Tracking 17154 objects as of 31-July-2015
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This is "TOP 50" list of the most tracked satellites based on user activity for past 12 hours

Name Description Launched Action
SPACE STATION The International Space Station (ISS) is a joint project of five space agencies: the National Aeronautics and Space Administration (United States), the Russian Federal Space Agency (Russian Federation), the Japan Aerospace Exploration Agency (Japan), the Canadian Space Agency (Canada) and the European Space Agency (Europe). November 20, 1998
SES 1 SES 1 is a communications satellite designed to replace two aging spacecraft serving North America. April 24, 2010
DEIMOS 1 The Deimos 1 satellite will gather wide-angle, medium-resolution images with optical payloads able to see objects about 72 feet [22 m] across. July 29, 2009
GOES 15 GOES 15 (GOES-P) is an American weather satellite, which will form part of the Geostationary Operational Environmental Satellite (GOES) system operated by the US National Oceanic and Atmospheric Administration. March 4, 2010
NOAA 19 NOAA-19 is the fifth in a series of five Polar-orbiting Operational Environmental Satellites (POES) with advanced microwave sounding instruments that provide imaging and sounding capabilities. February 6, 2009
STAR ONE C4 STAR ONE C4 is a geostationary satellite that carries 48 Ku-band transponders for Embratel Star One, a Brazilian operator. July 15, 2015
NOAA 15 Polar-orbiting satellite; long-range weather forecasting; atmospheric and weather monitoring instruments; data stored on-board and transmitted over Fairbanks, AK and Wallops Island, VA. May 13, 1998
NOAA 18 Polar-orbiting satellite; long-range weather forecasting; atmospheric and weather monitoring instruments; data stored on-board and transmitted over Fairbanks, AK and Wallops Island, VA. May 20, 2005
STAR ONE C2 Star One C2 is a Brazilian geostationary communications satellite that was launched by an Ariane 5 ECA rocket from Kourou at 22:17 UT on 18 April 2008. April 18, 2008
PALAPA C2 30 C-band, 6 Ku-band; voice and vision communications to a large area bounded by Iran, Vlodivostok, Australia, and New Zealand. May 16, 1996
AQUA AQUA (EOS-PM1) is an afternoon equator-crossing platform which includes a suite of sensors designed to study the diurnal properties of cloud and aerosol radiative fluxes, cloud formation, and precipitation (MIMR, AIRS/AMSU-A/MHS, and MODIS-N) in conjunction with a wind scatterometer planned for the Japanese ADEOS-II spacecraft. May 4, 2002
SAUDISAT 1C SAUDISAT 1C (or SO-50, Saudi-OSCAR 50) carries several experiments, including a mode J FM amateur repeater experiment operating on 145. December 20, 2002
LANDSAT 8 The Landsat Data Continuity Mission (LDCM), a collaboration between NASA and the U. February 11, 2013
TERRA The Earth Observing System (EOS) is a science and observation program that will provide long-term (15-year) data sets for Earth system science in order to gain an understanding of the interactions between Earth's land, atmosphere, oceans, and biology. December 18, 1999
HST The Hubble Space Telescope (HST) was the first and flagship mission of NASA's Great Observatories program. April 24, 1990
LANDSAT 7 April 15, 1999
NAVSTAR 64 (USA 206) August 17, 2009
JAS 2 (FO-29) JAS-2 was successfully launched on August 17, 1996, by H-II rocket No. August 17, 1996
SWISSCUBE SWISSCUBE is Switzerland's first satellite and will try to detect a phenomenon known as airglow using an off-the-shelf sensor. September 23, 2009
ASTRA 2E ASTRA 2E, built by Astrium Satellites in France and based on the Eurostar E3000 platform, is designed to beam next-generation broadcast, direct-to-home and broadband services over Europe, the Middle East and Africa for a 15-year mission. September 29, 2013
FUNCUBE 1 (AO-73) FUNcube-1 is a complete educational single CubeSat project with the goal of enthusing and educating young people about radio, space, physics and electronics. November 21, 2013
VRSS-1 VRSS-1 is Venezuela's second satellite built by China, which launched a communications satellite named Venesat 1 in 2008. September 29, 2012
SENTINEL 2A SENTINEL 2A, together with the other Sentinels, is gathering data for Europe's Copernicus programme, which will provide accurate, timely & easily accessible information for environmental management, understanding climate change and assisting in disaster response. June 23, 2015
METOP-B METOP-B is a 9,005-pound (4,085-kg) spacecraft outfitted with eight instruments to survey clouds, winds, moisture, greenhouse gases, and other atmospheric conditions for at least five years. September 17, 2012
PLEIADES 1 Led by CNES, the French space agency, Pleiades 1 will collect high-resolution optical imagery for military and civilian users. December 17, 2011
NAVSTAR 71 (USA 256) August 2, 2014
PLEIADES 1B PLEIADES 1B rivals the imaging power of privately-owned spacecraft operated by GeoEye and DigitalGlobe, two firms providing commercial reconnaissance imagery to the U. December 2, 2012
ARTEMIS An 18-month rescue mission recovered the satellite; develop European capabilities in satellite communications; test new technologies; support development of European navigation system (EGNOS, c. July 12, 2001
METOP-A METOP-A is Europe's first polar-orbiting weather satellite and will give forecasters a new perspective on weather phenomena. October 19, 2006
SARAL SARAL is a 900-pound (408-kg) satellite equipped with a Ka-band altimeter to measure the height of ocean waves. February 25, 2013
NUSTAR NuSTAR is a small X-ray telescope, considered the first step in an ambitious low-cost mission to study supermassive black holes believed to be lurking at the cores of galaxies like Earth's Milky Way and to probe the creation of heavy elements in the cataclysmic death throes of massive stars. June 13, 2012
EXPRESS-AM5 Express AM5 provides digital television and radio broadcasting, telephone, video conferencing, data transmission and Internet services. December 26, 2013
NAVSTAR 62 (USA 201) The GPS 2R-19 spacecraft rode the three-stage rocket into a preliminary orbit stretching 11,000 miles at its highest point and 100 miles at its lowest, then separated from the booster 68 minutes after liftoff while flying over the western Pacific. March 15, 2008
MEASAT 2 Digital video and audio broadcasting, international and domestic VSAT and telecommunication services as well as high-speed Internet access; 6 C-band, 9 Ku-band; Malaysia and neighboring countries. November 13, 1996
NAVSTAR 55 (USA 178) NAVSTAR 55, also known as USA 178, and as GPS 2R-12, is an American navigational satellite in the GPS fleet that was launched from Cape Canaveral by a Delta 2 rocket at 22:54 UT on 23 June 2004. June 23, 2004
MICROMAS November 20, 1998
NAVSTAR 68 (USA 242) NAVSTAR 68 (USA 242) will become the fourth member with the latest enhancements to increase accuracy and security to populate the network since 2010. May 15, 2013
GENESIS 2 Genesis II is the second experimental pathfinder spacecraft designed to test and confirm systems for future manned commercial space modules planned by Las Vegas-based Bigelow Aerospace The privately-funded space station module was launched atop a Dnepr rocket at 8:02 a. June 28, 2007
NAVSTAR 54 (USA 177) Navstar 54, also known as USA 177 and as GPS 2R-11 is an American navigational satellite in the GPS fleet. March 20, 2004
FLOCK 1B-12 November 20, 1998
NPP NASA launched the National Polar-orbiting Operational Environmental Satellite System Preparatory Project, or NPP, on Oct. October 28, 2011
COSMOS 2499 May 23, 2014
SESAT 2 (EXPRESS AM-22) 12 of the 24 transponders are referred to as SESAT-2 (EUTELSAT); 26 C-band, 4 Ku-band. December 28, 2003
TELSTAR 12 (ORION 2) Voice and video communications to the Americas, Europe, and Africa October 19, 1999
TURKSAT 2A 32 Ku-band transponders; direct-to-home voice, video, and data transmissions to countries between central Europe and the Indian subcontinent. January 10, 2001
SIRIUS 2 SIRIUS 2, also known as SD-RADIO 2 is an American geosynchronous communications spacecraft that was launched by a Proton-K rocket from Baikonur at 09:44 UT. September 5, 2000
ECHOSTAR 17 ECHOSTAR 17, built by Space Systems/Loral, will expand high-speed broadband Internet capacity over North America for the HughesNet service operated by Hughes Network Systems, a subsidiary of EchoStar Corp. July 5, 2012
HAMSAT (VO-52) VUSat-OSCAR 52 (VO-52 HAMSAT) is a microsatellite for providing satellite based Amateur Radio Services to the national as well as the international community of Amateur Radio Operator ( HAM's). May 5, 2005
LES 9 Original purpose was "Air Force sponsored program in space communications"; nuclear-powered; circuits jam-resistant to operate in hostile environment. March 15, 1976
METEOR M2 METEOR M2 was designed to watch global weather, the ozone layer, the ocean surface temperature and ice conditions to facilitate shipping in polar regions and to monitor radiation environment in the near-Earth space. July 8, 2014