Fixing magnetometer based azimuth according to sun positioning

A system for improving azimuth accuracy of a Line Of Sight (LOS) by adjusting an azimuth value obtained from at least one magnetometer based inertial sensor according to the sun position, comprising:

• at least one magnetometer based inertial sensor;
• at least one imaging sensor;
• at least one location sensor;
• and
• at least one processor coupled to said at least one magnetometer based inertial sensor, said at least one location sensor and said at least one imaging sensor, said at least one processor is adapted to execute a code, said code comprising:
• code instructions to obtain a location, elevation and time from said at least one location sensor,
• code instructions to obtain a sensor based azimuth value of a LOS of said at least one imaging sensor from said at least one magnetometer based inertial sensor,
• code instructions to obtain at least one image captured by said at least one imaging sensor, said at least one image depicting the sun,
• code instructions to calculate an actual azimuth value of said LOS according to said location, said elevation and said time with respect to a center of the sun computed by analyzing said at least one image, and
• code instructions to adjust automatically said sensor based azimuth value according to said actual azimuth value.