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Question on satellite images

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I remember reading a post from Ryan a few months ago in which he said something about ORBX (he was actually answering a question from another forum user) and he mentioned that he could get any satellite image the ORBX guys asked him for (I'm sorry if I'm mistaken). In case I do remembe it correctly, could I ask you how do you do it Ryan? Because I'm starting a new scenery project, SBRJ, and I wondered where to get images better than Google Maps. It's just a question, really, and I do understand if you can't disclose this information because of contracts or something. Thank you in advance, Eduardo Rubini

See links below for the stuff you are after. Below is some info you might be interested in too, skip to the links at the bottom if you just want the data. Much of the satellite data you can find is free, and available from NASA, but that is largely because in the United States they regard any kind of info of that nature (that is not otherwise deemed sensitive and classified) as public domain, based on the notion that since the US public paid for it being obtained from all that shiny space hardware with their tax Dollars, then they should be able to have it if they want it. Sadly, that's not an admirably benevolent stance that every Government around the world have chosen to emulate, thus you'll find that some countries have that kind of data available in the public domain, and others do not. So if you want if for a country that does not take that view, then you will possibly have to pay for it. This is in fact why FS generally has better data for the Continental US than it does for many other countries incidentally. But, having said that, see the link below and you'll probably get what you want from there. Note that you will probably need two forms of data for creating accurate terrain, the terrain images themselves, and the terrain elevation date too (aka the 'mesh' more properly known as DEM - Digital Elevation Map data), although you could choose to stay with the default terrain elevation data if you wanted to. You can find a lot of mesh data online for free, and you can use programs such as MICRODEM. what you will be looking for is called SRTM (Shuttle Radar Topography Mission) data, which was gathered by the Space Shuttle Endeavor Orbiter on an eleven day mission carried out in 2000, in which the Shuttle basically flew all over th world in various orbits, bouncing a radar at the Earth's surface from specific altitude, timing the echoes in order to measure the height of the Earth's surface. as you can imagine, it spent most of its time doing that more accurately over places that mattered to the US, so that was the USA itself. plus anywhere that they had an interest, i.e. potential enemies and allies, so the data is not of a consistently high resolution for the entire Earth's surface, but it is mostly pretty good for everywhere and certainly more accurate than anything that had been previously obtained. This is probably what you want for the terrain images: http://zulu.ssc.nasa.../mrsid/mrsid.pl NASA Jet Propulsion Lab SRTM info page: http://www2.jpl.nasa.gov/srtm/ US Geological Survey page, where you can get the SRTM data: http://srtm.usgs.gov/index.php MICRODEM page: http://www.usna.edu/...em/microdem.htm Hope that helps - Al

Alan Bradbury

Check out my youtube flight sim videos: Here

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Thank you very much! That does helps a lot!!! Eduardo Rubini

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