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I found some of that on https://forum.kerbalspaceprogram.com/topic/161390-principia-challenge-munar-retrograde-rendezvous-122/ and I'm curious about where these numbers come from. I can solve Keplerian orbits only. The restricted 3-body problem is magic to me.

The flight plan can be seen as a perfectly maneuvered imaginary vessel. This vessel is always at where we should be. After an imperfect burn, we find ourselves not exactly there. In other words, our position and speed are different from the imaginary vessel. By doing corrections we go back to where we should be, or where the imaginary vessel is. We rendezvous with the imaginary vessel. If we set the target to the imaginary vessel, then the relative speed will be the same with delta-v. The Target sign on the navball, however, does not have a stock-game analog, which is in fact very useful.

Yesterday I started a new game with Principia. I tried to rendezvous two ships on low Mun orbit (Pe=Ap=15km) . Being new to Principia, I wasted a lot of fuel tweaking around and ended up finding that I had only 174m/s to go home. I found that if I put all of the delta-v into a prograde burn I would reach an unstable orbit, where there might be some ways to leave Mun. But I failed to find such ways. Do those ways exist? Is there a minimal delta-v for this transfer? If there really is one, then what is it?

Mockingbirdnest says that as principia is turned on or off the celestial bodies are likely to move quite a bit. If I use stock gravity, will I find myself going to the place where the celestial body is not here anymore?

So I should use stock-like gravity on celestial bodies and n-body gravity on the spacecraft? If the destination is one of the Joolian moons where n-body gravity on celestial bodies is necessary, what should I do?

What do you mean? Should I give up n-body and return to patched conics?

Thank you but I still have a few questions. How to turn on numerical propagation only for some celestial bodies? Does it affect accuracy to turn off some or all of that? Where does the number 10 come from?

Here https://livefile.xesimg.com/programme/python_assets/c79165d17bf063d3268aee2d56bfe753.mat I'm not sure if you can access this website. If you can see the image below, then you can access it.

Can MFMS simulate n-body gravity? I loaded bodies_StockPrincipia.ini and MFMS gave me a maneuver sequence(K-E-E-M). However, when I opened the result file in LVD it violated every constraint. The optimizer didn't help. It just couldn't lower the constraint violation. btw If MFMS uses stock-like patched conics then how can I get the maneuver sequence?

Hello, what's wrong with this, I didn't get the same result as the second tutorial. The UT of Final Spacecraft State was very different from the tutorial and Optimization didn't work. Here are configs of each event I noticed that in the tutorial KSPTOT v1.5.4 was used. Is there any difference in the algorithm?

Guess where they will rain the boosters

NO2 and Br2 are both brown so maybe a little bromine is there Edit: NO2 and Br2 are both oxidizer. N2O4 is used as OX with N2H4 or C2N2H8 as LF. It's a good place to collect rocket fuel isn't it

Its brown atmosphere and green surface make it look quite ugly from space.

O SCAN Hatch Scasette is the floaty bus kit simulator of Vall prime (mind)

I play Living Mice and Wet Hands the most Many ksp videos use Stellaris music while few use stock. Faster than Light is my favorite

It is very strange that Ore can be turned into both LF and OX without any mass losses. As LF and OX are unlikely to be composed of the same element(if so they will be called Mono instead) there must be some nuclear reactions in the converter. Well, I don't think it's a good idea to have pretty much Uranium, Thorium or Plutium on Minmus(then it will surely evaporate) so Originium can be a good choice as Originium and Ore have about the same density.

Launched a manned probe to Duna in Career mode in year 1. On the ship there are 8(9?) science modules: Goo, SC9001, 2HOT, PresMat, GRAVMAX, AtmoFluid and Magnet. (and EVA experiment, I wonder if it's considered a science module) With these I thought it could get a few thousand Science. The bottom stage was copied from Kerbal X, but only with 2/3 of the fuel and dV just enough for a low orbit. The middle stage had a Terrier and a FL-T 400, along with a lander can(it's the lightest)and all of the science modules except GRAVMAX. The top stage consisted of an Ant, two Oscar-B, a seat, an Experiment Storage Unit, an OX-STAT panel and a Z-100 battery, a reaction wheel, a MechJeb case(necessary for me) and a parachute, but without heat shields. Luckily when I finished the construction it was just at the transfer window, so I planned a Hofmann transfer at once. On the 150th day of the mission I did a deep space manoeuvre, and on the 323rd day it reached Duna SOI. Later it got into Duna's atmosphere near its south pole and aerobroke (for 12 times, its atmosphere is much thinner than I thought) into a round polar orbit with a height of 150k. I then got gravity scans and EVA reports from all of the biomes, both high space and low space. It took me a long time. After that I transferred to Ike, also on a polar orbit. Having collected science from all biomes, the middle stage still had 700 dV left, so I landed it near the equator(I didn't plan to do that so the ship didn't had landing legs, but with that reaction wheel I managed to land without legs) and then reached an orbit of 20k. At that time my poor Bob had got onto the seat, and the middle stage was already jettisoned. My small probe had 1700 dV then. I waited for a long time for the transfer window back to Kerbin. During the waiting that Halo Orbit satellite fell off and crashed on Mun but I didn't know. After another year the probe reached Kerbin. It aerobroke at 43k. As mentioned before, it didn't have a heat shield so Bob melted, but it didn't matter at all, right? As the experiment storage module landed in one piece, I call it a successful crash. Then I recovered it. To my surprise, it contained over 12000 science! That was enough to get all of the parts unlocked, with 2000 science left! Hearing this, the R&D forgot the evaporation of Bob at once. I forgot to take screenshots

This directs me to America! With this, as well as Better Time Warp, now my satellite won't fall off within plotting limit. Thank you very much!

Well, I do use Principia, and the thrust limiter is already reduced to 0.5%. The engine is Ant by the way.

I have put a satellite into the halo orbit around Kerbin-Mun L1, but it will never stay there for more than 15 days. The minimum thrust of the engine is about 0.5 Newton, which is very large for my 300 kg satellite. Therefore, the manoeuvre time is always 0.0 seconds, and it is difficult for me to cut it off at the right time. So I want to ask which point on such an orbit is the least sensitive. (It seems that pictures can't be successfully loaded on my browser, so please use texts to describe such a point.) Thank you. (Hope there are no grammatical errors)

Are there any other places to download KSPTOT besides Google Drive? Google Drive is not available in my country.

I am wondering why I cannot download GPP and the texture. GitHub seems unstable and slow(less than 50kb/s so that it will take me several hours to download), and my browser always says 'Connection timed out'. I'm in China.