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…
UmbralRaptor has quit [Quit: Bye]
UmbralRaptop has joined #principia
_whitelogger has joined #principia
<queqiao->
⟨Mayo⟩ so
<queqiao->
⟨Mayo⟩ i am planning my first interplanetary transfer
<queqiao->
⟨Mayo⟩ heading to venus
<queqiao->
⟨Mayo⟩ the phase angle is currently -47
<queqiao->
⟨Mayo⟩ i am launching to a 5.5 parking orbit and plan to compensate for it by expanding more delta on the TVI manouver
<queqiao->
⟨Mayo⟩ Which is the optimal ejection angle?
<queqiao->
⟨Mayo⟩ what is tollerance and what are steps omg
<queqiao->
⟨Mayo⟩ i cant plot it aaaa
<queqiao->
⟨test_account⟩ TWP helps
<queqiao->
⟨Soviet Onion⟩ ⟪Mayo⟫ what is tollerance and what are steps […] ⮪ Basically controls precision and accuracy of the predictions ?
<queqiao->
⟨Soviet Onion⟩ Also helps to read the documentation once _(:_
<queqiao->
⟨test_account⟩ basically don't think about cryptic numbers like phase angle, ejection angle, etc
<queqiao->
⟨test_account⟩ use TWP, launch to LAN given by TWP, try plotting the maneuver prograde, tune it, launch
<queqiao->
⟨Mayo⟩ THANK YOU
<queqiao->
⟨Mayo⟩ ok so
<queqiao->
⟨Mayo⟩ ⟪test_account⟫ use TWP, launch to LAN given by TWP, […] ⮪ should i target venus first
<queqiao->
⟨Mayo⟩ like target venus and select launch to lan
<queqiao->
⟨Mayo⟩ or launch to target lan?
<queqiao->
⟨Mayo⟩ what about inclination?
<queqiao->
⟨Nazfib⟩ TWP gives you the required inclination and LAN in the info at the bottom of the window. Put those into PVG.
<queqiao->
⟨Nazfib⟩ This doesn't necessarily look wrong, but the closest approach to Venus is not shown in this frame. Can you show your ejection burn in ECI, with TWP's "Show ejection angles" enabled? And then the sun-relative trajectory in the Venus-Sun-Orbit frame? BTW, TWP is not quite as accurate with Principia as in stock. That means that you probably have to fiddle around with your ejection burn to fine-tune the closest approach.
<queqiao->
⟨Mayo⟩ alright
<queqiao->
⟨Mayo⟩ oh i think i launched to the wrong parking orbit too!
<queqiao->
⟨Nazfib⟩ It seems like a decently close approach so far. Your planned ejection burn is around 7 m/s short and a minute late from what TWP suggests, maybe that will help. After that, you'll have to fiddle with the sliders, but you should be able to get a good flyby trajectory from this.
<queqiao->
⟨Mayo⟩ alright
<queqiao->
⟨Mayo⟩ i think i figured hhow TWP work
<queqiao->
⟨Mayo⟩ thank you
<queqiao->
⟨Mayo⟩ closest is 11 milion km
<queqiao->
⟨Mayo⟩ down to 1 milion
<queqiao->
⟨Mayo⟩ perfect,with a mid course manouver i am down to a close flyby
<queqiao->
⟨Nazfib⟩ Wonderful, congrats!
<queqiao->
⟨Mayo⟩ oh,alright engine failed to ignite lmfao
<queqiao->
⟨Mayo⟩ since its my first mission,for once i am about to reload it
<queqiao->
⟨Mayo⟩ this was too unlucky
<queqiao->
⟨Mayo⟩ failing a 98% roll is just too much
<queqiao->
⟨test_account⟩ Hence a good practice is build interplanetary probes in pairs
<queqiao->
⟨test_account⟩ If one fails, launch another. If the first one doesn't fail, find another target for the second one 🙂
<queqiao->
⟨test_account⟩ Hence a good practice is to build interplanetary probes in pairs
<queqiao->
⟨Mayo⟩ indeed,i should have done the same
<queqiao->
⟨Mayo⟩ i mean,pioneer 2 is also coming along,but ive started building it later due to some constrains
<queqiao->
⟨Mayo⟩ but its coming along
<queqiao->
⟨zephyr⟩ ⟪test_account⟫ If one fails, launch another. If the […] ⮪ Or turn it into an "atmospheric probe" for the same target
_whitelogger has joined #principia
<queqiao->
⟨gravShark⟩ what needs to happen for MJ's Execute Next Principia Node to work? I found a few times in my last play session that it just doesn't seem to even attempt it at all. It will change attitude to the node, but never warp and/or attempt to execute the manuever at the Flight Plan's stated ignition time.
<queqiao->
⟨Mayo⟩ it worked just fine for me
<queqiao->
⟨Mayo⟩ only thing it doesnt do is warping
<queqiao->
⟨gravShark⟩ Hmm. I noticed the warping thing, manually warped up but left Execute running, and it did not burn at T-0 as stated by the flight plan window
<queqiao->
⟨gravShark⟩ I'll have to mess around and see if I'm misremembering that, which is entirely possible.
<queqiao->
⟨Black Foxy - thanks everybody⟩ Is there some emm periodic I guess is the word orbit that would go moon-earth-moon-earth and so on