OK so I've done some reading and searching, but reliably calculating launch azimuth still escapes me.
I've set up a scenario on Europa as attached - two DeltaGliders, one in orbit the other on the ground at (0,0).
I get into the DG on the ground, set up OrbitMFD with the other DG as target, make sure it's "From" is set to EQU and read off the target inclination: 40.18.
So my calculation (from here: http://www.orbiterwiki.org/wiki/Launch_Azimuth), is:
Yet, if I launch at that heading (i.e. just a hair under 50 deg), I get to an orbit with 80 deg relative inclination to my target.
What am I missing here?
I've set up a scenario on Europa as attached - two DeltaGliders, one in orbit the other on the ground at (0,0).
I get into the DG on the ground, set up OrbitMFD with the other DG as target, make sure it's "From" is set to EQU and read off the target inclination: 40.18.
So my calculation (from here: http://www.orbiterwiki.org/wiki/Launch_Azimuth), is:
Code:
B = arcsin(cos(40.18)/cos(0))
= arcsin(0.76402...)
= 49.82
Yet, if I launch at that heading (i.e. just a hair under 50 deg), I get to an orbit with 80 deg relative inclination to my target.
What am I missing here?