SAOTrace

SAOTrace 1.0.0b1

SAOTrace is a suite of software designed to simulate the as-built performance of grazing-angle X-ray optics using the ray-tracing approach. It is derived from portions of the NASA OSAC (Optical Surface Analysis Code) software suite. It can model nested...

de423

de423 2010

de423 is the most recent short-period ephemeris published by the Jet Propulsion Laboratory. It achieves especially high accuracy for Mercury and Venus since it was prepared for the MESSENGER mission, and should be able to predict the coordinates of...

jplephem

jplephem 1.1

jplephem lets you consult a Jet Propulsion Laboratory ephemeris for the position and velocity of one of the planets, or the magnitude and rate-of-change of the Earth's nutation or the Moon's libration. To determine the position of Mars using the...

de406

de406 1997

de406 is the long-period ephemeris which is used by the Jet Propulsion Laboratory's online HORIZONS service for dates far in the past or future.Name: DE406 (May 1997)Years: -3000 through 3000Planets: YesSun/Moon: YesNutations: NoLibrations: NoReport:...

Planets

Planets 0.1.13

Planets is a simple interactive program for playing with simulations of planetary systems, released under the GPL. The project runs on Linux and Windows, and could doubtless be ported to your favorite flavor of Unix.Planets was originally designed for...

Xplanet

Xplanet 1.3.0

Xplanet is an open source graphical software written in C++ and designed to act as a solar system simulation game inspired by the Xearth game for Windows operating systems.Xplanet renders an image of the Earth into the X11 root window of your Linux...