ORSA 1.0.1081

ORSA RendezvousWithVesta is a graphical software tool.
ORSA
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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 Vesta's surface;
provide a fast and reliable tool for the generation of orbits suitable for input in the Science Opportunity Analyzer (SOA) tool;

Here are some key features of "ORSA RendezvousWithVesta":

validated numerical algorithms, tested on NEAR mission data, and capable of accurately reproducing NEAR's orbit around Eros;
complete control over Vesta's physical properties: mass, mass distribution model, shape model, rotation period, and pole ecliptic latitude and longitude;
control over DAWN's initial orbit around Vesta: epoch, radius, equatorial (Vesta's 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 Vesta's 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 DAWN's orbit, phase angle, and equatorial coordinates with respect to Vesta; see the header of the file for more details.

last updated on:
July 5th, 2007, 15:23 GMT
price:
FREE!
homepage:
orsa.sourceforge.net
license type:
GPL (GNU General Public License) 
developed by:
Pasquale Tricarico
category:
ROOT \ Science and Engineering \ Astronomy
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