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-> ⟨n9gaming⟩ Haven't played with Principia for about a year now, and I just have to say the recent updates and additions are awesome, thanks for all the time and work invested it's very appreciated ♥
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<queqiao-> ⟨jasman3764⟩ My Principia and MechJeb don't seem to like each other. See image - time to Apoapsis
<queqiao-> ⟨jasman3764⟩ According to Principia, Apo in 2 mins. Mechjeb says 42 mins. Principia is right, but why?
<queqiao-> ⟨egg⟩ Because the earth is not spherical, and MJ assumes it is.
<queqiao-> ⟨egg⟩ Just use the information given by the Principia orbit analyser instead of the stock or MJ osculating elements.
<_whitenotifier-15aa> [Principia] pleroy opened pull request #3748: Add a copy constructor for the FlightPlan and use it in Vessel - https://github.com/mockingbirdnest/Principia/pull/3748
<queqiao-> ⟨jasman3764⟩ ⟪egg⟫ Just use the information given by the […] ⮪ What do you do when you want to see what your Periapsis is in the atmosphere. For example, for a capsule descent I want to get the Peri to 70km. How do I do this with Pricipia?
<_whitenotifier-15aa> [Principia] pleroy closed pull request #3748: Add a copy constructor for the FlightPlan and use it in Vessel - https://github.com/mockingbirdnest/Principia/pull/3748
<_whitenotifier-15aa> [Principia] StarshipSN20 opened pull request #3749: Update on sol_initial_state_jd_2433282_500000000.cfg - https://github.com/mockingbirdnest/Principia/pull/3749
<_whitenotifier-15aa> [Principia] eggrobin commented on pull request #3749: Update on sol_initial_state_jd_2433282_500000000.cfg - https://github.com/mockingbirdnest/Principia/pull/3749#issuecomment-1694338688
<queqiao-> ⟨egg⟩ Daedalus replying to your earlier question here now that I can see the numbers: you are indeed using the wrong settings. Further, even if you were using the right settings, changing the initial positions and velocities must be done with great care; that change may need to be coupled with changes to the gravitational parameters to get a consistent model. Since there does not appear to be an actual practical problem with the data we...
<queqiao-> ... have, I don’t think it needs to be fixed.
<queqiao-> ⟨egg⟩ (also, it’s not a good idea to delete your question two days later, that makes it really confusing to follow the discussion.)
<queqiao-> ⟨egg⟩ Also, please don’t delete your question a day after posting it here, that makes the conversation really confusing to follow.
<_whitenotifier-15aa> [Principia] StarshipSN20 closed pull request #3749: Update on sol_initial_state_jd_2433282_500000000.cfg - https://github.com/mockingbirdnest/Principia/pull/3749
<queqiao-> ⟨Daedalus⟩ I see. Thanks for pointing out the mistakes I've made
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<_whitenotifier-15aa> [Principia] pleroy opened pull request #3750: An asynchronous driver for flight plan optimization - https://github.com/mockingbirdnest/Principia/pull/3750
<_whitenotifier-15aa> [Principia] pleroy closed pull request #3750: An asynchronous driver for flight plan optimization - https://github.com/mockingbirdnest/Principia/pull/3750
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