// param[0] + param[1]*tx^2 + param[2]*tx dSlope_fringe + param[3]*ty^2 +
// param[4]*dSlope_fringe^2
static constexpr std::array<float, 5> zMagnetParamsRef{
    5204.729545537934f, -387.1604297569372f, 705.703368383061f,
    -130.4228104977988f, 456.22741000190507f};
// param[0] + param[1]*dSlope_xEndT_abs + param[2]*x_EndT_abs + param[3]*tx^2 +
// param[4]*dSlope_xEndT^2
static constexpr std::array<float, 5> zMagnetParamsEndT{
    5282.8857365336835f, 32.97139765811308f, 0.016479669422211504f,
    -1669.9634597720649f, 292.1044781675942f};