1. Howstuffworks "How Satellites Work" Thousands of satellites fly overhead every day, helping us with things like weather forecasts, scientific research, communications, and TV broadcasts. http://science.howstuffworks.com/satellite.htm

HowStuffWorks.com RSS Make HowStuffWorks your homepage Get Newsletter Search HowStuffWorks and the web: Science Space Space Exploration Space exploration is a broad topic covering many facets of deep-space and planetary science. Learn about space probes, Mars Rovers, SETI and other out-of-this-world subjects. Related Categories: REFERENCE LINKS Print Email Cite Please copy/paste the following text to properly cite this How Stuff Works article: How Satellites Work by Gary Brown Inside This Article Introduction to How Satellites Work What is a Satellite? How is a Satellite Launched into an Orbit? Orbital Velocity and Altitude What is a Satellite Launch Window? ... articles Q: What are a satellite's apogee and perigee? A : The path a satellite follows is an orbit. In the orbit, the farthest point from Earth is the apogee, and the nearest point is the perigee. Not so long ago, satellites were exotic, top-secret devices. They were used primarily in a military capacity, for activities such as navigation and espionage. Now they are an essential part of our daily lives. We see and recognize their use in weather reports, television transmission by DIRECTV and the DISH Network, and everyday telephone calls. In many other instances, satellites play a background role that escapes our notice:

2. Satellite, Satellites, Satellite System At SPACE.com Space.com explains satellite phenomena, satellites, satellite systems, satellite images and satellite dishes. http://www.space.com/satellite/

Satellites A satellite is defined as any object that orbits any other object. Satellites can be celestial, such as a moon orbiting a planet in the solar system , or a planet in the solar system orbiting the sun . Satellites can also be man-made. Man-made satellites are typically launched into outer space from earth to collect data, photos and other information about Earth and all the many things that exist around it. From studying outer space and Earth’s atmosphere to tracking weather patterns and acquiring intelligence, satellites illuminate us with vital information and visual imagery that can not be captured in any other manner. Stay up to date with the latest satellite system information and news. Whether you’re interested in NASA and the Mars Renaissance Orbiter, which was the most recent satellite to visit the red planet, or the on-going global race to further research and explore the moon, our diverse satellite images, articles and other news features will expose you to distant places, planets and infinite possibilities for learning more about this expansive galaxy we call home.

3. NOAA - National Oceanic And Atmospheric Administration - Satellites Provides extensive resources on weather, oceanography and related satellite services by the government in USA. http://www.noaa.gov/satellites.html

NOAA HOME WEATHER OCEANS FISHERIES ... Help Search Criteria Weather.gov Forecast Active Weather Alerts NOAA Organizations Working With NOAA NOAA In Your State ... Emergency Information for NOAA Employees Related Links Image of the Day NESDIS Satellite Products Hurricane Imagery Search and Rescue/Beacon Registration ... Visualizations of Significant Weather Events Satellites When you watch the news and see pictures of weather from around the United States or the world, you are seeing data from NOAA’s environmental satellites. NOAA’s environmental satellites provide data from space to monitor the Earth to analyze the coastal waters , relay life-saving emergency beacons , and track tropical storms and hurricanes NOAA operates two types of satellite systems for the United States - geostationary satellites and polar-orbiting satellites.  Geostationary satellites constantly monitor the Western Hemisphere from around 22,240 miles above the Earth, and polar-orbiting satellites circle the Earth and provide global information from 540 miles above the Earth. Satellites enable us to provide consistent, long-term observations, 24 hours a day, 7 days a week.  They

4. LIVE REAL TIME SATELLITE AND SPACE SHUTTLE TRACKING Real time satellite tracking web application. Over 8000 satellites real time tracked. Other thousands of objects in our database. http://www.n2yo.com/

REAL TIME SATELLITE TRACKING powered by AJAX Enter your search terms Submit search form Web www.n2yo.com MOST POPULAR ATV-1 ISS (ZARYA) DIRECTV-11 AMC-14 ... HST LATEST LAUNCHES SAR LUPE 4 DIRECTV-11 AMC-14 USA 200 ... ATV-1 POPULAR CATEGORIES GEOSTATIONARY BRIGHTEST WEATHER NOAA ... GPS OPERATIONAL LIVE IN YOUR SKY GPS SATELLITES IRIDIUM SATELLITES GLOBALSTAR SATELLITES SIRIUS/XM SATELLITES ... WHAT'S UP? OTHER SATELLITE FEATURES ALL CATEGORIES SEARCH DATABASE BROWSE BY LAUNCH SATELLITE NEWS ... SUPPORT N2YO.COM SATELLITE AND SPACE SHUTTLE NEWS NEXT GPS SATELLITE ARRIVES AT FLORIDA SPACEPORT FOR LAUNCH - The penultimate satellite in the current generation of Global Positioning System spacecraft was airborne this morning, jetting from its Lockheed Martin factory in Pennsylvania to the Florida launch site. Boxed in a protective shipping container, the GPS 2R-20 satellite was flown to Cape Canaveral on an Air Force C-17 transport aircraft to begin preparations for this summer's trip into space. More Source: Spaceflight Now UNMANNED SHIP DOCKS AT SPACE STATION - A new European cargo ship flew up to the international space station and docked Thursday, successfully delivering food, water and clothes in its orbital debut. The unmanned cargo ship, called Jules Verne, was operated by flight controllers at a European Space Agency center in Toulouse, France.

5. Tech Museum | The Satellite Site! San Jose Tech Museum, Lockheed Martin, satellites, Orbits, Build a Satellite. http://www.thetech.org/exhibits/online/satellite/

Here's a brief description and definition. Satellites come in many shapes and sizes and have many uses. Select one of the five areas below to see how we use these orbiting machines. Communications Earth Remote Sensing Weather Global Positioning ... Scientific Research Want to make a satellite? Open up this interactive program and build three different kinds of satellites. (Requires Java enabled browser) Learn about what goes into a satellite to make it work. A satellite's orbit depends on its task, speed, and distance from Earth. Select one of these main orbit types to find out more. LEO Polar GEO Elliptical What's happening in the satellite world? Learn about our current featured satellite, ACeS

6. NASA - Science@NASA J-Track 3D Be sure to try the Satellite pulldown menu to choose which satellite you If you don t have Java, here are some of the most popular satellites for http://science.nasa.gov/realtime/jtrack/3d/JTrack3D.html

The Science@NASA site works best with JavaScript enabled in your browser. For instructions, click here + NASA Home + Search NASA Web + Contact NASA ... +Home Shortcuts Shift+Click Zoom In Ctrl+Click Zoom Out Click on satellite show trace Click in list show trace Drag rotate in 3d We hope you enjoy J-Track 3-D. It should appear in its own window and begin loading a database of over 900 satellites. What you will see (assuming your system supports this JAVA applet) is a plot in 3-dimensions showing the position of these satellites. Be sure to try the "Satellite" pull-down menu to choose which satellite you wish to view. If you don't have Java, here are some of the most popular satellites for tracking that you can view (no Java required!): Hubble Space Telescope Chandra X-Ray Observatory NOAA 15 NOAA 16 ... + ExpectMore - A Program Which Determines Whether Government Programs Are Effective Curator: Bryan Walls NASA Official: John M. Horack

7. Heavens-Above Home Page Online program that include graphics generated in realtime and customized for a location and time zone to observe satellites such as ISS, space shuttle, http://www.heavens-above.com/

Space Shuttle Mission STS-123 Endeavour has landed safely. Next mission will be STS-124 scheduled for 31st May. ATV Jules Verne Launched Europes unmanned space tranporter Jules Verne has been successfully launched. Please use the link below for visibility predictions. Configuration Current observing site: Unspecified, 0.0000°N, 0.0000°E select from map or from database or edit manually Registered user login Why register? Create new user account ... Subscribe to our AvantGo channel Satellites 10 day predictions for: ISS ATV Genesis-1 Envisat ... HST Daily predictions for all satellites brighter than magnitude: (brightest) (dimmest) Iridium Flares next 24 hrs next 7 days previous 48 hrs Daytime flares for 7 days - see satellites in broad daylight!

8. How Satellites Work: Teacher Resource In little more than a generation, the launching of a satellite has gone from stopping the nation s business to guaranteeing that it runs like clockwork. http://www.gma.org/surfing/sats.html

How Satellites Work What is a Satellite? Geostationary (GOES) Satellites What are the components of a human-made satellite? ... OSCAR Satellites These links take you to subsections of this page. You can scroll down the entire page, or jump to a topic of interest. In little more than a generation, the launching of a satellite has gone from stopping the nation's business to guaranteeing that it runs like clockwork. Today, satellites, like clocks, telephones, and computers, are commonplace tools of technology. They help us navigate, communicate, monitor the environment, and forecast weather. Appropriately, the word satellite means an "attendant." In 1957, the launching of the Russian satellite Sputnik changed the course of our nation. The United States immediately launched massive efforts to compete in a breakneck Race to the Moon. In the space of a decade, our nation of armchair explorers sat glued to their television sets while Alan Shepard went up and back in a Mercury capsule in 1961, as John Glenn circled the globe 3 times in 1962, and as Neil Armstrong set foot on the moon in 1969. That sense of discovery has muted over time as we became accustomed to the miracles of space travel. The launching of a Space Shuttle mission may not even come up in a class discussion of current events, yet satellites bring those same students the ability to watch the Olympics, the weather, and news of other events from around the world that are considered "newsworthy."

9. Visual Satellite Observer S Home Page Visual Satellite Observer s Home Page provides information for observing earth satellites. http://www.satobs.org/

10. Satellites Satellite TV support forum, UK, Europe and International. An ultimate rsource for fixed and motorised satellite TV systems, Encryption Decryption Keys, http://www.satellites.co.uk/

/** * vBulletin 3.7.0 Beta 6 CSS * Style: 'Default'; Style ID: 48 */ @import url("http://www.satellites.co.uk/satellite/clientscript/vbulletin_css/style-e66bef32-00048.css"); Satellites User Name Remember Me? Password: Register Forums Blogs FAQ ... Installers Main Menu Satellite Forums Daily Satellite News Critics' Corner Seccao Portuguesa ... Sky HD Dreambox HD Receiving Equipment DreamBox Dreambox 8000 Dreambox 7025 ... Dreambox 600 TV Channels What's On Adult Satellite Channels Live Football Schedules New Channels Technology Section Computer Digital Photography Sat Nav GPS Mobile Phone GSM ... Gizmos and Gadgets Site Info Advertise User Name: Password:: Remember Me? Not a member yet? Register Now! Help support this web site by making a donation here- Other ways to help support Sats UK Show Your Support Thank you. Members: 114,874 Threads: 76,892 Posts: 473,572 Top Poster: rolfw Welcome to our newest member, saviknaq ITV revises local news cutbacks 03 Apr, 2008 - 4:30 PM - by chris ITV has revised plans to cut services in its regional newsrooms to save money for its programmes. In September, the broadcaster said it wanted to merge 17 of its news offices to create nine regional services.

11. Satellite Meteorology: Online Remote Sensing Guide The Webster dictionary defines a satellite as a manmade object put into orbit around a celestial body, like the earth or the moon. satellites serve a wide http://ww2010.atmos.uiuc.edu/(Gh)/guides/rs/sat/home.rxml

Graphic developed by: Steven E. Hall The Webster dictionary defines a satellite as a man-made object put into orbit around a celestial body, like the earth or the moon. Satellites serve a wide variety of purposes from transmission of television signals via communication satellites to guidance and tracking systems of defense satellites. For meteorologists, satellites provide a comprehensive view of the world's weather by observing weather and the environment on a scale not possible by other means. On April 1, 1960, the nation's first weather satellite, "TIROS I" was launched into orbit. Soon after, meteorologists saw the first pictures of a midlatitude cyclone over the northeastern United States. A new era had begun. Since then, weather satellites have been launched into orbit and their capabilities have improved significantly. Today, not only do satellites observe clouds, but measure other non- visible radiation from the earth and atmosphere. This helps us to estimate such aspects as crop and soil conditions as well as monitor concentrations of atmospheric ozone and many other global characteristics. The purpose of this module is to examine Earth observing satellites and their capabilities in greater detail, focusing on two satellite orbital groups in particular;

12. Logiciels Pour La Biologie Maximum number of errors allowed between each repeat and the model for a satellite (not more than 10% of the model length) (maxerr) http://bioweb.pasteur.fr/seqanal/interfaces/satellites.html

Logiciels pour la biologie Portail Mobyle Documentations sur les logiciels Banques de données locales Serveur GenoList ... Logiciels développés à l'Institut Pasteur Logiciels en ligne Tous les programmes référencés ci-dessous sont disponibles au travers du nouveau portail Mobyle Recherches dans les banques Recherche par mot-clé, identifiant ... Recherche de séquences similaires à une séquence d'interet ... Structure tertiaire Documentations sur les logiciels (serveur UNIX) Vous trouverez ici la liste alphabétique des logiciels installés sur le serveur UNIX et accessibles aux utilisateurs locaux. Cette liste permet: d'accéder à la documentation des logiciels, de savoir comment les utiliser. Mise à jour: 31 décembre 2007 bioweb @pasteur.fr

13. Satellites The system comprises several satellites that provide worldwide, secure, twoway X-band communications and continental United States Air Force Strategic http://www.aero.org/programs/satellites.html

@import url(/main.css); The Aerospace Corporation Homepage About Us What is an FFRDC? Frequently Asked Questions ... Control Systems Satellites/Current Programs Defense Satellite Communications System (DSCS) Defense Meteorological Satellite Program (DMSP) Defense Support Program (DSP) Aerospace provides critical support to DSP, which comprises 23 missile launch-warning satellites that will be replaced by the Space Based Infrared System High program, the development of which we also support. Aerospace has devised and demonstrated new ways to merge DSP data with other intelligence information for real-time tactical force updates and for detecting forest fires and other natural disasters and phenomena. Global Broadcast Service (GBS) Developed in the mid-1990s, GBS can rapidly deliver large volumes of information to military users. Its need became apparent during Operation Desert Storm, when bandwidth constraints limited the amount of information that could be transmitted to the frontline. Because of GBS, critical video, maps, charts, weather patterns and digital data can be transmitted in seconds to mobile users equipped with small tactical terminals. Global Positioning System (GPS) Milstar The first Milstar I satellite was launched in 1994, and Aerospace supported the integration and test of the Milstar I and II series of satellites. The Milstar program provides National Command Authorities and Department of Defense users with worldwide survivable extremely high-frequency (EHF) communications. The system supports strategic and tactical missions using fixed-site terminals and small mobile terminals. Global connectivity is provided through satellite EHF crosslinks, which will be replaced by the Advanced Extremely High Frequency program as our military's core communications system.

14. Interactive Weather Satellite Imagery Viewers From NASA GHCC Interactively zoom and animate weather satellite images from a variety of geostationary satellites. Features of this site include sectoring, animation of http://wwwghcc.msfc.nasa.gov/GOES/

Derived Products from GOES East Interactive Global Geostationary Weather Satellite Images Select a weather satellite image map to view data from that sensor Weather Satellite Imagery for North America from GOES East. 1 km Visible Infrared Water Vapor Satellite Pictures for Pacific Ocean and North America from GOES West. 1 km Visible Infrared Water Vapor North and South America, Atlantic, and East Pacific Satellite Weather Imagery from GOES-East. Visible Infrared Water Vapor Caribbean and West Atlantic Hurricane Region from GOES East. Visible Infrared Water Vapor GOES East Full Disk Pictures. Visible Infrared Water Vapor Satellite imagery of Europe, Africa, the Middle East and Atlantic Ocean from METEOSAT-7. Visible Infrared Water Vapor Global Geostationary Weather Satellite Composite Global Infrared Mosaic Global Water Vapor Mosaic GOES-East CONUS: [North America 1 km Visible] [North America Infrared] [North America Water Vapor] Atlantic Hurricane Region: [Visible] [Infrared] [Water Vapor] GOES-East Full Disk: [Visible] [Infrared] [Water Vapor] GMS-5: [Visible] [Infrared] [Water Vapor] METEOSAT-7: [Visible] [Infrared] [Water Vapor] Composite: [Global Infrared Mosaic] [Global Water Vapor Mosaic] Where are sites with weather satellite imagery?

15. Satellites - Welcome satellites is an educational site where you can learn about Satellite Types and Uses, the Anatomy of a Satellite, and Canadian satellites. http://www.satellites.spacesim.org/

16. NOAA/National Environmental Satellite, Data, And Information Service Home Page NESDIS provides timely access to global environmental data from satellites and other sources to promote, protect, enhance the Nation s economy, security, http://www.nesdis.noaa.gov/

About Us Data and Information Satellites ... Education and Outreach Search NESDIS All of NOAA Image of the day In the Spotlight ! GOES West US GOES East US News and Current Events Remote Sensing Licensing Emergency Beacon Information ... Freedom of Information Act (FOIA) Site Map User Comments Budget and Planning Privacy Policy ... Information Quality Last modified: Tuesday, 01-Apr-2008 14:39:25 UTC US Dept of Commerce NOAA NESDIS Problems or questions? Contact us http://www.nesdis.noaa.gov/ Partnership Policy Implementation - Product Changes Commercial Remote Sensing Compliance and Monitoring Program

17. List Of Satellites In Geostationary Orbit List of satellites in geostationary orbit satellites in orbit around the equator. http://www.satsig.net/sslist.htm

List of Satellites in Geostationary Orbit If you access this list of satellites in orbit page please help by sending updates and changes to me Eric Johnston Orbit longitude / inclination Satellite name Launch date Details amended E MSG-2 MSG first colour image 21 Dec 05 5 Mar 06 2.5E i=2.7 Telecom 2C 6 Dec 95 6 Oct 06 3E i=3.9 Eutelsat Telecom 2A 16 Dec 91 6 Oct 05 Sirius 2 12 Nov 97 4 July 06 Sirius 3 5 Oct 1998 4 July 06 Sirius 4 17 Nov 2007 18 Nov 2007 Astra 1C 12 May 93 29 Feb 08 Eutelsat W3A 16 Mar 04 4 July 06 Express 4A 5 Oct 05 Eutelsat W1 7 Sep 00 4 July 06 Hotbird 1 28 Mar 95 4 May 06 Hotbird 2 21 Nov 96 4 May 06 Hotbird 3 2 Sept 97 4 May 06 Hotbird 6 21 Aug 02 4 May 06 Hotbird 7A 11 Mar 06 11 Oct 2006 Eutelsat W2 5 Oct 98 4 July 06 SICRAL 1 7 Feb 01 6 Oct 05 Astra 1B 2 Mar 91 Astra 1F 8 Apr 96 29 Feb 08 Astra 1G 2 Dec 97 29 Feb 08 Astra 1H 18 Jun 99 29 Feb 08 Astra 1KR 20 Apr 06 29 Feb 08 Astra 1L 5 May 07 29 Feb 08 AfriStar 28 Oct 98 5 Jul 06 21.4E i=4 Artemis 12 July 2001 5 Oct 05 Eutelsat W6 (was called W3) 12 Apr 99 4 July 06 Astra 1E 19 Oct 95 29 Feb 08 Astra 3A 29 Mar 02 29 Feb 08 25E i=0.4

18. The Satellite Encyclopedia The Satellite Encyclopedia is a technical reference containing information on 2500 satellites. Multiple thematic listings (country, launcher, purpose) and http://www.tbs-satellite.com/tse/

The Satellite Encyclopedia TSE (short name for "The Satellite Encyclopedia") is a hypertext document built around a dictionary of 2500 satellites. Each satellite fact sheet contains basic information (launch date, official identification...) and extensive description of the payload. TSE is updated every 3 months. TSE in brief Download the Winhelp limited version Order the WWW edition Full ordering information ... Order the Winhelp edition T HE S ATELLITE E NCYCLOPEDIA IN F ACTS Available in Winhelp and WWW formats over 4500 pages see a sample satellite fact sheet multiple thematic listings (per country, launcher, purpose, etc.) 650 high quality see the list the list of satellites on the Clarke Belt slot per slot 2500 satellites covered a detailed list of future launches (250+ satellites with descriptions) 11000 keywords to search from! Published since 1994... 58th edition! Who buys The Satellite Encyclopedia? Space agencies Satellite operators Spacecraft manufacturers Satellite dealers check-out our customer list! Consultants and Engineers Technical libraries check-out our customer list!

19. CSA - Satellites By observing the Earth from space, satellites provide essential information on ocean, ice, land environments, and the atmosphere. http://www.space.gc.ca/asc/eng/satellites/

Index A to Z You are here: home satellites Canada's Earth observation satellites and foreign satellites with Canadian instruments. Select one. By observing the Earth from space, satellites provide essential information on ocean, ice, land environments, and the atmosphere. Earth-observation satellites help us monitor and protect our environment, manage our resources, and ensure the safety and security of Canadians. Satellite imagery and expertise is also used to support global humanitarian efforts and sustainable development. Discover Canada's communications satellites Communications satellites are the most economical way to connect Canadian communities, even the most remote, with the advanced services needed to compete in the global knowledge economy. Assisting search and rescue teams Providing ships and aircraft with geopositioning information Beaming instructors to classrooms across the country Discover Canada's science satellites and international satellites which carry Canadian instruments Canada is renowned for the exceptional instruments on its science satellites . Some of these expand our understanding of the origin, formation, structure, and evolution of celestial bodies and the universe. Others study the physics and effects of phenomena such as aurora borealis on Earth's magnetic field.

20. ScienceDaily: Satellite News satellites. Read science articles on every type of satellite, from the new infrared satellite to microsatellites. Free satellite pictures too. http://www.sciencedaily.com/news/space_time/satellites/

Satellite News Thursday, April 3, 2008 Print Email Bookmark Latest News Astronomy Astronomy Black Holes Cosmic Rays Dark Matter ... Stars Cosmology Astrophysics Big Bang Cosmology Solar System Asteroids, Comets and Meteors Jupiter Kuiper Belt Mars ... Xena Space Exploration ESA NASA Satellites Space Exploration ... Books RSS Vanguard I Celebrates 50 Years In Space full story Artemis Provides Communications For Jules Verne ATV full story ... Air Quality Forecasts See Future In Space Browse News Stories 1 to 10 of 53 stories view headlines only Black Holes Cosmic Rays Space Telescopes ... Worldwide Hunt To Solve The Mystery Of Gamma-ray Bursts February 22, 2008 full story Stars Satellites Astronomy ... Double Star TC-1 Completes Its Mission October 19, 2007 full story Satellites Space Station NASA ... Fifty Years After Sputnik October 5, 2007 full story Satellites Space Station Geography ... Greeks Get Space-based Help In Wake Of Deadly Fires September 23, 2007 full story Moon Space Missions Space Exploration ... Japan's KAGUYA Spacecraft Blasts Off To Explore The Moon September 14, 2007 full story Satellites Alternative Fuels Fossil Fuels ... Engineers Rescue Aging Satellites, Saving Millions

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 1     1-20 of 88    1  | 2  | 3  | 4  | 5  | Next 20