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11.0 -Calculating Launch Azimuth with DGIV calculator
The formula to calculate a launch heading is : Launch Azimuth = arcsin (cos (desired_orbital_inclination) / cos (launch_ latitude))
To be more elegant you can calculate that with the DGIV inboard calculator:
Example:
Take the scenario « Earth/Landed KCS departure ISS » Open the Orbit MFD set ISS as target SET Projection to EQU (click on FRM button) and notice the target « INC » value=51.56° Now open the surface MFD and note your latitude = 28.591° N