Open Source C Simulation Software

Software for pixelization, hierarchical indexation, synthesis, analysis, and visualization of data on the sphere. Please acknowledge HEALPix by quoting the web page http://healpix.sourceforge.net (or https://healpix.sourceforge.io) and publication: K.M. Gorski et al., 2005, Ap.J., 622, p.759 Full software documentation available at https://healpix.sourceforge.io/documentation.php Wiki Pages: https://sourceforge.net/p/healpix/wiki/Home Exchanging Data with HEALPix (in FITS files): https://sourceforge.net/p/healpix/wiki/Exchanging%20Data%20with%20HEALPix/ GDL and FL users should read https://sourceforge.net/p/healpix/wiki/HEALPix%20and%20GDL/

Project Apollo - NASSP (also known as NASSP or NCPP) is an add-on for the Orbiter space flight simulator. Project Apollo simulates the Apollo missions to Earth orbit and the Moon and the planned post-Apollo missions that never flew.

SaVi - simulate Starlink, Iridium, Globalstar, O3b, GPS, Galileo and other satellite constellations, modify them, or design your own. Requires Tcl/Tk and Unix libraries; 3D viewing option requires Geomview running on X Window.

ACRASH is an open implementation of the CRASH Monte-Carlo continuum radiative transfer scheme presented in Ciardi et al. 2001 and Maselli et al. 2003. This code solves the radiative transfer equation for any geometry in 3D using a Monte-Carlo scheme.

GGOS is a Graphical Simulator of the gravity interaction written in C. It provides a real-time tracking of the orbit and the user can interact with the universe with a lot of function. There is 2 different version:1(fast)with X11 2(slow)written with GLUT

Henry is an interface for Taylor 1.4.3 package (A. Jorba & M. Zou) and was written for master thesis to compute N-body problems (in Poincare variables) and MEGNO stability factor. Work is supported by Krzysztof Gozdziewski.

simulator stars cuda

This project contains the sources for the simulation codes used within ESA's Planck mission (http://sci.esa.int/planck/)

Desktop gadget (Windows only). The simulation of a real horizontal sundial, dependent on a geographic position (latitude). Size can be chosen between big and small. It can use current (computer) time, or user-specified date&time.

Libpsht is a collection of algorithms for efficient conversion between maps on the sphere and their spherical harmonic coefficients. It supports a wide range of pixelisations (including HEALPix, GLESP, and ECP). Development for this libary has stopped; its successor is libsharp (http://sourceforge.net/projects/libsharp).

NOTE: as of April 24, 2015, libsharp development has moved to Github (https://github.com/dagss/libsharp). Libsharp is a collection of algorithms for efficient conversion between maps on the sphere and their spherical harmonic coefficients. It supports a wide range of pixelisations (including HEALPix, GLESP, and ECP). This library is a successor of libpsht (http://sourceforge.net/projects/libpsht). A scientific overview over the functionality is given in the paper available at http://arxiv.org/abs/1303.4945.