10:23 <queqiao-> ⟨jasman3764⟩ My Principia burns (with MechJeb) are very inaccurate. I'm missing the moon by 5Mk. Is there any way to make them more accurate?

11:05 <queqiao-> ⟨Justsome Randomname⟩ that happens to me when I use a high TWR injection stage like scud in my case so maybe use a stage with less thrust/pack more RCS

11:26 <queqiao-> ⟨ebinmemes22⟩ The wiki says this:

11:26 <queqiao-> "The first thing to do is to establish the reference frame. You select a target vessel in map view by checking "Select target vessel..." in the main Principia window and clicking on the vessel. Then you set the speed display of the navball to target mode."

11:26 <queqiao-> but there is no such button. is this a bug, a skill issue or what?

11:27 <queqiao-> ⟨siimav⟩ There should be a "KSP features" button.

11:28 <queqiao-> ⟨egg⟩ ⟪siimav⟫ There should be a "KSP features" button. ⮪ No. That is only for targeting a celestial.

11:28 <queqiao-> ⟨ebinmemes22⟩ there's only "display patched conics"

11:30 <queqiao-> ⟨egg⟩ you may need to have upgraded your Tracking Station to the appropriate level.

11:30 <queqiao-> ⟨ebinmemes22⟩ do i need to upgrade the tracking station or something?

11:30 <queqiao-> ⟨ebinmemes22⟩ i c

11:30 <queqiao-> ⟨ebinmemes22⟩ that's dumb, when i was in range of a vessel and clicked on it in flight view it selected as a target

11:34 <queqiao-> ⟨ebinmemes22⟩ thanks for your, bye

12:44 <queqiao-> ⟨jasman3764⟩ Am I doing something wrong? At the end of the burn I am waaaaaaay off!

12:44 <queqiao-> ⟨jasman3764⟩ https://matrix.mockingbirdnest.com/_matrix/media/r0/download/matrix.mockingbirdnest.com/CmbcqjVyXtbAZafdoOTTxFrt/20230824134337_1.jpg

13:10 <queqiao-> ⟨blothorn⟩ Your maneuvering frame should probably be ECI.

13:50 <queqiao-> ⟨jasman3764⟩ MEO says for flybys of the moon, to or from it, though.

13:53 <queqiao-> ⟨nazfib⟩ Yes, you usually want MEO as a plotting frame when planning a lunar transfer. Doesn't mean that you want your manoeuvre frame to be the same, though; very commonly, you'll want the manoeuvre frame to be xCI where x is the body you're orbiting.

13:54 <queqiao-> ⟨jasman3764⟩ can you please explain what the Rebase button does to your plan?

13:56 <queqiao-> ⟨nazfib⟩ ⟪jasman3764⟫ can you please explain what the Rebase […] ⮪ The flight plan always starts from your trajectory at the time you created the flight plan. That means for example, that if you've used RCS to rotate your craft, your actual trajectory might be different from the flight plan trajectory - it doesn't automatically update. The rebase button re-creates the flight plan starting from your actual current position, and adding...

13:57 <queqiao-> ... in the same manoeuvres.

13:57 <queqiao-> ⟨jasman3764⟩ ⟪nazfib⟫ Yes, you usually want MEO as a plotting […] ⮪ Thanks, so plan in MEO and then burn in MCI?

13:57 <queqiao-> ⟨nazfib⟩ For a TLI burn, I'd use ECI as the manoeuvre frame and MEO as the plotting frame. They don't have to be the same.

13:58 <queqiao-> ⟨jasman3764⟩ ⟪nazfib⟫ For a TLI burn, I'd use ECI as the […] ⮪ I will try that, thank you.