How to attain Geosynchronous Orbit above KSC with MechJeb2?

[soupcan]

Hi all! I'm aware this question has been asked before (I've done some extensive googling), but I'm still having trouble even after lots of reading. I'd like to get a command module directly above KSC to act as a RemoteTech relay. The best I've been able to do on my own was an orbit with an AP~2900km/PE~2600km/INC 0*. This was workable but not optimal since it would occasionally go out of contact with KSC. I've tried using MechJeb's Ascent Guidance set to 2868km but this ends up putting the module (If I recall correctly) 90* away from KSC. How can I use MechJeb to get it directly above KSC? I'm using MechJeb v2.0.7, RemoteTech v0.5.0.0, and ISA MapSat v3.3.4. In the meantime I'm going to continue trying manually.

[corvus2606]

put your module into a 100km orbit around kerbin, then set up a manoeuvre to be executed when you're on the opposite side of the planet from KSC. when you burn at that point out to 2868km approx, you will end up within tolerance of being above the KSC, then circularise and you're done

[MockKnizzle]

Coincidentally, I just performed the exact same mission a day ago. As corvus said, you're gonna want to first get into a parking orbit and then initiate your transfer burn on the other side of the planet. While it might theoretically be possible to launch in some way that you raise your initial apoapse to kerbostationary altitude in a single burn, it would likely involve some strange +/- radial aiming to get the longitude correct. I'm unsure if MechJeb 2 has any functionality for this, and I know the previous version doesn't.

Easiest to just set it up with maneuver nodes from a parking orbit.

[Flixxbeatz]

As long as you know the required altitude, then you'll have no problem.

Here am I (almost perfectly) doing it back in 0.12(?), where there are no such things as mechjeb and maneuver nodes

[Fyrem]

while this is a horribly wastefull (fuel) method, it will work.

*set desired alt to 2868k

*edit flight path to Start turn: 2868, end turn 2868, shape: doesn't matter

launch.

in other words, fligh STRAIGHT UP till 2868, then circ.

(ok, you won't be EXACTLY above KSP, but will be darn close).

Once MJ is done, open up the Orbital Info page.. look for Orbital speed.

Use RCS or a low power engine and adjust your Orbital period (burn prograde/retrograde) as needed to get an Orbital period of 21,600.000s, or 6h 0m 0s, or one Kerbin day

the Orbital period is what you really want to get right, do not worry if your AP/PE are off a bit, as it is the "time it takes your sat to orbit" that must match KSP's "day".

Edited May 9, 2013 by Fyrem