Small gems in spaceSeptember 21, 2009Micro-satellites MicroGEM for Earth monitoring A combination of small satellites can, with innovative methods, use the signals of the navigation satellite systems GPS and Galileo to significantly improve remote sensing of the System Earth. On 18.09.2009 the results of a scientific feasibility study on the first MicroGEM satellites, jointly carried out by the Technical University Berlin and the GFZ - German Research Centre for Geosciences, were presented in Berlin. The study was supported by the TSB Technology Foundation Berlin and the Helmholtz Centre GFZ. MicroGEM (Microsatellites for GNSS Earth Monitoring) represents satellites with a mass of approx.100 kilograms for monitoring of the Earth. Such small satellites represent a relatively cost effective platform for scientific instruments. GNSS stands for Global Navigation Satellite System, a compendium of the satellite navigation system GPS and, in future, Galileo. With the GFZ-satellite missions CHAMP (CHAllenging Minisatellite Payload) and GRACE (Gravity Recovery And Climate Experiment) such, satellite-based innovative remote sensing technologies have been successfully employed during the past years. MicroGEM links in with these missions and will, for the first time, use the signals from the future Galileo-satellites for the GNSS-supported atmospheric and ionospheric remote sensing on a global scale. Thus, significant improvements in his method can be expected. In addition GNSS-signals for the remote sensing of ocean and ice surface will be employed for the first time. The particular technological challenge of MicroGEM lies in the fact that this small satellite mission shall serve as a predecessor for future multi-satellite systems with scientific GNSS-receivers as satellite payload. With such constellations the number of measurements can be considerable increased and an improved global coverage can be achieved. In close cooperation between scientific institutes and regional industry the foundation has been laid for a project whose name can also be translated as "Small Gem". The MicroGEM-Project brings together proven technique with innovation in a way which allows for new scientific results to be obtained at minimum technological risk. Work to date has clearly shown that available aerospace expertise in science and industry in the Region of Berlin/Brandenburg can, in close cooperation, be used very effectively and successfully. Helmholtz Association of German Research Centres |
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| Related Navigation Satellite Current Events and Navigation Satellite News Articles Galileo to support global search and rescue The detection of emergency beacons will be greatly improved by the introduction of Europe's satellite positioning system, Galileo. The Galileo satellites will carry transponders to relay distress signals to search and rescue organisations. Cornell sleuths crack secret codes of Europe's Galileo satellite Members of Cornell's Global Positioning System (GPS) Laboratory have cracked the so-called pseudo random number (PRN) codes of Europe's first global navigation satellite, despite efforts to keep the codes secret. SSTL make it into Britain’s Top 100 technology companies 30 September 2003 Guildford-based space company, Surrey Satellite Technology Ltd, have achieved a placing in The Sunday Times Tech Track 100, which recognises Britain’s fastest growing technology companies. SSTL’s sales have grown 50% a year from £5.4 million in 2000 to £12.2m in 2002. Compiled by Oxford-based research organisation, Fast Track, the listing tracks Britain’s most dynamic unquoted companies. SSTL’s Managing Director, Dr. Jeffrey Ward, commented on the result: “SSTL led the way in developing affordable satellite systems. Now we are reaping the benefits of a growing marketplace and a world-leading brand. We are confidently expecting to re Communication satellites telling us where they are Communication satellites will eventually be able to tell us where they are using new on board GNSS (Global Navigation Satellite System) receivers that are being developed in a project funded by ESA. The project is nearing completion of its first phase. It focuses on designing receivers to pick up the additional L2C (L2 Civilian) and L5 frequencies that will come from the next generation of GPS satellites in 2010. The development aims to make multi-frequency receivers available for both Geo-Stationary and Low-Earth Orbit satellites. The more frequencies available to a receiver the better it is for navigation accuracy. The receivers being developed will be used on communications satellites Safer navigation means more helicopters saving lives Helicopter Emergency Services (HEMS) deal with emergency evacuations and inter-hospital transport across Europe. Improved navigation information from EGNOS could mean fewer cancelled flights due to adverse weather. Although most modern helicopters have Instrumental Flight Rules (IFR) capability this is not used because IFR are not adapted to helicopter flight characteristics. As a result almost all medical operations are still performed under Visual Flight Rules (VFR). When visibility is reduced, as in bad weather, the use of VFR creates a risk factor in helicopter medical operations. Any helicopter landing system must support steep glide slopes and multiple legs but needs little or no gr A step closer to safer aviation in Africa ESA PR 12-2003. Between 24 and 26 February, a number of trial flights into Dakar using the EGNOS (European Global Navigation Overlay Service) Test Bed system were carried out to show how the planned provision of Global Navigation Satellite System (GNSS) services over Central Africa could be implemented. ASECNA (Agence pour la sécurité de la navigation aérienne en ASECNA (Agence pour la SECurité de la Navigation Aérienne en Afrique et ' Madagascar) has worked with the European Space Agency, the European Commission and various other European partners to make these trials possible. The Africa and Indian Ocean (AFI) States have adopted a three-phase strateg Boosting Opportunities for Europe in Space: EU Commission Presents Outline and Launches Broad Consultation on European Space Policy "Mankind's Ultimate Frontier", space, is a timeless source of dreams - and a major strategic and industrial challenge for Europe. Today in Brussels European Research Commissioner Philippe Busquin presented the Green Paper on EU Space Policy. The Paper, prepared by the European Commission in co-operation with the European Space Agency (ESA), looks into Europe's assets and weaknesses in this sector. The report tackles key issues such as EU's independent access to space, the need to achieve scientific excellence in this field, the industrial and technological base, relevant markets, human resources, the legal and institutional framework, international co-operation, and environmental an MSG - More than just the weather Some 36,000 kilometres above the coast of West Africa, a new satellite will soon take up a geo-stationary orbit, and train its powerful imager on the continents below. This is Meteosat Second Generation (MSG), the new wave of Meteosat weather satellites. MSG has been developed through the close cooperation between the European Space Agency (ESA) and EUMETSAT, the European Organisation for the Exploitation of Meteorological Satellites. The combination of ESA`s space technology development skills and EUMETSAT`s meteorological expertise and long-term operational perspective has resulted in this new satellite system set to provide an essential service for at least the next 12 years. MSG is not j More Navigation Satellite Current Events and Navigation Satellite News Articles |
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