Reference · Journey mode: transfers, launch windows and flip-and-burn trips
escapeBurnfunction
The burn that takes a craft from a circular parking orbit onto a path that leaves with a given speed at infinity, or, run the other way, that captures it into the same circular orbit: sqrt(v_inf^2 + 2 mu / r) - sqrt(mu / r).
Import it
import { escapeBurn } from "@johnmorrisdotca/uchusen-rockets/journey";Definition
function escapeBurn(muKm3s2: number, rKm: number, vInfKmS: number): numberParameters
| Name | Type | Description |
|---|---|---|
muKm3s2 | number | The body's gravitational parameter, km^3/s^2. |
rKm | number | The parking orbit's radius, km. |
vInfKmS | number | The speed relative to the body once far from it, km/s. |
Returns
number
The speed change, km/s.
Examples
import { escapeBurn } from "@johnmorrisdotca/uchusen-rockets/journey";
console.log(escapeBurn(398600.4418, 6378.137 + 185, 2.94).toFixed(2));3.61What it prints (run when this page was built)