#Orbit Trouble

1 messages · Page 1 of 1 (latest)

half ferry
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Yes, I know that this is probably a really easy fix but bear with me here. (This is why I need the KSP2 tutorials lol)

Most times that I try to get into orbit I will burn with a slight gravity turn until I get an apoapsis of 70km, then I'll time warp to my apoapsis and fire my engines prograde until my periapsis is over 70km. The problem is that most times I do this, the burn ends up increasing the apoapsis more than anything else, making it so that if I do ever have a high enough periapsis, my apoapsis will be massive. What stupid mistake am I making here?

calm gazelle
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if you pitch above and below level while burning you can change your vertical speed if you keep your vertical speed at 0 you will always be at apoapsis and you can get realy close to circular orbit

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(level is the boundary between blue and orange on the ksp navball if you are in the blue you will increase your vertical speed and decrease it if you are pointed toward the orange area)

half ferry
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Ah alright, I'll try that out. Thank you so much!

short plume
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a lot of the physics is just super simple concepts but put in ways you dont think about. On your next orbital insertion burn, watch the apoapsis.
Apoapsis is the high point of your orbit. If it's ahead of you, youre going up still. If it's behind you, you're going down.

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But, that means it's exactly the same when entering orbit.

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If you're doing an insertion burn and your apogee is behind you and getting higher, pull up, since you're rocket is falling down. If it's ahead of you and getting higher, angle down to stop your rocket from continuing to gain altitude

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Also when you're almost in orbit, don't be afraid to really really angle things. If your orbit is really screwy you can be angling 30+ degrees off level.

half ferry
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I see, thanks.

half ferry
short plume
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is it behind or infront of you?

thorn echo
thorn echo
half ferry
short plume
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and youve even tried pitching up to like 90 degrees vertical?

half ferry
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Yep.

short plume
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that shouldn't happen then? that's not how any of it works

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burning straight up away from the planet raises your orbit 90 degrees ahead of you, so it can't raise it behind you

half ferry
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Am I supposed to burn it back?

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I'm confused but I bet it's just me.

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I'll try that again.

calm gazelle
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Maybe try starting the burn earlier so you have time to circularize before falling back down or increasing your thrust on your orbital stage

half ferry
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Good idea, I'll try that.

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That worked! Thank you so much!