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convert Igrf13 model vector from nT to uT
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Marius Eggert 2023-02-14 13:54:06 +01:00
parent a75e035cc5
commit 650f24d0ff
2 changed files with 3 additions and 7 deletions
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9
mission/controller/acs/Igrf13Model.cpp
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@ -20,6 +20,7 @@ Igrf13Model::~Igrf13Model() {}
void Igrf13Model::magFieldComp(const double longitude, const double gcLatitude, void Igrf13Model::magFieldComp(const double longitude, const double gcLatitude,
const double altitude, timeval timeOfMagMeasurement, const double altitude, timeval timeOfMagMeasurement,
double* magFieldModelInertial) { double* magFieldModelInertial) {
double magFieldModel[3] = {0, 0, 0};
double phi = longitude, theta = gcLatitude; // geocentric double phi = longitude, theta = gcLatitude; // geocentric
/* Here is the co-latitude needed*/ /* Here is the co-latitude needed*/
theta -= 90 * PI / 180; theta -= 90 * PI / 180;
@ -100,12 +101,8 @@ void Igrf13Model::magFieldComp(const double longitude, const double gcLatitude,
magFieldModelInertial[2] = magFieldModelInertial[2] =
magFieldModel[0] * sin(gcLatitude) - magFieldModel[1] * cos(gcLatitude); magFieldModel[0] * sin(gcLatitude) - magFieldModel[1] * cos(gcLatitude);
double normVecMagFieldInert[3] = {0, 0, 0}; // convert nT to uT
VectorOperations<double>::normalize(magFieldModelInertial, normVecMagFieldInert, 3); VectorOperations<double>::mulScalar(magFieldModelInertial, 1e-3, magFieldModelInertial, 3);
magFieldModel[0] = 0;
magFieldModel[1] = 0;
magFieldModel[2] = 0;
} }
void Igrf13Model::updateCoeffGH(timeval timeOfMagMeasurement) { void Igrf13Model::updateCoeffGH(timeval timeOfMagMeasurement) {

1
mission/controller/acs/Igrf13Model.h
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@ -47,7 +47,6 @@ class Igrf13Model /*:public HasParametersIF*/ {
// Coefficient wary over year, could be updated sometimes. // Coefficient wary over year, could be updated sometimes.
void updateCoeffGH(timeval timeOfMagMeasurement); // Secular variation (SV) void updateCoeffGH(timeval timeOfMagMeasurement); // Secular variation (SV)
double magFieldModel[3];
void schmidtNormalization(); void schmidtNormalization();
private: private: