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== What is PSIMU? ==
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Welcome to the <font color=#556B2F>'''PSIMU'''</font> wiki, a [https://cnes.fr/fr '''CNES'''] flight dynamics tool. As it is coded in <font color=#FF8C00>Java</font>, this product is available for any kind of platforms owning a <font color=#FF8C00 title="JavaVirtual Machine">JVM</font>.
  
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[[Fichier:TutorialsForV11.0.zip|Tutorials package]]
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== DESCRIPTION ==
  
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<font color=#556B2F>'''PSIMU'''</font> is a tool allowing to propagate trajectories around the Earth. These trajectories may be:
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[[What_is_Psimu|'''What is PSIMU?''']]
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* <font color=#FF0000>'''Elliptical'''</font> ones (all kind of orbits, from <font color=#FF8C00>LEO</font> to <font color=#FF8C00>GEO</font> passing through <font color=#FF8C00>MEO</font> or <font color=#FF8C00>HEO</font>),
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* <font color=#FF0000>'''Hyperbolic'''</font> ones,
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* <font color=#FF0000>'''Atmospheric'''</font> ones (in particular in case of debris reentries).
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<font color=#556B2F>'''PSIMU'''</font> is usable via three modes:
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::<font color=#556B2F>'''PSIMU'''</font> is a [https://cnes.fr/fr '''CNES'''] tool allowing to propagate trajectories around the Earth.
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* <font color=#FF8C00>GUI</font>: its utilization is made user-friendly thanks to a graphical user interface (developed using [[https://logiciels.cnes.fr/fr/node/76?type=desc GENIUS]] and [[https://logiciels.cnes.fr/en/node/78?type=desc GENOPUS]]),
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* Batch using a context file (in <font color=#FF8C00>XML</font> format),
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* Library via its <font color=#FF8C00>Java</font> interface.
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Its initialization is made by:
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[[Current_version|'''Current version''']]
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* The initial orbital parameters definition (epoch, frame, coordinates) with a great number of available options.
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* The vehicle modelling:
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:- Vehicle shapes (sphere, cylinder and parallelepiped) with or without solar panels,
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:- Dimensions or surfaces,
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:- Aerodynamic characteristics and/or radiative pressure ones,
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:- Propulsive characteristics (engines, tanks).
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* A maneuver sequence (optional) including impulsive maneuvers and/or continuous ones
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* A sequence of attitude laws (optional) ; indeed, if PSIMU does not manage 6 DDL motion, it owns as input data, attitude laws depending on orbital events, allowing to know at every moment the vehicle attitude and thus, to deduce from it the forces applied to the vehicle.
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* Numerical integrator parametrization (<font color=#FF8C00>Runge Kutta</font> or <font color=#FF8C00>Dormand Price</font>) with, for usual applications, by default settings.
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* Choice of force models within:
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:- Potential with several models available as the possibility to manage degree and order of zonal and tesseral terms,
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:- Other bodies attraction : Moon and Sun via analytical or numerical ephemeris,
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:- Atmospheric forces using different atmospheric models and their associated settings,
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:- Solar radiative pressure (direct or rediffused one)
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:- Oceanic and terrestrial tides
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<font color=#556B2F>'''PSIMU'''</font> also allows to set its output data within several tens of variables, the output frame and, of course, the output step. A graphical interface for plots is also integrated.
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::The current version is: <font color=#FF0000>'''V11.7.4'''</font>.
  
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== How to use it? ==
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[[Previous_versions|'''Previous versions''']]
  
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<font color=#556B2F>'''PSIMU'''</font> may be used very quickly via its <font color=#FF8C00>GUI</font> facilitating context elaboration and results exploitation. No code knowledge is necessary.
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::Describes evolutions thanks to previous versions.
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It is also possible to use it in batch mode via a shell and especially on grid computers with no display properties.
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On the other hand, it is also possible to use it via its <font color=#FF8C00>Java</font> interface inside a higher level tool (for example, an orbit determination tool or a maneuver optimization tool).
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== Current version ==
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== USE IT ==
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{| class="wikitable"
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|-
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|Version
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|11.0
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|Disponibility
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|13/07/2017
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|-
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|Javadoc     
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|yes
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|-
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|Dependencies
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|Java 1.6<br/> Patrius 3.2 (not compatible with other versions)<br/> Genopus 1.2.1<br/> Genius 1.6 or 1.6.1<br/> Miglayout 4.2<br/> Jdom 1.1.2<br/> Gettext-commons 0.9.8<br/> JFreeChart 1.0.19<br/> commons-io 2.4
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|}
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== Remarks ==
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[[Where_to_get_it|'''Where to get it?''']]
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* First Java version available only CNES internally (previous versions were coded in Fortran 95).
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* As it is coded in <font color=#FF8C00>Java</font>, this product is available for any kind of platforms owning <font color=#FF8C00>Java</font>. An executable jar (launching the <font color=#FF8C00>GUI</font>) including all dependencies is provided.
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* <font color=#556B2F>'''PSIMU'''</font> is provided as a Freeware under a CNES specific license. Java doc is accessible via this site.
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* Some tutorials are available in the tutorials package.
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== Previous versions ==
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::Where to download it.
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N/A
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== Java doc ==
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[[Quick start|'''Quick start''']]
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Not available now ...
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::First steps with <font color=#556B2F>'''PSIMU'''</font>
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[[User_Manual|'''User Manual''']]
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::<font color=#556B2F>'''PSIMU'''</font> may be used very quickly via its <font color=#FF8C00 title="Graphical User Interface">'''GUI'''</font> facilitating context elaboration and results exploitation. No code knowledge is necessary.
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::Anyway, it is also possible to use it in <font color=#FF8C00>'''batch'''</font> mode (especially on grid computers with no display properties) or using its <font color=#FF8C00>'''Java'''</font> interface.
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== DOCUMENTATION ==
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[[Java_Doc|'''Java Doc''']]
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::Access to current and old <font color=#FF8C00>Java</font> doc.
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[[Dependencies|'''Dependencies''']]
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::Describes dependencies with other products.
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[[News|'''News''']]
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::Main evolutions of the tool or its Wiki.

Version actuelle en date du 6 décembre 2023 à 11:53

Welcome to the PSIMU wiki, a CNES flight dynamics tool. As it is coded in Java, this product is available for any kind of platforms owning a JVM.

DESCRIPTION

What is PSIMU?

PSIMU is a CNES tool allowing to propagate trajectories around the Earth.

Current version

The current version is: V11.7.4.

Previous versions

Describes evolutions thanks to previous versions.

USE IT

Where to get it?

Where to download it.

Quick start

First steps with PSIMU

User Manual

PSIMU may be used very quickly via its GUI facilitating context elaboration and results exploitation. No code knowledge is necessary.
Anyway, it is also possible to use it in batch mode (especially on grid computers with no display properties) or using its Java interface.

DOCUMENTATION

Java Doc

Access to current and old Java doc.

Dependencies

Describes dependencies with other products.

News

Main evolutions of the tool or its Wiki.
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