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ootk

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Orbital Object Toolkit including Multiple Propagators, Initial Orbit Determination, and Maneuver Calculations.

github.com/thkruz/ootk

thkruz/ootk

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/** * @author @thkruz Theodore Kruczek * @description Orbital Object ToolKit (ootk) is a collection of tools for working * with satellites and other orbital objects. * @license AGPL-3.0-or-later * @copyright (c) 2025 Kruczek Labs LLC * * Many of the classes are based off of the work of @david-rc-dayton and his * Pious Squid library (https://github.com/david-rc-dayton/pious_squid) which * is licensed under the MIT license. * * Orbital Object ToolKit is free software: you can redistribute it and/or modify it under the * terms of the GNU Affero General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later version. * * Orbital Object ToolKit is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License along with * Orbital Object ToolKit. If not, see <http://www.gnu.org/licenses/>. */ import { Iau1980Entry } from './Iau1980Data.js'; // / Array of the first 4 IAU-1980 coefficients. export const iau1980: Iau1980Entry[] = [ [0, 0, 0, 0, 1, -171996, -174.2, 92025, 8.9], [0, 0, 2, -2, 2, -13187, -1.6, 5736, -3.1], [0, 0, 2, 0, 2, -2274, -0.2, 977, -0.5], [0, 0, 0, 0, 2, 2062, 0.2, -895, 0.5], ];