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User: HSI_Guy

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  1. Anybody know the specs? Spectral/Spatial res? on Ariane 5 Deploys French Spy Satellite · · Score: 1

    I know its a spy satellite but there has to be someone or some group that can speculate on the capabilities of the sensor(s) onboard the satellite. I'd be curious to know the spectral range and resolution along with the spatial resolution.

  2. NGA on Spysats Keeping Watch on the U.S. · · Score: 3, Insightful

    As far as I know, the NGA doesn't operate like the CIA or FBI, in that it doesn't involve itself with surveillance of indivuals or businesses, etc directly. It basically gets tasked to geospatially analyze an area or scene. In addition to doing 3d modeling (which can be used for mission planning, etc.), (using LIDAR to map sniper vectors, etc), capabilities include identifying materials on the ground from space-based or aerial assets. (Multispectral or Hyperspectral analysis) Much of the agency's ability to analyze is derived from commercial or unclassified platforms. On the opposite side of the spectrum (pun intended), much of what national asset capabilities are used for are, in effect, as a highly accurate reference. So, when you are classifying endmembers in a hyperspectral satellite image, you use classified geo-referenced imagery to pinpoint a targeted area. Geospatial is absolutely amazing, and like the first poster stated, I can't believe more people aren't involved in it (good for me). It truly is an area that is blowing up, and offsetting the losses in other IT areas. One of the main reasons for that is that it's not only pressing buttons and coding all day long. It involves elements of programming, analysis, geography, geology, hydrology, ground-truthing (field work) and countless others. It takes alot of knowledge in many fields to be an expert. Many experts have one niche, and know relatively little in others.