Determining time to launch to an inclined target's plane in orbit

[dlrk]

I'd like to understand how to determine how to time a launch to launch directly into an inclined target body's (moon/spacecraft) plane without eyeballing it. I understand that it should be at that objects AN/DN with the launch spacecraft, but how can that be seen or determined in MechJeb, KER or stock KSP?

Edited May 9 by dlrk

[king of nowhere]

19 hours ago, dlrk said:

I'd like to understand how to determine how to time a launch to launch directly into an inclined target body's (moon/spacecraft) plane without eyeballing it. I understand that it should be at that objects AN/DN with the launch spacecraft, but how can that be seen or determined in MechJeb, KER or stock KSP?

i am not aware of any exact method in stock. maybe mechjeb has a way.

[Hotel26]

3 hours ago, king of nowhere said:

determined in MechJeb, KER or stock KSP?

You didn't mention KAC (Kerbal Alarm Clock) but that is an essential mod.  (I have verified it will give you the launch time for a vehicle sitting on the launch pad.)

If you can determine that the stock alarm clock has the same functionality, all that much better for you.

Spoiler

I don't just *heart* KAC...

...I can't *live* without KAC.

 

[LN400]

Personally, I used KER, setting one button to display time and angle to AN/DN. Seems to work fairly well.

[nrum7366]

I would say understanding how a navball works, lucky for Kerbin the equator is at 0degrees. So go at an angle of 90o you are going east. 180 you will be going south. 

If you have a space station in orbit of Kerbin of inclination of 45degrees, launch from KSP and aim for 45degrees.  You will match the plane or be as pretty close. simple.

If the plane of another planet is say, 10degrees positive, then launch at 80degrees on the Navball. 

Timing is the tricky bit. Some say launch when it is directly above you. I prefer to launch when the target is in orbit opposite side of the planet if it is in a higher orbit what you intent to launch too. mainly as I prefer to catch up to the target from below.  If you are going to another planet then use the transfer window for the correct timing.