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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

MissionFiletype

What a mission's element file on the demo site holds (missions/<id>.json): for each craft, its name and a row of numbers for each element set Space-Track kept, in fields order.

Import it

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

Definition

interface MissionFile {
    id: string;
    retrieved: string;
    source: string;
    fields: readonly string[];
    objects: Record<string, {
        name: string;
        designator: string;
        rows: (string | number)[][];
    }>;
}

Members

NameTypeDescription
idstring
retrievedstring
sourcestring
fieldsreadonly string[]
objectsRecord<string, { name: string; designator: string; rows: (string | number)[][]; }>

By NORAD catalogue number.

Examples

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

const count = (file: MissionFile): number => Object.values(file.objects).reduce((sum, craft) => sum + craft.rows.length, 0);
console.log(count({ id: "sts-1", retrieved: "2026-11-08T12:18Z", source: "Space-Track.org (USSPACECOM)", fields: ["EPOCH"], objects: {} }));
0

What it prints (run when this page was built)

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