41. How GPS Works: The GPS Satellites How GPS works The types of GPS satellites and how they look like. http://www.kowoma.de/en/gps/satellites.htm

GPS - explained last updated: Main page GPS-System History Satellites Satellite Orbits Control Segment ... WAAS and EGNOS Geodesy Longitudes and Latitudes Additional Info Earth`s Atmosphere The Setup of the GPS System The GPS system can be devided into three basic segments which will be discussed below: Space segment (satellites) Control segment (control stations) User segment (GPS receiver) Space Segment GPS-Block IIF Satellite (Credits: NASA The space segment consists of at least 24 satellites. The first of the satellites was brought to its orbit as early as 1978. During the years the satellites became more and more sophisticated and meanwhile five different types of these satellites exist (Block I, Block II, Block IIA, Block IIR und Block IIF). Block I Satellites GPS-Block I Satellite (Credits: NASA From 1978 to 1985 11 Block I satellites were launched from California, each having a weight of 845 kg. None of those still operates today. Their lifespan was supposed to be 4.5 years and all of them exceeded this lifespan about another 5 years. The oldest of the satellites, in the beginning designed as prototype for the testing of the system, has been operating for 13 years. Further information about the Block I satellites can be obtained here , however with the satellites being out of operation the most recent available information is from 1996.

42. Illuminations Orbiting Satellites The lesson explores the connection of Earthorbiting satellites to the study of the environment. Both geometric and algebraic concepts are presented to http://illuminations.nctm.org/LessonDetail.aspx?id=L268

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44. Indian Satellites Provided technological experience in building and operating a satellite system. Launched by Russian launch vehicle Intercosmos. http://www.isro.org/sat.htm

About ISRO ISRO Centres Programmes Decade Plan ... Press Release Indian Satellites Sl.No. Satellite Launch Date Achievements Aryabhata First Indian satellite. Provided technological experience in building and operating a satellite system. Launched by Russian launch vehicle Intercosmos. Bhaskara-I First experimental remote sensing satellite. Carried TV and microwave cameras. Launched by Russian launch vehicle Intercosmos. Bhaskara-II Second experimental remote sensing satellite similar to Bhaskara-1. Provided experience in building and operating a remote sensing satellite system on an end-to-end basis. Launched by Russian launch vehicle Intercosmos. Ariane Passenger Payload Experiment (APPLE) First experimental communication satellite. Provided experience in building and operating a three-axis stabilised communication satellite. Launched by the European Ariane. Rohini Technology Payload (RTP) Intended for measuring in-flight performance of first experimental flight of SLV-3, the first Indian launch vehicle. Could not be placed in orbit.

45. CloudSat - Education: Satellites The ATrain is a set of 5 satellites that are planned to orbit in the same orbital plane one after the other in pretty close spacing. http://cloudsat.atmos.colostate.edu/education/satellites

@import URL("/stylesheets/cloudsat.css"); + NASA Home Page + NASA CloudSat Portal Home Overview ... Contacts Education: Satellites Meet the Satellites in the A-Train What is the " A-Train The A-Train is a set of 5 satellites that are planned to orbit in the same orbital plane one after the other in pretty close spacing. It is approximately 15 minutes from the front satellite to the rear satellite and some of them are within a minute of each other. The A-Train is led by the Aqua satellite. Next are CloudSat and CALIPSO followed by Parasol and then Aura pulling the rear. All five satellites cross the equator within a few minutes of one another at around 1:30 pm (13:30) local time. Since these satellites are flying in tandem, the set of satellites is referred to as a constellation, or alternatively, as a formation. Because the satellites are in close formation with each other, they pass over a given spot on earth fairly quickly one after the other. This is beneficial because we can combine data from instruments on the different platforms into combined measurements. It is almost as if all these instruments are on the same platform because they are getting an almost simultaneous view of a certain spot on the ground or in the atmosphere. The term A-Train comes from an old jazz tune, Take the A-Train composed by Billy Strayhorn and made popular by Duke Ellingtons band, and has become a popular nickname for the Afternoon Constellation because Aqua is the lead member of the formation and Aura is in the rear. The other missions that make up the A-Train are CloudSat, CALIPSO and PARASOL. Each individual mission has its own objectives and will improve our understanding of aspects of the Earths climate.

46. Amateur Radio Satellites Live OSCAR Satellite Status Page give a single global reference point for all users in the Amateur Satellite Service to show the most up-to-date status of http://www.ac6v.com/satellites.htm

Open links in a new window SATELLITES AND SPACE LINKS SOFTWARE is a software-based Slow-Scan Television (SSTV) system, developed by MAREX-MG for deployment on the International Space Station. It will be used by future ISS crews for SSTV image communications with amateur radio operators worldwide. Live OSCAR Satellite Status Page - give a single global reference point for all users in the Amateur Satellite Service to show the most up-to-date status of all satellites as actually reported in real time by users around the world. AMSAT Amateur Radio Satellite Corp Home Page AO-40 Logger - From Alex Artieda, HB9DRI From J Harmon, W8DRO New satellite website from Jonathan Cox with information about operation with Linux and AX.25 & TCP/IP packet, as well as general information about Linux. The most interesting feature, however, is the directory of UO-14 and AO-27 recordings. I have produced full length, DSP enhanced, edited (took out static) MP3 recordings of all of my AO-27 and UO-14 contacts. I add them within an hour or two after I work the birds on a regular basis. I also wrote an addition to the Linux software ft100, which now allows for complete doppler shift correction of the FT-100 by polling the program "predict". The source is available for download on the site too. Great Satellite Pages By Ken Ernandes, N2WWD

47. Home - FXSatellites sonicview\ s new SV4000 Digital Satellite Free-To-Air Receiver continues Sonicview\ s solid reputation in the FTA Market!!! Based on the highly regarded http://www.fxsatellites.com/

FX Satellites About Us Authorized Dealer About FTA ... Contact Us Categories: Featured Products Accessories Cabling Connectors ... Check Out Amount In Cart (CAD): Captiveworks CW-800s PVR FTA Satellite Receiver ONLY SKU - CW800sPVR The CaptiveWorks CW-800 comes with an outstanding set of features making it truely one of the best digital satellite receivers in the market. Add To Cart Buy Now Featured Products ONLY Conaxsat USB Mini FTA Satellite Receiver Conaxsat has a Reputation for making high quality Free to Air Receivers for a reasonable price. The long awaited Conaxsat Mini has Arrived at an Unbelievable Price. Add To Cart Buy Now ONLY Conaxsat Duo PVR FTA Satellite Receiver It's finally here, the Conaxsat Duo offers incredible performance at an incredible price. This box is a PVR right out of the box, all you need to do is add a USB hard drive and you are ready to go. Add To Cart Buy Now ONLY Conaxsat Trio FTA Satellite Reciever Its Finally here! Some of the new features include 3 USB ports, True PVR Timeshifting, Music Juke Box, Digital Photo Album, Divx Support (1080i picture quality), Dual Processors + 64MB Ram). Add To Cart Buy Now ONLY Viewsat PVR7000 Digital Satellite Receiver w/ Dual Tuner PVR Add To Cart Buy Now ONLY NEW Version 2 ULTRA Add To Cart Buy Now ONLY Viewsat VS2000 Platinum LITE Digital Satellite Free-to-Air Receiver The Viewsat Platinum Lite was developed to meet the demand for a lower priced unit with the same power as the Viewsat Platinum. Includes FREE DiSEqC switch and serial cable!!!

48. Satellite Communication --  Britannica Online Encyclopedia Britannica online encyclopedia article on satellite communication in telecommunication, the use of artificial satellites to provide communications links http://www.britannica.com/eb/article-9065845/satellite-communication

var britAdCategory = "other"; Already a member? LOGIN Encyclopædia Britannica - the Online Encyclopedia Home Blog Advocacy Board ... Free Trial Britannica Online Content Related to this Topic This Article's Table of Contents Introduction Satellites as radio repeaters Orbit and attitude Development of satellite communication Print this Table of Contents Linked Articles microwave International Telecommunication Union Solar cell antenna Shopping New! Britannica Book of the Year The Ultimate Review of 2007. 2007 Britannica Encyclopedia Set (32-Volume Set) Revised, updated, and still unrivaled. New! Britannica 2008 Ultimate DVD/CD-ROM The world's premier software reference source. satellite communication Page 1 of 3 NASA in telecommunication , the use of artificial satellites to provide communications links between various points on Earth satellite communication... (75 of 2017 words) To read the full article, activate your FREE Trial Close Enable free complete viewings of Britannica premium articles when linked from your website or blog-post. Now readers of your website, blog-post, or any other web content can enjoy full access to this article on satellite communication , or any Britannica premium article for free, even those readers without a premium membership. Just copy the HTML code fragment provided below to create the link and then paste it within your web content. For more details about this feature, visit our

49. Met Office: Satellites Satellite satellites provide a huge variety of information. They carry instruments that relay telecommunications signals (telephone messages, TV pictures, http://www.metoffice.gov.uk/education/secondary/students/satellites.html

Site map Accessibility Search Skip navigation Weather UK Europe ... Students Satellites Satellites provide a huge variety of information. They carry instruments that relay telecommunications signals (telephone messages, TV pictures, emergency messages from ships and aircraft, etc.), help in navigation, measure changes in vegetation or movements in the earth's surface and observe the atmosphere. Those that observe the atmosphere are known as weather satellites and the information they provide is used by weather forecasters, as well as others with an interest in the weather. Most people are now familiar with the pictures that are shown on the TV Weather Forecast, but there are other types of observation being made in the atmosphere. The first successful weather satellite was called TIROS1 and was launched on 1 April 1960. The subsequent launch of other observing systems has resulted in the creation of an imaging network on a truly global scale. Information is now available for inhospitable land areas and the oceans, where weather data were previously largely unavailable.

50. Satellite Television could not exist in its contemporary form without satellites. Since 10 July 1962, when NASA technicians in Maine transmitted fuzzy images of http://www.museum.tv/archives/etv/S/htmlS/satellite/satellite.htm

SATELLITE Television could not exist in its contemporary form without satellites. Since 10 July 1962, when NASA technicians in Maine transmitted fuzzy images of themselves to engineers at a receiving station in England using the Telstar satellite, orbiting communications satellites have been routinely used to deliver television news and programming between companies and to broadcasters and cable operators. And since the mid-1980s they have been increasingly used to broadcast programming directly to viewers, to distribute advertising, and to provide live news coverage. Each satellite has a distinct "footprint," or coverage area, which is meticulously shaped and plotted. In 1971, the first communications satellites carrying "spot beam" antennas were launched. A spot beam antenna can be steered to focus the satellite's reception and transmission capabilities on a small portion of the earth, instead of the 40% of the earth's surface a wider antenna beam could cover. Spot coverage is crucial in international broadcasting, when neighboring countries may object to signal "spillover" into their territory. Some developing countries have demonstrated success in using satellite delivered television to provide useful information to portions of their populations out of reach of terrestrial broadcasting. In 1975, an experimental satellite communications project called SITE (Satellite Instructional Television Experiment) was used to bring informational television programs to rural India. The project led to Indian development of its own satellite network. China has also embarked on a ambitious program of satellite use for development, claiming substantial success in rural education.

51. Geostationary Satellites There are 2 kinds of manmade satellites in the heavens above One kind of satellite ORBITS the earth once or twice a day, and the other kind is called a http://www.reformation.org/geostationary-satellites.html

Geostationary Satellites There are 2 kinds of manmade satellites in the heavens above: One kind of satellite ORBITS the earth once or twice a day, and the other kind is called a communications satellite and it is PARKED in a STATIONARY position 22,300 miles (35,900 km) above the equator of the STATIONARY earth. A type of the orbiting satellite includes the space shuttle and the international space station which keep a low earth orbit (LEO) to avoid the deadly Van Allen radiation belts. The most prominent satellites in medium earth orbit (MEO) are the satellites which comprise the GLOBAL POSITIONING SYSTEM or GPS as it is called. The Global Positioning System The global positioning system was developed by the U.S. military and then opened to civilian use. It is used today to track planes, ships, trains, cars or literally anything that moves. Anyone can buy a receiver and track their exact location by using a GPS receiver. GPS satellites orbit at a height of about 12,000 miles (19,300 km) and orbit the earth once every 12 hours.

52. EXPLORES-SATELLITES-INDEX An historical look at each civilian weather satellite launched by the United States. Polar Orbiting satellites (POES). TIROS (19601966) ESSA (1966-1970) http://www.met.fsu.edu/explores/satellites/

SATELLITES- INDEX- An historical look at each civilian weather satellite launched by the United States Polar Orbiting Satellites (POES): TIROS (1960-1966) ESSA (1966-1970) NIMBUS (1964-1978) ITOS/NOAA (1970-1978) ... ATN/NOAA (1983-active; APT and HRPT imagery) Image Format Links (external): APT HRPT Geostationary Satellites (GOES): ATS (1966-1974) SMS/GOES (1974-1980) GOES (1980-1993) GOES-NEXT (1994-active; WEFAX and GVAR) Format Links (external): WEFAX LRIT GVAR last updated 3 June 2005 phr QUICK INDEX -HOME About Us Contact Info Help Search -Bulletin -Cudos -Globe -Imagery Archived Interp 17 -K-12 -Satellites -Tracking -Tropics -Weather Surf Forcasts -WHQ Teacher Database -Workshops -WXSAT-L The EXPLORES! satellite page is a complete guide to the history of all weather satellites launched by the U.S.. POES GOES Historical Photos

53. Special Report: The USA's Transformational Communications Satellite System (TSAT The Transformation Communications Satellite (TSAT) System is part of a The TSAT constellation of satellites, receivers, and infrastructure has seen a http://www.defenseindustrydaily.com/special-report-the-usas-transformational-com

Military Purchasing News for Defense Procurement Managers and Contractors Search this site: Get the DID newsletter Media Kit - Defense Trade Advertising Defense News Sikorsky Signs $7.4-11.6 Bn Contract With US Military EELV Contracts: After the Merger USA Moves to Improve Arms Export Regulation Process France Modernizing Alpha Jet Trainer Avionics ... Brazil Seeks Sub Fleet Combat System Upgrades Some Other Sources Air Power Australia Australia DoD Bharat Rakshak CASR - Canada ... Permanent Link Related stories: Contracts - Awards New Systems Tech Americas - USA Budgets ... FOCUS Articles Raytheon: C4ISR Future? (click to expand) As video communications is integrated into robots, soldiers, and UAVs, and network-centric warfare becomes the organizing principle of American warfighting, front-line demands for bandwidth are rising sharply. The Transformation Communications Satellite (TSAT) System is part of a larger effort by the US military to address this need. in green Why TSAT Is Thought to be Necessary The Big Picture: TSAT and the Transformational Communications Architecture What Is TSAT? The AEHF Alternative, and Lessons Learned for TSAT ... TSAT: Timeline and Ongoing Developments [updated] Why TSAT Is Thought to be Necessary V-RAMBO If bandwidth is becoming an important bottleneck in battle, went the question, what is the U.S. military to do?

54. Weather.com - Storm Encyclopedia - Hurricane Forecast And Hurricane Track - Weat Different methods include using satellites and radar, and reconnaissance aircraft. The first satellite launched by the United States to monitor weather http://www.weather.com/encyclopedia/tropical/tracking.html

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55. Photographing Satellites Photographing artificial earth satellites is a challenging facet of astrophotography that requires only simple equipment, a dark sky, a good technique, http://www.spacearchive.info/satphoto.htm

Photographing Satellites 2006 May 17 Photo of the Hubble Space Telescope crossing the summer Milky Way. Taken from Mount Pinos, California. Introduction Photographing artificial earth satellites is a challenging facet of astrophotography that requires only simple equipment, a dark sky, a good technique, and a measure of luck. Equipment The suggested equipment is relatively simple and consists of: Camera body capable of making time exposures 50mm lens that can be opened to f/2.8 Film Tripod Cable release Watch or clock with a seconds display Precision compass Clinometer The precision compass and clinometer are very useful, but not absolutely necessary. The following table lists several films for satellite photography. With the exception of TMAX P3200, they are all color print emulsions. There are probably other suitable films, but I've only listed those I've actually used with good results. One film I do not recommended is Konica SR-G3200; it's so grainy the images it produces are unusable. A good rule of thumb for selecting a film is to read the various astronomy magazines and see which films veteran astrophotographers are using. ASA Film Application Fuji HQ 100, Kodak Gold 100

56. Visually Observing Satellites - Useful And Informative Sites Flaring Geosynchs/Flaring Geosats (Around the equinoxes, operational geostationary or geosynchronous satellites can flare much more brightly than their http://web.austin.utexas.edu/edcannon/satellite.htm

Ed Cannon, December 11, 2006 TLEs SeeSat-L Archives SeeSat-L Home Page VSOHP ... Binoculars French: Daniel Deak Alphonse Pouplier Rainer Kracht Bibliography ... Home Satellite Predictions Evening satellite predictions for Austin, Texas , by Mike McCants Morning satellite predictions for Austin, Texas Iridium Flare Predictions for Austin, Texas Heavens-Above ... NASA Earth Observatory Satellite Overpass Predictor NASA "naked-eye visibility" predictions for International Space Station (ISS) (and Space Shuttle when it's in orbit) More satellite information and links Mike McCants' Satellite Tracking Web Pages (orbital data, prediction software, etc.) Some starting points on the Web for getting started in visual satellite observing Selected introductions and bibliography 75 Satellites Observed without Magnification in Nine Nights and 41 Satellites Observed without Magnification in Six Nights Flashing Geosynchs (tumbling/flashing non-operational payloads, mostly in drifting near-geosynchronous orbits) Centaurs and some other tumbling eccentric-orbit objects I've observed SeeSat-L Hypermail Archive Members Page , and Home Page Visual Satellite Observers' Home Page Visual Satellite Observing FAQ Austin Astronomical Society Satellites Information ... Odds of seeing a re-entry (Did I see space junk or a meteor?)

57. The History Of Satellites - Sputnik I History changed with the successfully launch of Sputnik I the first artificial satellite was about the size of a basketball and took about 98 minutes to http://inventors.about.com/library/inventors/blsatellite.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') You are here: About Inventors Famous Inventions Invention History Databases ... S Start Inventions The History of Satellites - Sputnik I Inventors Inventors Essentials Beginners' 101 Turn Ideas Into Money ... Help The History of Satellites Sputnik and The Dawn of the Space Age Original Information provided by Roger D. Launius NASA Chief Historian and NASA History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I . The world's first artificial satellite was about the size of a basketball, weighed only 183 pounds, and took about 98 minutes to orbit the Earth on its elliptical path. That launch ushered in new political, military, technological, and scientific developments. While the Sputnik launch was a single event, it marked the start of the space age and the U.S.-U.S.S.R space race. The story begins in 1952, when the International Council of Scientific Unions decided to establish July 1, 1957, to December 31, 1958, as the International Geophysical Year (IGY) because the scientists knew that the cycles of solar activity would be at a high point then. In October 1954, the council adopted a resolution calling for artificial satellites to be launched during the IGY to map the Earth's surface.

58. Tofield Satellites Hockey Club The Tofield satellites are building a list of Alumni players, coaches or managers who have been involved either the current team or the previous satellites http://tofieldsatellites.com/

Home News Team Schedule ... Email Tofield Satellites Hockey Club Box 301 Tofield, AB Canada T0B 4J0 NEW FEATURE: Scoring updates from Satellites ROAD games. Click here to get updated scores throughout the game. Members section click here Forgot your password? Email us and send it to you. hockey@tofieldsatellites.com Next home action: Sat Jan 26th vs Coronation 8:30 pm Fan Appreciation Night BRHL This Week Wed Jan 23 Consort at Provost Fri Jan 25 Tofield at Big Valley Daysland at Coronation (in Castor) Irma at Viking Provost at Consort Sat Jan 26 Coronation at Tofield Wainwright at Daysland Viking at Irma Big Valley at Sedgewick Thank you! to all of our sponsors. We appreciate your support! Who are the Satellites? Click here for the team behind the team Click here for a look at the Alumni List The Tofield Satellites are building a list of Alumni players, coaches or managers who have been involved either the current team or the previous Satellites Hockey Club. If YOU are a former Satellite, or if you know of one, please contact Kevin Smook @ 780-662-4623 or Francis Van Engelen @ 780-662-3432 so we can build a registry. We need your contact information, and we need to know when you played. You can also email us at: hockey@tofieldsatellites.com

59. Communication Satellites Communications satellites have been around since 1958. A communications satellite is a spacecraft that orbits the Earth and relays messages, radio, http://www.smgaels.org/physics/97/MGRAHLFS.HTM

Communication Satellites Megan G. / Physics 337 / April 17,1997 Back Home First Satellites Early United States Satellites Passive and Active Communication Satellites ... Satellite vs. Terrestrial Cost Communications Satellites have been around since 1958. A communications satellite is a spacecraft that orbits the Earth and relays messages, radio, telephone and television signals. Stations on the ground, called earth stations, transmit signals to the satellite, which then relays the signal to other earth stations. As a newer form of communications, communications satellites are very useful in bringing the people in the world together. Communications between people that used to take days or even months, now take only minutes or seconds using satellites. First Satellites The first satellite to relay messages from one Earth Station to another was SCORE (Signal Communicating by Orbiting Relay Equipment) launched December 18, 1958. These early satellites, because they were visible from both sides of the Atlantic Ocean simultaneous for only a short time could provide only a period of five hours a day for communications. Early United States Satellites In 1960 the United States launched the Echo satellite, a metallic balloon that reflected signals. Later satellites, such as Telestar and Relay, included electronic relay equipment called transponders. Syncom II, the first satellite to be placed in a synchronous orbit, was launched in 1963. The first commercial communications satellites were launched in 1965.

60. SkyandTelescope.com - Satellites SkyandTelescope.com s Satellite Tracker. The International Space Station passes These communications satellites can briefly outshine Venus as they spray http://www.skyandtelescope.com/observing/objects/satellites

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