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A spy satellite (officially referred to as a reconnaissance satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. These are essentially space telescopes that are pointed toward the Earth instead of toward the stars. The first generation type (i.e. Corona and Zenit) took photographs, then ejected canisters of photographic film, which would descend to earth. Corona capsules were retrieved in mid-air as they floated down on parachutes. Later spacecraft had digital imaging systems and downloaded the images via encrypted radio links. In the United States, most information available is on programs that existed up to 1972. Some information about programs prior to that time are still classified, and a small trickle of information is available on subsequent missions. A few up-to-date reconnaissance satellite images have been declassified on occasion, or leaked, as in the case of KH-11 photographs which were sent to Jane's Defence Weekly in 1985. From Wikipedia under the
GNU Free Documentation License  huffingtonpost.com 365px x 512px | 40.50kB [source page] In this picture provided by the U S Navy Fire Controlman 2nd Class John Whitby from San Leandro Calif operates the radar system control in the combat information center during a  electronicsweekly.com 342px x 456px | 38.70kB [source page] Asparagus isn t my favorite vegetable but I like the analogy Rene Penning de Vries CTO of NXP makes in an interview with my colleague David Manners in which he describes how systems design From Yahoo Image Search: "Spy satellite"  uni-dir.net Physics Wed, 13 Jan 2010 22:22:12 GM Spy satellite. technology in a mobile phone camera NYTimes.com: OmniVision has announced a new image sensor chip that uses a technique called BSI, or Back Side Illumination that basically turns the camera chip upside down so that the ...  astroguyz.com David Dickinson Wed, 20 Jan 2010 00:01:34 GM A very few, like the Space Shuttle or the International Space Station, may have human eyes staring back at you; and an occasional rare . spy satellite. may even have electronic eyes of a more sinister nature. This week, we're going to ...  satelit.web.id unknown hu, 04 Feb 2010 22:26:15 GM that Galileo can have military applications; Arianespace announces revenue increase; ESA's Moon mission ends successfully with a crash; BNSC funds space surveillance project; Update: Failed US . spy satellite. likely is NRO-L21. From Google Blog Search: "Spy satellite"  news.google.com Examiner.com Secrecy cloaks the monitoring effort, because the Obama administration and Global Warming scientist want to keep abilities of its spy satellites and other ... WND People WND.com all 68 news articles » news.google.com Popular Mechanics Kepler's mission is to spy on stars likely to possess earthlike planets, so many of these orange dwarfs already reside in the satellite's field of view. ... and more » news.google.com Arab Times Ya Mahdi, Taghipour said as quoted by ISNA, was an experimental satellite and the launch would be for testing camera and telecommunications equipment. ... and more » From Google News Search: "Spy satellite" If a millitary spy satellite fell on your house, would they be liable for the damages? Q. With the us military getting ready to shoot down a satellite, i was just wondering what would happen if they miss with all three missiles. Asked by Snowboard Zombie - Wed Feb 20 15:32:51 2008 - - 14 Answers - 0 Comments A. Yes, they would be liable. The US government settles out of court routinely for such matters. Get a decent lawyer and you could be looking at big $$$. Actually, HOPE the satellite falls on your house, HOPE. Answered by VastRightWingConspiracy - Wed Feb 20 15:40:33 2008 The physics of a spy satellite and it's period of revolution.? Q. A spy satellite is located one Earths radius above the surface of the Earth. What is it's period of revolution? Asked by Aubrey Y - Thu Mar 6 14:15:09 2008 - - 2 Answers - 0 Comments A. I would do it like this. for the satellite to be in orbit, the centrifugal force due to rotating around the earth = force due to gravity... F = G m1m2/r^2 is force due to gravity (m1 = mass earth, m2 = mass satellite) and F = m r = centrifugal force where = radians/time so G m1 m / r = m r cancel m and... G m1/ r = where r = 2 x 6356 km = 12,712,000 m = (6.67x10^-11 m /kgs ) x (5.94x10^24kg) / (12,712,000 m) = 1.93 x 10^-7/s so = 0.000439 radians / s = 0.000439 radians / s x pi / 180 = 7.66 x 10^-6 revolutions/sec... so = 1 revolution / (1/1.53 x 10^-5) s = 1 rev / 130529 s which is about 1 rev every 36 hours, 15 minutes and 30 seconds. Answered by m w - Thu Mar 6 14:33:21 2008 USA spy satellite freely falling off the orbit? Will it land on you?
Q. What if it were a nuclear bomb? Have humanbeing gone too far? Ever imagine some natural forces(volcano etc) that can set off all the nuclear reactor around you? The usefulness of bombs and guns are evident in our today human life. Will you like any of these nice weapon used on you? Are we just some trigger happy bunch? Asked by asuku t - Mon Jan 28 11:57:44 2008 - - 2 Answers - 0 Comments A. What does the rest of your statement have to do with the satellite? For that matter the fact it is a US spy satellite? Many satellites are in orbit and sooner or later they will come down-something that has been known since they were put up there. Want all the satellites down or destroyed just in case one falls on you? Ready to do away with satellite and cable TV, cell phones, and the Internet? Almost all modern communications use satellites. The last "nuclear" thing that fell was a Russian or Chinese satellite (can't remember which) that fell in Australia; the US did not use atomic power plants in there satellites but both Russia and China have so talk to them about that. Satellites fall almost daily, the old ones degrade in orbit… [cont.] Answered by GunnyC - Mon Jan 28 12:10:36 2008 From Yahoo Answer Search: "Spy satellite" |
