Launch Azimuth
Estimate inertial launch azimuth needed to reach a target inclination from a launch latitude.
East-relative azimuth
45.02 deg
northward branch measured from due east
Southward branch
314.98 deg
paired east-relative branch for descending track
Minimum inclination
28.50 deg
direct launch floor set by launch-site latitude
Latitude and launch plane
A launch site can directly target inclinations no lower than its latitude; azimuth steers the orbit plane north or south of due east.
45.02 deg from east
Geometry relation
cos A = cos i / cos phi
Reachability floor
i min = 28.50 deg
set by absolute launch latitude
Northward branch
45.02 deg
angle measured away from due east
Southward branch
314.98 deg
paired branch in this simplified convention
Open Source and Easy to Use Elsewhere
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