Free nasa software for linux

AspectES is an implementation of Aspect-Oriented Programming in JavaScript 1.5, as standardized by EcmaScript Specification 262.
AspectES project contains core classes that enable software engineers to gracefully develop JavaScript applications that have clear, well-documented designs that incorporate Aspect Oriented Programming.
This project only uses standardized Web technologies: JavaScript 1.5, with no proprietary extensions. The framework is documented with JavaScriptdoc.
Mission:
Produce a superior implementation of Aspect-Oriented Programming in JavaScript v1.5, as standardized by EcmaScript Specification 262.
Scope: A package framework that contains core classes that enable software engineers to gracefully develop JavaScript applications that have clear, well-documented designs incorporating Aspect Oriented Programming.
Agenda:
Current:
- This framework powers the drag-and-drop capability in the (open-source) Gigapan Explorer Application, delivered to the United States NASA in late 2005.
- This project only uses standardized web technologies: JavaScript 1.5, with no proprietary extensions.
- Enjoy complete JavaScriptdoc as you develop this codebase.
- See the Coding Standard.
- See the tips on Debugging JavaScript.
Immediate Future:
- Develop a test suite that completely exercises the existing functionality.
- Log and fix bugs on said functionality.
- Identify additional desired functionality.
- Build a pluggable module for generating JavaScriptdoc from AspectES aspects and their associated yarn.
Enhancements:
- This version is now contained in its own tigris.org project, separate from the Gigapan Explorer application for which it was originally developed.

WMS Javascript Library is an object-oriented JavaScript library for creating dynamic Web-based maps from otherwise static WMS (Web Map Service) images by adding pan/zoom functionality with Google Maps-like draggability.
Custom clickable overlays can be added to create a useful GIS.
WMS Javascript Librarys wmsmap.js purpose is to facilitate the creation of dynamics maps using freely available WMS servers. For example to create the dynamic equivalent of the image above, include the javascript files, define the Layer object, create a new map object, and associate it with an html DIV element.
// define layer object
var myLayer = {
URL: http://wms.jpl.nasa.gov/wms.cgi?,
LAYERS: [BMNG],
FORMAT: image/jpeg,
BBOX: [0,0,180,90]
};
// create new map object with layer
var myMap = new WMap(map_div,[myLayer]);
Enhancements:
- This release fixes IE bugs and improves the documentation and example layout.

Marble is an early beta preview of the Marble Widget application which is targeted for KDE 4.
You need to install both packages: "marble" and "marble-data" to run Marble.
Marble is a generic geographical map widget that is meant to be used by KDE4 applications. It shows the earth as a sphere but doesnt make use of any hardware acceleration (No OpenGL). So although it might look similar to professional applications like Google Earth or Nasa World Wind its rather meant to be a small light weight multi purpose widget. To improve speed I decided to compile the Kubuntu packages with SSE support (-msse).
Main features:
- Marble uses a minimal free dataset that can be used offline. Currently the total amount of data that is meant to be shipped is about 5 MB.
- Marble doesnt use OpenGL or 3D hardware acceleration. It just uses Arthur as a painting backend. Extending it later on to support OpenGL as well shouldnt be hard however I dont consider that the primary focus. Depending on your hardware and the maps being displayed framerate is approximately 5-20 fps.
- Marble uses vector as well as bitmap data: Currently it uses the very old MWDB II data combined with ETOPO 2, which I will update to current SRTM soon.
- Marble displays the world map as a 3D sphere, because its more fun to use and less subject to distortion (So with regard to that its just like NASA WorldWind, Earth3D and Google Earth)
- Marble should start up almost instantly. Currently it "cold" starts fully within 2-5 seconds. On each subsequent start it takes about one second.
- Uses KML-Import to display places (Google Earths open format to store placemarks)
- Cities Down to 12000 inhabitants that you can click on using the mouse. Highest Mountains of each continent. Automatic Placemark label placement.
- Different Map Themes, Layers
- Dynamic Coordinate Grid
- Measure Tool
- Basic Wikipedia integration

Cenon project is a graphical tool of a special kind. Build upon a modular graphical core, Cenon offers a wide variety of possibilities and applications.
The best of all, Cenon is free software, available with full source codes, and at home on many computer platforms.
Cenon has been developed with love. The clean user interface under Apple, Linux or other systems (using GNUstep) creates a pleasant user experience.
Desktop Publishing
- The field of desktop publishing is a new speciality of Cenon. Freeing images, complex paths, text functions, color shading, printing, and a multitude of import- and export abilities - simply good.
Vector Graphics Conversion
- Cenon owns an enormous range of Import- and Export possibilities. This allows the conversion of all supported graphic formats in any other format. The editability of imported data is fully guarantied. Conversion of the formats PostScript, PDF, DXF, HPGL, Gerber, DIN formats and other formats are solid part of the Import- and Export libraries of Cenon.
Astrology (Free Module)
- Even an Astrology module is available for Cenon. It turns Cenon into an Astrology program with some unusual highlights. The Module uses the high precision NASA ephemeris data based on the Swiss Ephemeris. It allows the creation of Astrological Charts and Composite Charts in exceptional graphical precision. Furthermore, astrological Geographic Maps can be created.
CAM (commercial Module)
- With this additional module, Cenon becomes a production tool for 2 and 2.5 dimensional applications. Thats how Cenon started in 1993, and thats the field where Cenon has achieved a strong market position. The production tool Cenon is available from vhf camfacture. vhf camfacture also offers the appropriate machines from very small to very big.
PCB-Prototyping (CAM Module)
- The CAM module allows the production of PCB prototypes by engraving the isolations. Cenon supports all necessary algorithms like calculation of isolation tracks, Blow-Up, Rub-Out and more, to get high quality PCB prototypes from your machine.
Main features:
Import
- Import of DXF, HPGL, PostScript (PS and EPS), Adobe Illustrator 3, Gerber, PDF, Sieb&Meyer, Wessel, Excellon
- Import of images (TIFF, GIF, JPG etc.)
- Import of Type-1 Fonts
- option: automatic distribution of colors to layers
- option: automatic joining of paths
- Import of text lists in ASCII format for mass production
Graphic- and Editing functions
- Lines, Arcs, Rectangles, Bezier curves, etc.
- complex paths
- object manipulations like join, punch etc.
- Rich Text (vector fonts, tabulators, rotation, ...)
- Text along paths
- Graphic Inspector
- comfortable layer (page) management
- alignment of graphic objects
- multiple Undo and Redo
DTP
- Exposing of images (Clipping)
- Color shading (Graduate, Radial, Axial)
- Thumbnail images
- Color separation
Output
- Export of DXF, HPGL, PostScript (EPS + PS), Gerber, etc.
Special features
- Vectorisation of images
- creating the contour of graphic objects
- Mix function
- Batch production
- Serial numbers

VULCAN project provides computational fluid dynamics analysis.
VULCAN (Viscous Upwind aLgorithm for Complex flow ANalysis) offers computational fluid dynamics for subsonic speed through hypersonic turbulent reacting and non-reacting flows on a variety of serial and parallel computational platforms.
The computational cost of propulsion flow analysis is reduced through the use of special turbulent wall treatments, multi-grid methods for elliptic and space marching schemes, and conditioning of the governing equations to reduce numerical stiffness.
Physical modeling capabilities are improved through the inclusion of models for compressibility, Reynolds stress anisotropies, turbulent diffusivity, finite rate chemistry, and turbulence/chemistry interaction effects.
VULCAN can simulate two-dimensional, three-dimensional, or axi-symmetric multi-block problems.
Enhancements:
- This release adds logic to force the correct asymptotic behavior of the turbulence kinetic energy and the turbulence frequency (omega) for surface cell y+ values that are below the log layer portion of the boundary layer.
- It adds the output of reference stagnation conditions and dynamic pressure.
- There are numerous bugfixes, code cleanups, and fixes for setting initial conditions.
- There are minor GUI enhancements.

Valgrind is an award-winning suite of tools for debugging and profiling Linux programs. With the tools that come with Valgrind, you can automatically detect many memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. You can also perform detailed profiling, to speed up and reduce memory use of your programs.
Valgrind distribution currently includes three tools: a memory error detectors, a cache (time) profiler and a heap (space) profiler.
Valgrind is Open Source / Free Software, and is freely available under the GNU General Public License.
Main features:
- Valgrind will save you hours of debugging time. With Valgrind tools you can automatically detect many memory management and threading bugs. This gives you confidence that your programs are free of many common bugs, some of which would take hours to find manually, or never be found at all. You can find and eliminate bugs before they become a problem.
- Valgrind can help you speed up your programs. With Valgrind tools you can also perform very detailed profiling to help speed up your programs.
- Valgrind is free. Free-as-in-speech: you can download it, read the source code, make modifications, and pass them on, all within the limits of the GNU GPL. And free-as-in-beer: we arent charging for it.
- Valgrind runs on x86/Linux, AMD64/Linux and PPC32/Linux, several of the most popular platforms in use. Valgrind works with all the major Linux distributions, including Red Hat, SuSE, Debian, Gentoo, Slackware, Mandrake, etc.
- Valgrind is easy to use. Valgrind uses dynamic binary translation, so you dont need to modify, recompile or relink your applications. Just prefix your command line with valgrind and everything works.
- Valgrind is not a toy. Valgrind is first and foremost a debugging and profiling system for large, complex programs. We have had feedback from users working on projects with up to 25 million lines of code. It has been used on projects of all sizes, from single-user personal projects, to projects with hundreds of programmers.
- Valgrind is suitable for any type of software. Valgrind has been used on almost every kind of software imaginable: desktop applications, libraries, databases, games, web browsers, network servers, distributed control systems, virtual reality frameworks, transaction servers, compilers, interpreters, virtual machines, telecom applications, embedded software, medical imaging, scientific programming, signal processing, video/audio programs, NASA Mars lander vision and rover navigation systems, business intelligence software, financial/banking software, operating system daemons, etc, etc. See a list of projects using Valgrind.
- Valgrind is widely used. Valgrind has been used by thousands of programmers across the world. We have received feedback from users in over 25 countries, including: Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, The Netherlands, Norway, Poland, Portugal, Russia, Sweden, Switzerland, UK, Argentina, Brazil, Canada, USA, Australia, India, Japan, New Zealand, Singapore, South Africa and Israel.
- Valgrind works with programs written in any language. Because Valgrind works directly with program binaries, it works with programs written in any programming language, be they compiled, just-in-time compiled, or interpreted. The Valgrind tools are largely aimed at programs written in C and C++, because programs written in these languages tend to have the most bugs! But it can, for example, be used to debug and profile systems written in a mixture of languages. Valgrind has been used on programs written partly or entirely in C, C++, Java, Perl, Python, assembly code, Fortran, Ada, and many others.
- Valgrind debugs and profiles your entire program. Unlike tools that require a recompilation step, Valgrind gives you total debugging and profiling coverage of every instruction executed by your program, even within system libraries. You can even use Valgrind on programs for which you dont have the source code.
- Valgrind can be used with other tools. Valgrind can start GDB and attach it to your program at the point(s) where errors are detected, so that you can poke around and figure out what was going on at the time.
- Valgrind is extensible. Valgrind consists of the Valgrind core, which provides a synthetic software CPU, and Valgrind tools, which plug into the core, and instrument and analyse the running program. Anyone can write powerful new tools that add arbitrary instrumentation to programs. This is much easier than writing such tools from scratch. This makes Valgrind ideal for experimenting with new kinds of debuggers, profilers, and similar tools.
- Valgrind is actively maintained. The Valgrind developers are constantly working to fix bugs, improve Valgrind, and ensure it works as new Linux distributions and libraries come out. There are also mailing lists you can subscribe to, and contact if youre having problems.
- So whats the catch? The main one is that programs run significantly more slowly under Valgrind. Depending on which tool you use, the slowdown factor can range from 5--100. This slowdown is similar to that of similar debugging and profiling tools. But since you dont have to use Valgrind all the time, this usually isnt too much of a problem. The hours youll save debugging will more than make up for it.
Enhancements:
- 3.2.3 is almost identical to 3.2.2, but fixes a regression that unfortunately crept into 3.2.2. The regression causes an assertion failure in Valgrind when running certain obscure SSE code fragments on x86-linux and amd64-linux. Please do not use (or package) 3.2.2; instead use 3.2.3.

ORSA RendezvousWithVesta is a graphical software tool developed by Pasquale Tricarico at the Planetary Science Institute, in support to the NASA DAWN mission. The project allows to accurately simulate the dynamics of a spacecraft orbiting the asteroid (4) Vesta. The motivations for developing this tool are:
- understand how the physical parameters of Vesta affect the stability of low polar orbits;
- understand how the physical parameters of Vesta and the orbital elements of DAWN affect the coverage of Vestas surface;
- provide a fast and reliable tool for the generation of orbits suitable for input in the Science Opportunity Analyzer (SOA) tool;
Main features:
- validated numerical algorithms, tested on NEAR mission data, and capable of - accurately reproducing NEARs orbit around Eros;
- complete control over Vestas physical properties: mass, mass distribution model, shape model, rotation period, and pole ecliptic latitude and longitude;
- control over DAWNs initial orbit around Vesta: epoch, radius, equatorial (Vestas equator) inclination, phase angle;
- export simulations as SPICE kernel files and as ASCII data files;
- 3D graphical visualization of the numerical simulation, including the ground tracking of DAWN over Vestas surface;
- 2D plot of the altitude of the spacecraft and of the Vesta profile at nadir;
completely open source and part of the ORSA framework;
- support for all major platforms: Linux, Mac OS X, Windows;
The output files generated are:
a SPICE SPK kernel describing the orbit of DAWN around Vesta,
a formatted ASCII data file containing information about DAWNs orbit, phase angle, and equatorial coordinates with respect to Vesta; see the header of the file for more details.

The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. Source code for the entire project is available and licensed under the GNU General Public License.

The goal of the FlightGear project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application. We are developing a sophisticated, open simulation framework that can be expanded and improved upon by anyone interested in contributing.

There are many exciting possibilities for an open, free flight sim. We hope that this project will be interesting and useful to many people in many areas.

FlightGear is a free flight simulator project. It is being developed through the gracious contributions of source code and spare time by many talented people from around the globe. Among the many goals of this project are the quest to minimize short cuts and "do things right", the quest to learn and advance knowledge, and the quest to have better toys to play with.

The idea for Flight Gear was born out of a dissatisfaction with current commercial PC flight simulators. A big problem with these simulators is their proprietariness and lack of extensibility. There are so many people across the world with great ideas for enhancing the currently available simulators who have the ability to write code, and who have a desire to learn and contribute. Many people involved in education and research could use a spiffy flight simulator frame work on which to build their own projects; however, commercial simulators do not lend themselves to modification and enhancement. The Flight Gear project is striving to fill these gaps.

There are a wide range of people interested and participating in this project. This is truly a global effort with contributors from just about every continent. Interests range from building a realistic home simulator out old airplane parts, to university research and instructional use, to simply having a viable alternative to commercial PC simulators.

Flight Dynamics Models

With FlightGear it is possible to choose between three primary Flight Dynamics Models. It is possible to add new dynamics models or even interface to external "proprietary" flight dynamics models:

1. JSBSim: JSBSim is a generic, 6DoF flight dynamics model for simulating the motion of flight vehicles. It is written in C++. JSBSim can be run in a standalone mode for batch runs, or it can be the driver for a larger simulation program that includes a visuals subsystem (such as FlightGear.) In both cases, aircraft are modeled in an XML configuration file, where the mass properties, aerodynamic and flight control properties are all defined.

2. YASim: This FDM is an integrated part of FlightGear and uses a different approach than JSBSim by simulating the effect of the airflow on the different parts of an aircraft. The advantage of this approach is that it is possible to perform the simulation based on geometry and mass information combined with more commonly available performance numbers for an aircraft. This allows for quickly constructing a plausibly behaving aircraft that matches published performance numbers without requiring all the traditional aerodynamic test data.

3. UIUC: This FDM is based on LaRCsim originally written by the NASA. UIUC extends the code by allowing aircraft configuration files instead and by adding code for simulation of aircraft under icing conditions.

UIUC (like JSBSim) uses lookup tables to retrieve the component aerodynamic force and moment coefficients for an aircraft... and then uses these coefficients to calculate the sum of the forces and moments acting on the aircraft.

Extensive and Accurate World Scenery Data Base

Over 20,000 real world airports included in the full scenery set.
Correct runway markings and placement, correct runway and approach lighting.
Taxiways available for many larger airports (even including the green center line lights when appropriate.)
Sloping runways (runways change elevation like they usually do in real life.)
Directional airport lighting that smoothly changes intensity as your relative view direction changes.
World scenery fits on 3 DVDs. (Im not sure thats a feature or a problem!) But it means we have pretty detailed coverage of the entire world.
Accurate terrain worldwide, based on the most recently released SRTM terrain data.) 3 arc second resolution (about 90m post spacing) for North and South America, Europe, Asia, Africa, and Australia.
Scenery includes all vmap0 lakes, rivers, roads, railroads, cities, towns, land cover, etc.
Nice scenery night lighting with ground lighting concentrated in urban areas (based on real maps) and headlights visible on major highways. This allows for realistic night VFR flying with the ability to spot towns and cities and follow roads.
Scenery tiles are paged (loaded/unloaded) in a separate thread to minimize the frame rate hit when you need to load new areas.

Accurate and Detailed Sky Model

FlightGear implements extremely accurate time of day modeling with correctly placed sun, moon, stars, and planets for the specified time and date. FlightGear can track the current computer clock time in order to correctly place the sun, moon, stars, etc. in their current and proper place relative to the earth. If its dawn in Sydney right now, its dawn in the sim right now when you locate yourself in virtual Sidney. The sun, moon, stars, and planets all follow their correct courses through the sky. This modeling also correctly takes into account seasonal effects so you have 24 hour days north of the arctic circle in the summer, etc. We also illuminate the correctly placed moon with the correctly placed sun to get the correct phase of the moon for the current time/date, just like in real life.

Flexible and Open Aircraft Modeling System

FlightGear has the ability to model a wide variety of aircraft. Currently you can fly the 1903 Wright Flyer, strange flapping wing "ornithopters", a 747 and A320, various military jets, and several light singles. FlightGear has the ability to model those aircraft and just about everything in between.

FlightGear has extremely smooth and fluid instrument animation that updates at the same rate as your out-the-window view updates (i.e. as fast as your computer can crank, and not artificially limited and chunky like in some sims.)

FlightGear has the infrastructure to allow aircraft designers to build fully animated, fully operational, fully interactive 3d cockpits (which even update and display correctly from external chase plane views.)

FlightGear realistically models real world instrument behavior. Instruments that lag in real life, lag correctly in FlightGear, gyro drift is modeled correctly, the magnetic compass is subject to aircraft body forces -- all those things that make real world flying a challenge.

FlightGear also accurately models many instrument and system failures. If the vacuum system fails, the HSI gyros spin down slowly with a corresponding degradation in response as well as a slowly increasing bias/error.

Moderate Hardware Requirements

The intention of FlightGear is to look nice, but not at the expense of other aspects of a realistic simulator. Our focus is not on competing in the "game" market and not on the ultra-flashy graphic tricks.

The result is a simulator with moderate hardware requirements to run at smooth frame rates. You can be reasonably happy on a $500-1000 (USD) machine (possibly even less if you are careful) and dont necessarily need $3000 (USD) worth of new hardware like you do with the many of the newest games.

That said, the more hardware you throw at FlightGear, the better it looks and runs, so dont feel like you have to chuck your expensive new hardware if you just purchased it. :-)

Internal Properties EXPOSED!

FlightGear allows users and aircraft designers access to a very large number of internal state variables via numerous internal and external access mechanisms. These state variables are organized into a convenient hierarchal "property" tree.

Using the properties tree it is possible to monitor just about any internal state variable in FlightGear. Its possible to remotely control FlightGear from an external script. You can create model animations, sound effects, instrument animations and network protocols for about any situation imaginable just by editing a small number of human readable configuration files. This is a powerful system that makes FlightGear immensely flexible, configurable, and adaptable.

Networking options

A number of networking options allow FlightGear to communicate with other instances of FlightGear, GPS receivers, external flight dynamics modules, external autopilot or control modules, as well as other software such as the Open Glass Cockpit project and the Atlas mapping utility.

A generic input/output option allows for a user defined output protocol to a file, serial port or network client.

A multi player protocol is available for using FlightGear on a local network in a multi aircraft environment, for example to practice formation flight or for tower simulation purposes.

The powerful network options make it possible to synchronize several instances of FlightGear allowing for a multi-display, or even a cave environment. If all instances are running at the same frame rate consistently, it is possible to get extremely good and tight synchronization between displays.

Flight Gear and its source code have intentionally been kept open, available, and free. In doing so, we are able to take advantage of the efforts of tremendously talented people from around the world. Contrast this with the traditional approach of commercial software vendors, who are limited by the collective ability of the people they can hire and pay. Our approach brings its own unique challenges and difficulties, but we are confident (and other similarly structured projects have demonstrated) that in the long run we can outclass the commercial "competition."

Contributing to Flight Gear can be educational and a lot of fun. A long time developer, Curtis Olson, had this to say about working on Flight Gear:

Personally, Flight Gear has been a great learning experience for me. I have been exposed to many new ideas and have learned a tremendous amount of "good stuff" in the process of discussing and implementing various Flight Gear subsystems. If for no other reason, this alone makes it all worth while.