Reference

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

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

Exports

Name	Kind	What it is
`ANDROMEDA_LY`	constant	Andromeda, light years, from `ANDROMEDA_PC`.
`ANDROMEDA_PC`	constant	Andromeda (M31), parsecs.
`astronomicalUnits`	function	A distance in astronomical units.
`AU_KM`	constant	One astronomical unit, kilometres.
`AU_M`	constant	One astronomical unit, metres (exact, IAU 2012).
`BallisticCraft`	type	A rocket that flies a Hohmann transfer: its published payloads and the spacecraft it carries.
`bestDate`	function	The departure date, for a craft that burns all the way, with the shortest trip in the next two years.
`BodySource`	type	Where the stops are, and what they are.
`burnTimer`	function	The timer before and during the braking burn: DECELERATION BURN IN until it starts, DECELERATION COMPLETE IN while it runs, nothing after.
`C`	constant	The speed of light, metres a second (exact, by definition of the metre).
`circularSpeed`	function	Speed of a circular orbit, kilometres a second.
`COAST_MAX_LY`	constant	The right end of the log line, light years: past Andromeda, so the galaxy sits inside the line.
`COAST_MIN_M`	constant	The left end of the log line: one light second, metres.
`coastPlace`	function	Where a distance sits on the log line, 0 at one light second and 1 at `COAST_MAX_LY`.
`ContinuousCraft`	type	A ship that burns all the way: constant acceleration, a turn round at the halfway point, the same acceleration to stop.
`Craft`	type	A craft the journey can fly: a rocket on a Hohmann transfer, or a ship that burns all the way.
`craftOf`	function	A craft by its id.
`CRAFTS`	constant	Every craft the journey offers: three real rockets and one ship of the SPX fleet.
`DAY_S`	constant	A day, seconds.
`duration`	function	A length of time, in the units that read best.
`escapeBurn`	function	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)`.
`flipAndBurn`	function	A trip of constant acceleration with a turn round in the middle: burn to the halfway point, coast while the craft turns end for end, burn the same acceleration to stop.
`G0`	constant	One standard gravity, metres a second squared (exact, by definition).
`GALACTIC_CENTRE_LY`	constant	Galactic centre, light years, from `GALACTIC_CENTRE_PC`.
`GALACTIC_CENTRE_PC`	constant	Galactic centre, parsecs.
`GM_KM3_S2`	constant	Gravitational parameters (GM), cubic kilometres a second squared.
`gWords`	function	An acceleration in g.
`hohmann`	function	The Hohmann transfer between two circular orbits about one body: its half-ellipse, its time and the two speed changes.
`ignition`	function	The ignition count: IGNITION IN 3, 2, 1, then 0 from lift-off, with how far round the ring dial has gone.
`kepler`	function	Kepler's equation `M = E - e sin E`, solved for the eccentric anomaly by Newton's method.
`keptGoing`	function	Distance and Earth time if a ship keeps proper acceleration `a` (m/s²) for `properS` seconds on board and never brakes, starting from rest.
`kilometres`	function	A distance in kilometres, with groups of three digits.
`lightTime`	function	The time light takes to cross a distance, in the unit that reads best.
`LY_M`	constant	A light year, metres.
`PARKING_ALTITUDE_KM`	constant	The height of the circular parking orbit round each kind of body, kilometres: 185 km above the Earth (Apollo's), 100 km above the Moon (Apollo's), 200 km above any other body.
`percentOfLight`	function	The share of the speed of light, with enough digits that it is never rounded up to 100: `99.999 999 99 %` for a speed a hair under c.
`PERIOD_DAYS`	constant	Sidereal orbital periods, days (NASA's planetary fact sheets, https://nssdc.gsfc.nasa.gov/planetary/factsheet/).
`Phase`	type	One stretch of a trip: its length in mission seconds (from lift-off, which is 0) and how long it takes on the screen at normal speed.
`Place`	type	Where in a trip a moment of playback is: the phase, how far through it, the mission time and how many mission seconds each screen second shows.
`placeAt`	function	Which phase a moment of playback is in, and the mission time it shows.
`planTrip`	function	Plans a trip: the transfer or the flip and burn, the burns, the times, and what the craft can and cannot do.
`playSeconds`	function	The total time the screen takes to play a trip at a speed.
`PlaySpeed`	type	How fast the screen plays: a multiple of normal speed.
`preheat`	function	The engine preheat bar before ignition: ten segments and a percent.
`PROXIMA_LY`	constant	Proxima Centauri, light years.
`Quantity`	type	A number with where it is from.
`speedWords`	function	A speed in metres a second as metres, kilometres or kilometres a second.
`Stage`	type	What of a rocket is still there at one point of a trip, drawn with the rocket's own parts: the whole rocket, or the slots that are left, of the rocket and variant named.
`stageOf`	function	What of a craft is left at a phase of its trip, to draw: the whole rocket until the ascent is over, the upper stage with its payload for the departure burn and the coast, and the payload alone from the turn round.
`State`	type	What is true of the craft at a moment: its place, speed, acceleration, the distances, the clocks, the signal time home and how far it has turned round.
`stateAt`	function	Everything true of the craft at a moment of playback: its place, speed, acceleration, the distances, the clocks and the signal time home.
`Stop`	type	A place a trip can start or end at: the Earth, the Moon or a planet, with what the arithmetic needs.
`synodicPeriod`	function	The time between two meetings of two bodies in circular orbits, from their periods: `1 / \|1/T1 - 1/T2\|`.
`tonnesWords`	function	A mass in tonnes.
`Trip`	type	A trip, planned: when it leaves, its phases, its verdict, its distances, its speed changes and what is true of the craft at the peak.
`Verdict`	type	What a craft can do on a trip, in one plain line, with the lines behind it.
`Window`	type	A day a ballistic craft can leave on, with the flight time and the two speed changes of the Sun's frame.
`windows`	function	The next dates a craft can leave one planet for another on a Hohmann transfer: the days on which the destination will be where the craft arrives.
`YEAR_S`	constant	A Julian year, seconds.

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