├── InitialiseJ2.m ├── J2Propagator.slx ├── LICENSE ├── README.md ├── RandomSatTLE.txt ├── earthSatSys_Ideal.WRL ├── keplerEq.m └── texture ├── Marble3.jpg ├── SolarPanel.jpg ├── Stars.gif └── world_physical_enhanced_giclee_lg.jpg /InitialiseJ2.m: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/nauaneed/OrbitPropagator/3a3fea6d72950142d48fc37de7df1fc9dc35d271/InitialiseJ2.m -------------------------------------------------------------------------------- /J2Propagator.slx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/nauaneed/OrbitPropagator/3a3fea6d72950142d48fc37de7df1fc9dc35d271/J2Propagator.slx -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published 637 | by the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # OrbitPropagator 2 | A Simple J2 propagator (with a VRML visualisation option) modeled in Simulink 3 | -------------------------------------------------------------------------------- /RandomSatTLE.txt: -------------------------------------------------------------------------------- 1 | RANDOM SAT 2 | 1 99999U 17212.27083333 -.00000681 00000-0 -73551-4 0 00002 3 | 2 99999 097.7872 145.0781 0010609 271.6166 088.3814 14.88384880000013 4 | -------------------------------------------------------------------------------- /earthSatSys_Ideal.WRL: -------------------------------------------------------------------------------- 1 | #VRML V2.0 utf8 2 | 3 | #Created with V-Realm Builder v2.0 4 | #Integrated Data Systems Inc. 5 | #www.ids-net.com 6 | 7 | 8 | SpotLight { 9 | location 0 36329 0 10 | radius 100 11 | } 12 | DEF Satellite Transform { 13 | scale 100 100 100 14 | children Transform { 15 | translation -0.0854189 0.0615436 0 16 | scale 0.001 0.001 0.001 17 | children Group { 18 | children [ 19 | Group { 20 | children DEF _04F287F8 Group { 21 | children [] 22 | } 23 | } 24 | 25 | Group { 26 | children DEF _04F28418 Group { 27 | children [] 28 | } 29 | } 30 | 31 | Group { 32 | children DEF _04F280B8 Group { 33 | children [] 34 | } 35 | } 36 | 37 | Group { 38 | children [ 39 | Group { 40 | children [ 41 | Shape { 42 | appearance Appearance { 43 | material DEF _material0 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