GrandTour
Details
| Size: | 341 KB |
| Last Update: | 2008-03-19 13:03:40 |
| Version: | 4.1 |
| License/Program Type: | Shareware |
| Publisher: | John D. Callahan |
| Price: | $0.00 |
 Screenshot: | GrandTour Screenshots |
Description:
GRANDTOUR creates accurate wireframe scenes from Voyager or Giotto spacecraft, and from space or Earth (spacecraft visible). User has considerable control over time, field, etc., and many frames/second are generated. Developed at JPL to assist in analysis of science and optical navigation data, it was also filmed by the BBC/NOVA for a Voyager documentary. Conveniently runs from any Windows/DOS.
Downloadtube Editor Review
GrandTour is a wireframe simulator for the Voyager and Giotto space missions. It is freeware and may be distributed without limitations, but not changed.
GrandTour will run on just about any PC computer, except very old ones. GrandTour is contained in one small zip file (under 400KB), which contains the program and mission data for Voyager 1 and 2 at Jupiter and Saturn,
Voyager 2 at Uranus and Neptune, and Giotto at Halley's Comet.
GrandTour is a computer program which can simulate space as seen from the Voyager and Giotto spacecraft. In addition, GrandTour can generate scenes from arbitrary points in space or the Earth, with the spacecraft visible to the observer. The planet, moons, and rings of interest (or comet, nucleus, and tail), stars, the sun, and the spacecraft are all accurately drawn with wireframe representations. Hidden line removal is done for the body surfaces. Stars are color coded according to spectral type.
The motions of the bodies themselves are highly accurate, with errors no greater than 500 kilometers. New methods were developed to rapidly render scientifically accurate 3D space. Oblate bodies are given their true shape and it is possible to place landmarks on most of the bodies.
Landmarks are fictitious and only designed to help visualize the bodies. For this reason, Titan and Uranus have no landmarks, because Voyager observed heavy, largely featureless atmospheres for them.
The program was originally developed at the Jet Propulsion Laboratory (MIP program) to assist in the analysis of science and optical navigation data. It was under continual development for a 5 year period (1982 to 1987) and generated interest among several groups at JPL. In addition, the program was filmed by the BBC as part of a NOVA documentary on the Voyager Uranus encounter, and by the Four Point Entertainment Company for a commercially available video on Halley's Comet (with William Shatner). The Quasat movie -- shown around the US, Europe, and Japan -- was made with a program derived from MIP.
The program was often demonstrated to technical groups within JPL and to visitors (including a group of Berkeley professors, and Robert H. Schuller of the Hour of Power). Also, it played a critical role in obtaining a contract to develop Space Telescope solar system planning software (from Goddard Space Flight Center). Since the program was highly transportable, it ended up running on many computers. Computer animation at many frames per second is possible.
The program is interactive and user friendly with much flexibility and many options and features.
Despite it got quite old, this free tool is still a must for anyone who has astronomy as his hobby or his working field.
8 out of 10
Requirements:
-GrandTour only requires an ancient IBM PC compatible with 512K of RAM, 1M of hard drive, DOS 2.0 or higher, and EGA graphics.
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