Tracking 17155 objects as of 28-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
LANDSAT 8 The Landsat Data Continuity Mission (LDCM), a collaboration between NASA and the U. February 11, 2013
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
LANDSAT 7 April 15, 1999
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
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
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
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
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
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
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
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
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
JAS 2 (FO-29) JAS-2 was successfully launched on August 17, 1996, by H-II rocket No. August 17, 1996
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
HST The Hubble Space Telescope (HST) was the first and flagship mission of NASA's Great Observatories program. April 24, 1990
WORLDVIEW 2 Operating at an altitude of 770 kilometers, WORLDVIEW 2 will enable DigitalGlobe to offer half-meter panchromatic resolution and 1. October 8, 2009
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
HIMAWARI 1 (GMS 1) July 14, 1977
KMS 3-2 KWANGMYONGSONG 3 is a North Korean Earth observation satellite, which according to the DPRK is designed for weather forecast purposes, and whose launch is widely portrayed in the West to be a veiled ballistic missile test. December 12, 2012
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
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
RESOURCESAT 2 RESOURCESAT 2 will help officials respond to natural disasters, monitor agriculture and manage urban and rural roads and infrastructure. April 20, 2011
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
NPP NASA launched the National Polar-orbiting Operational Environmental Satellite System Preparatory Project, or NPP, on Oct. October 28, 2011
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
VENESAT-1 Under an agreement signed in November 2005, the China Great Wall Industry Corp was contracted to design, manufacture, test and put into orbit the VENESAT-1 for Venezuela. October 29, 2008
SENTINEL 1A The mission is the first of six families of dedicated missions that will make up the core of Europe's Copernicus environmental monitoring network. April 3, 2014
IRIDIUM 6 May 5, 1997
CBERS-4 CBERS-4 (China–Brazil Earth Resources Satellite 4), also known as Ziyuan I-04 or Ziyuan 1E, is a remote sensing satellite intended for operation as part of the China–Brazil Earth Resources Satellite programme between the China Centre for Resources Satellite Data and Application and Brazil's National Institute for Space Research. December 7, 2014
COSMOS 2504 COSMOS 2504 is a secretive Russian military satellite. March 31, 2015
MICROMAS November 20, 1998
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
FLOCK 1B-12 November 20, 1998
IRIDIUM 10 66 satellite constellation with 13 spares; 15-20 ground stations with master control complex in Landsdowne, VA; backup in Italy, third engineering center in Chandler, AZ; Filed for Chapter 11 in 2000; started to let system deorbit. June 18, 1997
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
IRIDIUM 32 September 14, 1997
IRIDIUM 51 March 25, 1998
IRIDIUM 77 September 8, 1998
CZ-3B DEB This is satellite debris April 29, 2012
IRIDIUM 54 February 18, 1998
IRIDIUM 69 May 2, 1998
INMARSAT 4-F1 Nearly the size of a double-decker bus; more than 600 channels. March 11, 2005
CFESAT A 350-pound (159-kilogram) satellite built for the Los Alamos National Laboratory to test a series of new technologies, including inflatable boom antennas, a new power supply and a prototype supercomputer designed to process data onboard rather than sending raw information directly to Earth March 9, 2007
ASIASAT 3S 28 C-band, 16 Ku-band; broadcasting, internet services, multimedia, telecommunications March 21, 1999
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
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