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https://github.com/Krafpy/KSP-MGA-Planner.git
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824af087c1
Modified the file structure to have the `index.html` at the root of the repository. Needed for Github Pages.
36 lines
1.4 KiB
JavaScript
36 lines
1.4 KiB
JavaScript
"use strict";
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function hohmannTransferDeltaV(depBody, arrBody) {
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const r1 = depBody.orbit.semiMajorAxis;
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const r2 = arrBody.orbit.semiMajorAxis;
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const depBodyVel = depBody.circularVel;
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const deltaV = depBodyVel * (Math.sqrt(2 * r2 / (r1 + r2)) - 1);
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return deltaV;
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}
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function hohmannInjectionDeltaV(depBody, arrBody, parkingOrbitRadius) {
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const depMu = depBody.stdGravParam;
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const dvHohmann = hohmannTransferDeltaV(depBody, arrBody);
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const depOrbitVel = circularVelocity(depBody, parkingOrbitRadius);
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const ejectVel = Math.sqrt(dvHohmann ** 2 + 2 * depMu / parkingOrbitRadius);
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return ejectVel - depOrbitVel;
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}
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function hohmannEncounterRelativeVel(depBody, arrBody, depVel, attractor) {
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const arrBodyVel = arrBody.circularVel;
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const mu = attractor.stdGravParam;
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const r1 = depBody.orbit.semiMajorAxis;
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const r2 = arrBody.orbit.semiMajorAxis;
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const encounterVel = Math.sqrt(mu * (2 / r2 - 2 / r1 + (depVel ** 2) / mu));
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const relativeArrVel = encounterVel - arrBodyVel;
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return relativeArrVel;
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}
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function getHohmannPeriod(body1, body2, attractor) {
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const orbit1 = body1.orbit;
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const orbit2 = body2.orbit;
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const { stdGravParam } = attractor;
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const a = (orbit1.semiMajorAxis + orbit2.semiMajorAxis) * 0.5;
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const period = calculateOrbitPeriod(a, stdGravParam);
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return period;
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}
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function calculateOrbitPeriod(a, mu) {
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return TWO_PI * Math.sqrt(a * a * a / mu);
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}
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