx_tyy #

a_6: the psi y_m^2 term of B_x.

var T bx_tzz #

a_7: the psi z^2 term of B_x.

var T by_yz #

b_1: the y_m z term of B_y.

var T by_ty #

b_2: the psi y_m term of B_y.

var T by_txy #

b_3: the psi x_m y_m term of B_y.

var T bz_1 #

c_1: the constant of B_z — the ring-current-plus-tail depression at the origin.

var T bz_x #

c_2: the x_m term of B_z — dayside compression, nightside stretching.

var T bz_xx #

c_3: the x_m^2 term of B_z.

var T bz_yy #

c_4: the y_m^2 term of B_z.

var T bz_zz #

c_5: the z^2 term of B_z.

var T bz_tz #

c_6: the psi z term of B_z.

var T bz_txz #

c_7: the psi x_m z term of B_z.