egg changed the topic of #principia to: Logs: https://esper.irclog.whitequark.org/principia | <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
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<queqiao->
⟨YaBoiAnt⟩ rendezvous... HOW? I can easily in stock but with principia I cant figure out how to plot the maneuver and see closest approach and stuff like that
<queqiao->
⟨Marsh⟩ If you set your target using the principia window you open up a new frame related to your target, that once you get used to, actually makes rendezvous easier than in stock. The one thing principia makes easier lol
<queqiao->
⟨YaBoiAnt⟩ Ahh wow it is pretty easy... any tips on timing my launch?
<queqiao->
⟨Marsh⟩ You want to launch in the same plane as your target. Launch to a lower orbit to catch up or a higher orbit to let them catch you
<queqiao->
⟨nvv⟩ I just launch into plane with mj, and then depending on where the target is relative to me I adjusted the orbit I launch to
<queqiao->
⟨nvv⟩ takes a bit of time to catch up usually but it's simple
<queqiao->
⟨nvv⟩ +and straightforward
<queqiao->
⟨YaBoiAnt⟩ so first rendezvous with mercury probably not smart for my first time attempting? given the limited life support? how long should it be taking me to rendezvous once launched?
<queqiao->
⟨Marsh⟩ 24 hours or so
<queqiao->
⟨Ducky⟩ Not very long provided you nail the timing
<queqiao->
⟨Ducky⟩ You should intercept within 24 hours unless you make a huge mistake
<queqiao->
⟨Ducky⟩ Ideally you’ll do it within one orbit but that’ll take some good timing
<queqiao->
⟨Marsh⟩ Just do lots of sims. Once you get the hang of it it will be routine
<queqiao->
⟨Marsh⟩ Just remember that you have to get pretty close for it to count, something like 100 meters and 0.5m/s or something like that, so can’t go wizzing by
<queqiao->
⟨Marsh⟩ Having a craft that can translate with RCS will make it easier than using a main engine for tiny burns over and over
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<queqiao->
⟨Marsh⟩ If using “active engines” it will count those. You can avoid this by putting the Sep motors on the lower stage so they do not come along, or maybe switch to instant impulse and start the burn manually
<queqiao->
⟨test_account⟩ But what if these engines are for ullage 🤔
<queqiao->
⟨test_account⟩ Looks like a good reason not to use solid motors for ullage on orbital stages