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Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · Satellites: orbital elements in, positions out

SatelliteGroupInfotype

A group of satellites the demo offers as one button: what it is, in English and Japanese, and where its elements come from (a CelesTrak list name, or single catalogue numbers).

Import it

import type { SatelliteGroupInfo } from "@johnmorrisdotca/chikyu-earth/satellites";

Definition

interface SatelliteGroupInfo {
    id: string;
    label: string;
    labelJa: string;
    about: string;
    aboutJa: string;
    orbit: OrbitKind;
    still: boolean;
    celestrak?: string;
    catnr?: readonly number[];
}

Members

NameTypeDescription
idstring

A short name for an address or a button, lower case with hyphens.

labelstring
labelJastring
aboutstring

A line on what the group is.

aboutJastring
orbitOrbitKind
stillboolean

True when the satellites of this group sit still over one place (geostationary), so a reader is not surprised that they do not move.

celestrak (optional)string | undefined

The name of the CelesTrak list (GROUP= in its address) that holds the group, when there is one.

catnr (optional)readonly number[] | undefined

Single NORAD catalogue numbers to ask for one by one, when the group has no list of its own.

Examples

import { SATELLITE_GROUPS } from "@johnmorrisdotca/chikyu-earth/satellites";

const gps = SATELLITE_GROUPS.find((group) => group.id === "gps");
console.log(gps?.celestrak, gps?.orbit);
gps-ops meo

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.