I am going to Moho and back with limited fuel, and I am using gravity assists to make things cheaper.

Shortly in the future I will have my last Kerbin flyby, which will send me on an Eve flyby, which will give the final correction for moho.

To have the lowest intercept speed, my final orbit must barely touch Moho's orbit; this requires putting the intercept on the opposite side of kerbol respective to my eve flyby. where I place the eve flyby, then, will determine where I can meet moho.

I have two options to reduce intercept speed. first, I can encounter eve when it's at the eve-moho planar change node. this way I can use eve's gravity to reduce orbital inclination compared to moho. reducing speed on the y axis will reduce overall intercept speed, i expect 200-300 m/s less.

Second option is to meet moho at apoapsis. at apoapsis orbital speed is lower, intercept speed is always lower for any rendez-vous when done at apoapsis. On the downside, meeting moho at apoapsis would require the highest plane change, especially coming from eve.

I probably have enough fuel to take a mildly suboptimal trajectory, but I ask anyway. Is it more convenient to use eve's flyby to match orbital plane, and meet moho halfway between apoapsis and periapsis, or is it more convenient to use eve to meet moho at apoapsis, while having the greatest planar difference?

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## Question

## king of nowhere

I am going to Moho and back with limited fuel, and I am using gravity assists to make things cheaper.

Shortly in the future I will have my last Kerbin flyby, which will send me on an Eve flyby, which will give the final correction for moho.

To have the lowest intercept speed, my final orbit must barely touch Moho's orbit; this requires putting the intercept on the opposite side of kerbol respective to my eve flyby. where I place the eve flyby, then, will determine where I can meet moho.

I have two options to reduce intercept speed. first, I can encounter eve when it's at the eve-moho planar change node. this way I can use eve's gravity to reduce orbital inclination compared to moho. reducing speed on the y axis will reduce overall intercept speed, i expect 200-300 m/s less.

Second option is to meet moho at apoapsis. at apoapsis orbital speed is lower, intercept speed is always lower for any rendez-vous when done at apoapsis. On the downside, meeting moho at apoapsis would require the highest plane change, especially coming from eve.

I probably have enough fuel to take a mildly suboptimal trajectory, but I ask anyway. Is it more convenient to use eve's flyby to match orbital plane, and meet moho halfway between apoapsis and periapsis, or is it more convenient to use eve to meet moho at apoapsis, while having the greatest planar difference?

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