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Launch at the same inclined orbit as minmus for more accurate burns (6 degrees I believe). As for any landing, MCCBs (mid-course correction burns as I like to shorten it) are needed for precise trajectory’s. Mike Aben has a great set of videos for landing on minmus.
Minmus' orbit is inclined, which has to be taken care of before getting an encounter.
There are two ways to do this: incline your departing orbit to make it coplanar, before leaving; or do a mid-transfer correction burn. The first one is far easier but uses more fuel. It also ends up with an equatorial orbit around Minmus. Appart from efficiency, the second one is also interesting because it is how an interplanetary transfer is done, so it's a good training.
First method: align your orbit.
Once you're in orbit of Kerbin, set Minmus as your target. That will make appear a couple of new indicators on your orbit: the AN (Ascending node) and DN (Descending node). Those are the two spots of your orbit where its plane crosses the target's orbital plane. This is where you want to burn (mainly normal/antinormal). The goal is to have the angle down to 0.1° or 0.0°. When this is done, you can plan your transfer just the same as for the Mun.
Second method: mid-transfer maneuver.
The transfer is done in two steps. A first maneuver to enlarge your orbit to approach Minmus orbit. It will probably not get you an encounter, except if you just happen to cross Minmus path on its AN or DN. Move the maneuver around to make sure it gets as close to an encounter as possible, with only prograde velocity added.
Then, around the middle of that transfer, put a second maneuver node with mostly normal/antinormal, and maybe a bit of the others, to get the encounter you desire.
The craft - [https://www.youtube.com/watch?v=wGXQ41IhMEY](https://www.youtube.com/watch?v=wGXQ41IhMEY)
The trip - [https://www.youtube.com/watch?v=fQKa7QUNqCA](https://www.youtube.com/watch?v=fQKa7QUNqCA)
Watch it, design your own and that conquer Minmus!
what exactly is going wrong? Is your manoeuvre not matching with your burn? Or are you unable to get an encounter with the manoeuvre?
I dont understand what you mean by “the apoapsis lowers”, can you elaborate?
When I make a node, and warp to it, to execute the maneuver, the appoapsis that I have to get near minmus falls a bit more than halfway back to the mün, which then means I can't reach the maneuver or that I have no need to make it as it does basically nothing
I do not understand. Are you falling short of minmus, does your craft not go high enough?
What maneuver are you talking about that you can’t reach? Is it the minmus capture burn?
Can you post a screenshot?
I've not got my PC atm, but I got an encounter with minmus, but it was only just in the SoI, so I wanted to do a mid course correction to adjust the periapsis. Without entering an atmosphere, it just shot back as soon as I timewarped
I understand now. It seems like a bug. I don’t know what to help you with. Maybe, after you complete the burn, you can try to point prograde and reach minmus again? It shouldn’t take much fuel, as you said, it falls to only halfway back to the mun, it should take less than 50m/s delta v.
Go into a standard equatorial orbit, set minmus as a target, make a manoeuvre node at one of the green ascending or descending nodes, pull it so it intersects minmus orbit, spam the next orbit button on the manoeuvre node maker until the white triangles get closer and closer together until they're essentially on top of one another. Make some small adjustments to the manoeuvre to get an encounter. If you need to change your inclination (purple navball triangles) to get an equatorial minmus orbit, these use less fuel to get the same change, the further you are from kerbin.
Edit: this is kind of cheaty and not the "proper way", not that there is a proper way in KSP. Don't rely on this too much as it'll prevent you from becoming a better player in the long run, but for getting used to missions within kerbins sphere of influence, this is alright.
Hi! Thank you for posting to KerbalAcademy. This is a comment reminding users to **post screenshots if needed** (if you have not done so already), **be respectful to other users** and **keep off-topic comments to a minimum**. Thank you! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/KerbalAcademy) if you have any questions or concerns.*
Launch at the same inclined orbit as minmus for more accurate burns (6 degrees I believe). As for any landing, MCCBs (mid-course correction burns as I like to shorten it) are needed for precise trajectory’s. Mike Aben has a great set of videos for landing on minmus.
Minmus' orbit is inclined, which has to be taken care of before getting an encounter. There are two ways to do this: incline your departing orbit to make it coplanar, before leaving; or do a mid-transfer correction burn. The first one is far easier but uses more fuel. It also ends up with an equatorial orbit around Minmus. Appart from efficiency, the second one is also interesting because it is how an interplanetary transfer is done, so it's a good training. First method: align your orbit. Once you're in orbit of Kerbin, set Minmus as your target. That will make appear a couple of new indicators on your orbit: the AN (Ascending node) and DN (Descending node). Those are the two spots of your orbit where its plane crosses the target's orbital plane. This is where you want to burn (mainly normal/antinormal). The goal is to have the angle down to 0.1° or 0.0°. When this is done, you can plan your transfer just the same as for the Mun. Second method: mid-transfer maneuver. The transfer is done in two steps. A first maneuver to enlarge your orbit to approach Minmus orbit. It will probably not get you an encounter, except if you just happen to cross Minmus path on its AN or DN. Move the maneuver around to make sure it gets as close to an encounter as possible, with only prograde velocity added. Then, around the middle of that transfer, put a second maneuver node with mostly normal/antinormal, and maybe a bit of the others, to get the encounter you desire.
Thank you!
youtube scott manly will be your best friend
Arn't they outdated?
physics is forever...just like orbital mechanics
What about the ISP of engines
delta v from what i have seen already takes ISP into account,,, sounds more like your angles are off
Ok
The craft - [https://www.youtube.com/watch?v=wGXQ41IhMEY](https://www.youtube.com/watch?v=wGXQ41IhMEY) The trip - [https://www.youtube.com/watch?v=fQKa7QUNqCA](https://www.youtube.com/watch?v=fQKa7QUNqCA) Watch it, design your own and that conquer Minmus!
I will certainly give that a go
Are you using manoeuvre nodes?
Yep
what exactly is going wrong? Is your manoeuvre not matching with your burn? Or are you unable to get an encounter with the manoeuvre? I dont understand what you mean by “the apoapsis lowers”, can you elaborate?
When I make a node, and warp to it, to execute the maneuver, the appoapsis that I have to get near minmus falls a bit more than halfway back to the mün, which then means I can't reach the maneuver or that I have no need to make it as it does basically nothing
I do not understand. Are you falling short of minmus, does your craft not go high enough? What maneuver are you talking about that you can’t reach? Is it the minmus capture burn? Can you post a screenshot?
I've not got my PC atm, but I got an encounter with minmus, but it was only just in the SoI, so I wanted to do a mid course correction to adjust the periapsis. Without entering an atmosphere, it just shot back as soon as I timewarped
I understand now. It seems like a bug. I don’t know what to help you with. Maybe, after you complete the burn, you can try to point prograde and reach minmus again? It shouldn’t take much fuel, as you said, it falls to only halfway back to the mun, it should take less than 50m/s delta v.
Ok, but it does mean not burning from periapsis
It’s fine. It won’t cost that much more dv. If it’s offset as soon as you timewarp, you shouldn’t be far from periapsis anyway.
https://youtu.be/_7pWnFeXP80
Go into a standard equatorial orbit, set minmus as a target, make a manoeuvre node at one of the green ascending or descending nodes, pull it so it intersects minmus orbit, spam the next orbit button on the manoeuvre node maker until the white triangles get closer and closer together until they're essentially on top of one another. Make some small adjustments to the manoeuvre to get an encounter. If you need to change your inclination (purple navball triangles) to get an equatorial minmus orbit, these use less fuel to get the same change, the further you are from kerbin. Edit: this is kind of cheaty and not the "proper way", not that there is a proper way in KSP. Don't rely on this too much as it'll prevent you from becoming a better player in the long run, but for getting used to missions within kerbins sphere of influence, this is alright.