Here's a 12 minute video I made which shows how to get into a circular orbit at a specific height and back again:
I hope it's useful. Here's the description that is shown in the video: Getting the crew where you want them and back: 1. Get into a low orbit 2. Make the orbit circular 3. Get to the desired altitude (using a Hohmann transfer orbit) 4. Get back to about 50 km (using a Hohmann transfer orbit) 5. De-orbit 1. Get into orbit -Launch -At about 10 km slowly start lowering the nose in the desired heading (in this case 090). -The horizontal speed should be at least 2349 m/s at 40 km. 2. Make the orbit circular -Likely you're now going up in an epiliptical orbit. Calculate the orbit-speed of the altitude you expect to be at at apoapsis (highest altitude relative to Kearth). -If you overshoot try again at the new apoapsis. 3. Get to the desired altitude (using a Hohmann transfer orbit) -Calculate the speed needed to reach the desired altitude -Example: Altitude 60.000 m -> 300.000 m (altitude of ISS) Required acceleration 2312,8 m/s -> 2484,4 m/s At apoapsis accelerate -Example: An apoapsis of 305.690 m requires 1980,6 m/s for the orbit to become circular. 4. Get back to about 50 km (using a Hohmann transfer orbit) -Going to a lower orbit enables landing to be more precise. It doesn't take extra fuel since the burns involved are 2 deceleration burns. -An altitude of 50 km allows you to overshoot slightly without entering the atmosphere. -Example: Altitude 305.200 m -> 50.000 m Required deceleration 1974,9 m/s -> 1805,6 m/s At periapsis (lowest altitude relative to Kearth) decelerate. -Example: A periapsis of 48.790 requires 2332,7 m/s for the orbit to become circular. 5. De-orbit. -Use your remaining fuel. Made by Atreides Youtube-channel: EagleNED Programs used: Kerbal Space Program v 0.8.5 http://www.kerbalspaceprogram.com/ Kerbal Space Program Calculator v 0.8.1 (by Warringer)