61. Aloha Satellites Aloha satellites, one of the largest Dish Network retailers in the country, introduces for the first time in Hawaii, the solution to high cable bills for http://www.alohasatellites.com/

Satellite Television High Speed Internet Digital Phone Aloha Satellites*, one of the largest Dish Network retailers in the country, introduces for the first time in Hawaii, the solution to high cable bills for today's condominium and multi-tenant unit (MTU) buildings and hotel industry. Basic Bulk Television Service rates significantly less than the rates you are paying your current cable provider. Bulk and a-la-carte premium programming packages All major Hawaii local channels Hundreds of additional digital channels, including sports, movies, news, music, international, PPV, and more High-Speed Internet Access Owner and/or AOAO incentives

62. WikiAnswers - How Many GPS Satellites Are There And When Were They Put In Orbit There are 30 GPS satellites called NAVSTARs in place and the oldest one was launched in 1989. These are just the ones in operation now another 22 http://wiki.answers.com/Q/How_many_GPS_satellites_are_there_and_when_were_they_p

About Browse Advanced Search How to Contribute ... Most-recent questions For Example: How do you call a girl for a date? Is there a cure for migraines? ANSW.Init(10,""); Optional Login/ Register Username Password Remember me Why Register Lost Password? Optional Login /Register Username Password Retype Password E-mail Address Send me the monthly WikiAnswers newsletter with funky questions, helpful new features and announcements. Remember me Why Register Lost Password? Related Categories Global Positioning Systems Advertisement How many GPS satellites are there and when were they put in orbit? GPS Satellites There are 30 GPS satellites called NAVSTARs in place and the oldest one was launched in 1989. These are just the ones in operation now another 22 have been launched since the program started in 1978, but are no longer working. The design of the satellites has remained essentially the same over the years; the differences have just been in their operations. The first 11 satellites, known as Group I and designed by Rockwell International, were launched into orbit between 1978 and 1985 from Vandenburg Air Force Base in California. Each of these satellites contained one Cesium and two Rubidium atomic clocks and could provide navigation and standard positioning information. Continuous contact with the Ground Control Segment (CS) was required for their operation. They were designed to last five years, but most lasted much longer. The next group of 9 satellites are called Group II and were also designed by Rockwell. These were the first to provide precision positioning information for military use and to be able to operate for 14 days without contact with the CS. Group II satellites contained four clocks – two Cesium and two Rubidium and were launched between February 1989 and October 1990 from Cape Canaveral Air Force Station in Florida. They were designed to last 7.3 years and two currently remain in operation.

63. 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!

64. EHam.net Forum Satellites Hottest Topics; 70cm satellites ic W32a ao-51 operation Recently Active Topics; 70cm satellites Info needed for 130016 CalAmp downconverter http://www.eham.net/forums/Satellites

eHam.net Home FAQ Log In Help! Please Subscribe! Welcome Anonymous Become a member! or Login! Call Search New to Ham Radio? My Profile Community Articles Forums News Reviews ... Survey Question Operating Contesting DX Cluster Spots Propagation Resources Calendar Classifieds Ham Exams Ham Links ... QSL Managers Site Info eHam Help (FAQ) Support the site The eHam Team Advertising Info ... About eHam.net QSL Managers Ham Links eHam.net Forum Satellites Forum Help Create a New Topic in Satellites You are currently viewing the most recently created topics in the Satellites forum. 418 Satellites Topics. Page 1 of 14 Next Topics Originator Posts Last Reply What birds now rather than where is this bird 24-Jan-2008 70cm satellites 22-Jan-2008 Info needed for 130016 CalAmp downconverter 30-Dec-2007 P3D and P3E 27-Dec-2007 ic W-32a ao-51 operation 18-Jan-2008 Kansas City Tracker 9-Dec-2007 Mirage KP-2/440 Control Unit - Hi SWR 7-Dec-2007 Phasing 2 Yagi's 3-Dec-2007 FM satellites 17-Nov-2007 Satellite offset 17-Nov-2007 Recommendations on Preamps 21-Nov-2007 Any updated contact info on N4QH Qhtenna?

65. Welcome To Heavens-Above 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/

Welcome to Heavens-Above Home If you're interested in satellites or astronomy, you've come to the right place! Our aim is to provide you with all the information you need to observe satellites such as the International Space Station and the Space Shuttle , spectacular events such as the dazzlingly bright flares from Iridium satellites as well as a wealth of other spaceflight and astronomical information. We not only provide the times of visibility, but also detailed star charts showing the satellite's track through the heavens. All our pages, including the graphics, are generated in real-time and customized for your location and time zone. Before we can generate the predictions for you, we need to know where you are, and there are several ways you can do this, depending on whether you are a registered user, want to become one, or prefer to use the site anonymously. For a discussion of the merits of registering, please click here . For some tips on how to get the best out of the site as an anonymous user, click here Registered Users Simply log-on . All your location details and preferences will be retrieved from our database. Anonymous Users Register as a user with Heavens-Above. We encourage all our visitors to do so.

66. 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/

67. :-:-:-Satellites-:-:-: The first generation THAICOM satellite systems which consist of two identical Hughes HS376 satellites THAICOM-1A (Formerly THAICOM-1) and THAICOM-2. http://www.thaicom.net/pages/our_satellite.aspx

Contact US Site Map Web Site Survey Thai Eng Home About Us Vision Shin Satellite Overview Subsidiaries -SBI -CSL -CamShin -LTC Investment Structure Management Structure Social Contribution -Satellite Museum -Other Social Contribution Projects Social Contribution Thaicom Foundation Presentation Satellite Museum Other Social Contribution Projects Transponder Leasing Service -Telecommunications Trunking Service -Rural Telephony -VSAT/ International VSAT Configuration -Occasional Service Video Broadcasting Service -Teleport Service -Direct-to-Home (DTH) Service -Channel Distribution Service -Global Television Service -High Definition Television (HDTV) Service Internet Via Satellite Service Turnkey Service Satellites Thaicom 1A Thaicom 2 Thaicom 4 (IPSTAR) Thaicom 5 Deorbjited Satellite Customer Support Overview Thaicom Teleport Service IPStar Customer Service Antenna Installation Satellite TV Channels Sun Outages Meteor Storms Press Room Latest Press Release Release Archive Publication Multimedia Newsletter Archive Investor Home Calendar IR News, SET and SEC Disclosure ... Glossary 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 Careers Contact us Website Survey Site Map Newsletter Thaicom 1A The first generation THAICOM satellite systems which consist of two identical Hughes HS-376 satellites: THAICOM-1A (Formerly THAICOM-1) and THAICOM-2. C-Band footprint coverage includes Thailand, Laos, Cambodia, Myanmar, Vietnam, Malaysia, the Philippines, Korea, Japan, and the East Coast of China with a nominal EIRP of 36 dBW. Ku-Band footprints of both THAICOM-1A and 2 provide a high-powered spot beam for Thailand with a nominal EIRP of 50 dBW which is ideally suited to direct broadcasting applications.

68. LEO Vs. GEO Satellites When Used With Mobile Satellite Services Learn about the differences in LEO and GEO satellites at GlobalCom. Call or email from anywhere to everywhere with your Globalstar satellite phone. http://www.globalcomsatphone.com/globalcom/leo_geo.html

Call or Today! LEO vs. GEO Satellites when used with Mobile Satellite Services The Globalstar The Iridium Both the Globalstar and Iridium satellites use Omni-directional antennas that do not require calibration like a satellite TV dish would require. Using an Omni-directional antenna only requires an 80% view of the sky to provide good service. Being able to use relatively small Omni-directional antenna allows the use of portable hand held devices. GEO systems use expensive, bulky directional antennas that must be pointed and calibrated to acquire a satellite. Currently GEO satellites have limited capacity to service mobile users. The spectrum for Mobile Satellite Systems are scarce so a MSS system require satellite systems that can maximize the use of the limited spectrum while providing multiple satellites to share the system. Currently GEO Systems presently use Frequency division multiple access frequency modulation (FDMA-FM). This type of technology requires inefficient band segmentation to share the spectrum. The Globalstar and Iridium LEO constellations will continue to perform even when a satellite in their constellation fails. This is due to the vast number satellites, constant rotation and speed at which the satellites travel. The GEO directional antennas must be pointed directly in the area of service for the satellite to work. If a GEO satellite fails an entire region could experience a systems outage. Globalstar and Iridium LEO satellites provide multiple paths of communications with a system constantly in motion.

69. TV Antennas And Satellite Dishes TV Antennas and Satellite Dishes Plus 1000 s of Other RV Parts and Accessories for Sale. Order online or Call our 800 . PPL s RV Parts Superstore. http://www.pplmotorhomes.com/parts/tv-antennas-tv-satellites-1.htm

Home RVs for Sale Sell Your RV RV Insurance ... Contact PPL TV Antennas and Satellite Dishes Telephone Order Lines are Open 7am to 7:30pm Mon-Fri, 9am to 4 pm Sat, Central Time Exciting New RV Products Prices valid thru 01/18/08 Click Below for faster lookup: Gps Navigation Systems Satellites - Winegard ... - Stationary How to Buy Order online Call toll free Visit us in Houston, Texas Most Items Ship Same Day if Ordered by Noon. RV Parts Home About PPL's RV Parts Superstore Return Policy STOCK # DESCRIPTION PRICE QTY ORDER Return to Menu Gps Navigation Systems LOWRANCE IWAY 500C GPS NAVIGATION SYSTEM W/VOICE PROMPT ...Regularly $943.50 On Sale for Only $729.00 ...Regularly $497.00 On Sale for Only $447.00 Return to Menu Rv Internet Access - Kvh Tracnet 100 RV INTERNET ACCESS - SURF ON YOUR TV - KVH TRACNET 100 ...Regularly $2003.00 On Sale for Only $1899.00 Return to Menu Satellite Antenna - Dish And Lnb DS4047-PVALNBS DISH HEAD WITH WALL AND ROOF MOUNT WITH LNB Return to Menu Satellite Antenna Tripod EZ48-KIT SATELLITE ANTENNA TRIPOD - 3 FT. EASY TO CARRY AND STORE. WINEGARD TRIPOD-BASE MOUNT. MODEL TR-2000 - TAKE YOUR DSS ON ...Regularly $51.95 On Sale for Only $47.19

70. Un-Manned Satellite Philately Below is an index to checklists of unmanned satellite philately, either by general discipline/category of satellite, OR by specific satellite or satellite http://www.cira.colostate.edu/cira/RAMM//hillger/satellites.htm

Un-Manned Satellite Philately Below is an index to checklists of un-manned satellite philately , either by general discipline/category of satellite, OR by specific satellite or satellite series. Our goal is to build an online catalogue for Un-Manned Satellite Philately (and Weather Philately ), available to and shared with anyone who is interested. To date, since these Web pages were started in 2001, there are over 100 pages and over 10,000 images in our areas of interest. If readers know of additional information or images, please contact the authors using the e-mail addresses at the bottom of this page. Satellites Ordered by Discipline/Category Satellites Ordered by Name or Series "Launch" pages below feature the following: reference images launch covers, anniversary-of-launch covers, and launch-related event covers FDCs and other postal covers, only if there is no satellite-specific page in the right-hand column either stamps or links to the corresponding "stamp" pages in the right-hand column "Stamp" pages below feature the following postal items: stamps, souvenir sheets, and miniature sheets

71. Mathematics Of Satellite Motion The same simple laws which govern the motion of objects on earth also extend to the heavens to govern the motion of planets, moons, and other satellites. http://www.glenbrook.k12.il.us/gbssci/phys/Class/circles/u6l4c.html

Circular and Satellite Motion: Chapter Outline About the Tutorial Tutorial Topics Usage Policy ... Feedback Lesson 1: Motion Characteristics for Circular Motion Speed and Velocity Acceleration The Centripetal Force Requirement The Forbidden F-Word ... Mathematics of Circular Motion Lesson 2: Applications of Circular Motion Newton's Second law - Revisited Amusement Park Physics Athletics Lesson 3: Universal Gravitation Gravity is More Than a Name The Apple, the Moon, and the Inverse Square Law Newton's Law of Universal Gravitation Cavendish and the Value of G ... The Value of g Lesson 4: Planetary and Satellite Motion Kepler's Three Laws Circular Motion Principles for Satellites Mathematics of Satellite Motion Weightlessness in Orbit ... Energy Relationships for Satellites Lesson 4: Planetary and Satellite Motion Mathematics of Satellite Motion The motion of objects are governed by Newton's laws. The same simple laws which govern the motion of objects on earth also extend to the heavens to govern the motion of planets, moons, and other satellites. The mathematics which describes a satellite's motion are the same mathematics presented for circular motion in

72. Satellite - Wikipedia, The Free Encyclopedia In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial http://en.wikipedia.org/wiki/Satellite

Satellite From Wikipedia, the free encyclopedia Jump to: navigation search This article needs additional citations for verification Please help improve this article by adding reliable references . Unsourced material may be challenged and removed. (August 2007) For other uses, see Satellite (disambiguation) A full size model of the Earth observation satellite ERS 2 In the context of spaceflight , a satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon Contents History History of artificial satellites Space Surveillance Network Non-Military Satellite Services ... edit History The first known fictional depiction of a satellite being launched into orbit is a short story by Edward Everett Hale The Brick Moon . The story was serialized in The Atlantic Monthly , starting in 1869. The idea surfaces again in Jules Verne 's The Begum's Millions In 1903 Konstantin Tsiolkovsky (1857–1935) published Исследование Ð¼Ð¸Ñ€Ð¾Ð²Ñ‹Ñ Ð¿Ñ€Ð¾ÑÑ‚Ñ€Ð°Ð½ÑÑ‚Ð² реактивными приборами ( The Exploration of Cosmic Space by Means of Reaction Devices ), which is the first academic treatise on the use of rocketry to launch

73. AMSAT - The Radio Amateur Satellite Corporation AMSAT is a worldwide group of Amateur Radio Operators who share an active interest in building, launching and then communicating with each other through http://www.amsat.org/

850 Sligo Ave. Suite 600 Silver Spring, MD 20910 The Radio Amateur Satellite Corporation Launch Pad Navigator Sat Status Keps ... Return AMSAT Site Menu Site Quick Reference: Select a Topic... 2005 Space Symposium 2005-2006 AMSAT Leadership 2006 AMSAT Board Candidates 9600 Baud TNC Information About AMSAT About AMSAT About Session Cookies Amateur Radio Satellite Frequencies Amateur Satellite FAQ Amateur Satellite Summary Amps and Preamps AMSAT International Partners AMSAT Video News AMSAT-BB and SAREX on the Web AMSAT-NA Microsats ANS News Search ANS Web News AO-27 and UO-14: Answers to Frequently-Asked AO-51 Link Budget Calculations AO-51 on an HT AO-51 Schedule AO-51 Summary AO-51 Telemetry Software Macintosh AO-51 Telemetry Software Windows APRS Information Archive Navigator Archived Articles on Amateur Area 51 Login Area Coordinators ARISS Resources ARISS Update Article Navigator Articles by W6SHP Articles of Incorporation Awards and Activities Awards for Satellite Operators Board Candidate Statements Browser Information Bylaws Calendar of Events Certificate of Incorporation Contact AMSAT Contacting AMSAT Corportate Documents Cubesate Launch Information Dayton 2005 Follow Up Dayton 2005 Presentations Dayton Hamvention Downloadable Software Eagle Design Review Photos Eagle Fall 2004 Report Eagle Launch Campaign Echo FAQ Echo Integration Echo Launch Photos Echo Operations Echo Project Page Echo Telemetry EchoLink Conference Email List FAQ Fair Usage Statement Field Day Competition Field Operations

74. View From Satellite Features a simulated display of what Earth currently would look like seen from a spacecraft. Includes selection from an extensive list of spacecraft in http://www.fourmilab.ch/earthview/satellite.html

View from Satellite To view the Earth as currently seen from a satellite in Earth orbit, choose the satellite from the list below and press the "View Earth from Satellite" button. The satellite database is updated regularly but may not reflect the current position of satellites, such as the U.S. Space Shuttle, which maneuver frequently after reaching orbit. Satellite: AAP-1 (GE-1A) AAU CUBESAT AAU CUBESAT [-] ABRIXAS ACRIMSAT ACTS ADEOS ADEOS II ADEOS-2 AFRISTAR AGILA 2 AIM AKARI (ASTRO-F) ALOS (DAICHI) ALOUETTE 1 (S-27) ALSAT 1 AMAZONAS AMC 18 AMC-1 (GE-1) AMC-10 (GE-10) AMC-11 (GE-11) AMC-12 AMC-15 AMC-16 AMC-2 (GE-2) AMC-23 AMC-3 (GE-3) AMC-4 (GE-4) AMC-5 (GE-5) AMC-6 (GE-6) AMC-7 (GE-7) AMC-8 (GE-8) AMC-9 (GE-12) AMOS AMOS 2 AMSC 1 ANATOLIA 1 (PALAPA C1) ANIK E1 ANIK F1 ANIK F1R (WAAS/PRN 138) ANIK F2 ANIK F3 AO-10 [-] AO-16 [P] AO-21 [-] AO-24 [-] AO-27 [+] AO-40 [-] AO-49 [-] AO-5 [-] AO-51 [+] AO-6 [-] AO-7 [P] AO-8 [-] AOR-E (EGNOS/PRN 120) APRIZESAT 1 (LATINSAT C) APRIZESAT 2 (LATINSAT D) APSTAR 1 APSTAR 1A APSTAR 5 (TELSTAR 18) APSTAR 6 AQUA ARABSAT 2B ARABSAT 3A ARGOS ARIANE 40 R/B ARIANE 40+ R/B ARIANE 5 R/B ARIRANG 2 (KOMPSAT-2) ARISS [+] ARTEMIS (EGNOS/PRN 124) ASIASAT 1 ASIASAT 2 ASIASAT 3S ASIASAT 4 ASIASTAR ASTEX 1 ASTRA 1A ASTRA 1C ASTRA 1D ASTRA 1E ASTRA 1F ASTRA 1G ASTRA 1H ASTRA 1KR ASTRA 1L ASTRA 2A ASTRA 2B ASTRA 2C ASTRA 2D ASTRA 3A ASTRID 2 ASTRO-F (AKARI) ATLANTIC BIRD 1 ATLANTIC BIRD 2 ATLANTIC BIRD 3 ATLANTIC BIRD 4 ATLAS 5 CENTAUR R/B ATLAS CENTAUR 2

75. Satellite: Definition, Synonyms And Much More From Answers.com satellite ( ) n. Astronomy. A celestial body that orbits a planet; a moon. Aerospace. An object launched to orbit Earth or another celestial body. http://www.answers.com/topic/satellite

BodyLoad('s'); On this page: Select Article Dictionary Sci-Tech Encycl. Modern Science Thesaurus US Military Dict. Britannica Concise Science Dictionary Veterinary Politics Word Tutor Wikipedia Misspellings Translations Best of Web Or search: - The Web - Images - News - Blogs - Shopping Dictionary satellite săt l-īt Also from Answers.com... Asthma How to prevent and treat an asthma attack. document.getElementById("videoBox").style.display="block" n. Astronomy. A celestial body that orbits a planet; a moon. Aerospace. An object launched to orbit Earth or another celestial body. A nation dominated politically and economically by another nation. An urban or suburban community located near a big city. One who attends a powerful dignitary; a subordinate. A subservient follower; a sycophant. Genetics. A short segment of a chromosome separated from the rest by a constriction, typically associated with the formation of a nucleolus. Microbiology. A colony of microorganisms whose growth in culture medium is enhanced by certain substances produced by another colony in its proximity. [French, hanger-on, hireling, from Old French, from Latin

76. GEOSTATIONARY SATELLITE SERVER Satellite Images such as infrared and water vapor. http://www.goes.noaa.gov/

Tropical Atlantic/Pacific Severe Storm Sectors GOES Full Disk Color Enhanced Imagery ... NESDIS Home Page East CONUS West CONUS Puerto Rico Alaska Hawaii Infrared Visible Water Vapor Infrared Visible Water Vapor Infrared Visible Water Vapor Infrared Visible Water Vapor Infrared Visible Water Vapor Applet loop symbol - Web based animation applet with user control options MPEG loop symbol - MPEG animation Search OSDPD Comments? We welcome them! Not getting the latest image, click here for help FAQ's here This server and data are not considered "operational" . We do not guarantee availability or timely delivery of data and this web site should not be used to support operational observation, forecasting, emergency, or disaster mitigation operations, either public or private. We also do not provide weather forecasts at this site, that is the mission of the National Weather Service , please contact them for forecast information. Information about this server The options on the left will take you to a specific set of sectors. Each small image from this web site is a 'clickable' link to a larger image. You can view retrospective imagery, for the past 21 days, by selecting one of the following choices on the left side of the screen.

77. Latest Satellite Imagery Unless otherwise noted, the images linked from this page are located on servers at the Satellite Services Division of the National Environmental Satellite, http://www.nhc.noaa.gov/satellite.shtml

weather.gov Home News Organization Search Search by city or zip code. Press enter or select the go button to submit request Local forecast by "City, St" or "ZIP" Text-only version Learn More Satellite Imagery FAQ The GOES Imager Tutorial More Image Sites GOES-East/West Full Disk and Composite Images ... Sector Real-Time Geostationary and Polar Imagery Atlantic and Gulf of Mexico East and Central Pacific ... Help Latest Satellite Imagery PLEASE NOTE: These images are not from the NHC website. Unless otherwise noted, the images linked from this page are located on servers at the Satellite Services Division of the National Environmental Satellite, Data, and Information Service . Direct all questions and comments regarding these images to the NESDIS Satellite Services Division at SSDWebmaster@noaa.gov and SABWebmaster@noaa.gov The GOES Imager Tutorial and the Satellite Imagery FAQ are available to answer your questions on these images. General Satellite Status Messages, including Outages SSD Tropical Satellite Imagery System Status GOES-East/West Hurricane Sectors Atlantic Visible Loop IR Loop ... Loop East Pacific Visible Loop IR Loop ... Loop Gulf of Mexico Visible Loop IR Loop ... Loop East Coast US Visible Loop IR Loop ... Loop GOES Floater Imagery Atlantic Floater 1 Not Active Visible Image Loop Infrared Image Loop Shortwave IR Image Loop Dvorak IR Image Loop Water Vapor Image Loop Atlantic Floater 2 Not Active Visible Image Loop Infrared Image Loop Shortwave IR Image Loop Dvorak IR Image Loop Water Vapor Image Loop Atlantic Floater 3

78. National Infrared Weather Satellite And Lightning Tracker National JMA weather satellite animation and GPATS lightning tracker. Long satellite loops using MTSAT data that display overlays of lightning, http://www.weatherzone.com.au/satellite.jsp

79. Artificial Satellite - MSN Encarta Artificial Satellite, any object purposely placed into orbit around Earth, other planets, or the Sun. Since the launching of the first artificial satellite http://encarta.msn.com/encyclopedia_761551926/Artificial_Satellite.html

var s_account="msnportalencarta"; MSN home Mail My MSN Sign in ... more Hotmail Messenger My MSN MSN Directory Air Tickets/Travel Autos City Guides Election 2008 ... More Additional Reference Materials Thesaurus Translations Multimedia Other Resources Education Resources Math Help Foreign Language Help Project Planner ... Help Editors' Picks Great books about your topic, Artificial Satellite , selected by Encarta editors Related Items Space Exploration space telescopes more... Encarta Search Search Encarta about Artificial Satellite Also on Encarta Secret students What colleges really want Famous misquotes quiz Advertisement Artificial Satellite Encyclopedia Article Find Print E-mail Blog It Multimedia 7 items Article Outline Introduction Types of Satellites Satellite Launches Operations in Space ... The First Satellites I Introduction Print this section Artificial Satellite , any object purposely placed into orbit around Earth, other planets, or the Sun. Since the launching of the first artificial satellite in 1957, thousands of these “man-made moons” have been rocketed into Earth orbit. Today, artificial satellites play key roles in the communications industry, in military intelligence, and in the scientific study of both Earth and outer space. See also Space Exploration II Types of Satellites Print this section Engineers have developed many kinds of satellites, each designed to serve a specific purpose or mission. For instance the telecommunications and broadcasting industries use communications satellites to carry radio, television, and telephone signals over long distances without the need for cables or microwave relays. Navigational satellites pinpoint the location of objects on Earth, while weather satellites help meteorologists forecast the weather (

80. HobbySpace - Satellite Watching I Spy Amateur satellite spotters can track everything government spymasters blast into orbit. Except the stealth bird codenamed Misty. http://www.hobbyspace.com/SatWatching/

Home Tech Culture Activities ... Site Info Satellite Observing Sections Archive Beginners Education Ground Photos ... Online Tracking Related Topics Astronomy Eyes In The Sky Offline Software Online Software ... TVRO Web HobbySpace Satellite Watching Our own stars in view... Observe satellites with the naked eye Photograph shuttles with your telescope Glimpse the dramatic Iridium flares Watch the Space Station Construction A Visit from Atlantis Clay Center Observatory , Dexter and Southfield Schools. Astronomy Picture of the Day, June.28.07 . See also Station Watching - Sky and Telescope - June.28.07 Several hundred spacecraft now orbit around our planet. Many of those in low earth orbit (LEO) are bright enough to be seen by the naked eye as they streak across the night sky. Some of the largest spacecraft, such as the shuttle and the Mir space station, have even been

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