The direction taken by a space vehicle as it is launched. The launch azimuth is given by the angle between the vehicle's trajectory (mapped onto the horizon) and a vertical line from the north point of the horizon. If the vehicle is heading due east, the launch azimuth is 90°. The Kennedy Space Center allows launch azimuths between 35° (to the northeast) and 120° (to the southeast), to avoid flying over populated areas.
Subjects: Astronomy and Astrophysics.