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Uchusen Rockets宇宙船

Rockets drawn from sourced sizes: line drawings and painted 3D views you drop into a page, take apart and turn round, and a typed model that checks whether a rocket really goes together.

Uchusen is the Japanese word 宇宙船 for spaceship. About the name

Contents

Reference · Journey mode: transfers, launch windows and flip-and-burn trips

keplerfunction

Kepler's equation M = E - e sin E, solved for the eccentric anomaly by Newton's method.

Import it

import { kepler } from "@johnmorrisdotca/uchusen-rockets/journey";

Definition

function kepler(meanAnomaly: number, e: number): number

Parameters

NameTypeDescription
meanAnomalynumber

The mean anomaly, radians.

enumber

The eccentricity, 0 to below 1.

Returns

number

The eccentric anomaly, radians, in the same turn as the mean anomaly.

Examples

import { kepler } from "@johnmorrisdotca/uchusen-rockets/journey";

console.log(kepler(1, 0.2).toFixed(4));
1.1853

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/uchusen-rockets 0.14.0.