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This chapter outlines GNSS receiver requirements driven by navigation needs identified from applications in future ESA Low Earth Observation (LEO) satellites. In the domain of operational EO, the GMES mission Sentinel-3 (S3) poses the most demanding positioning requirements in real-time in order to aid the altimeter tracking and also in on-ground post-processing for POD. The Sentinel-1 (S1) navigation...
The European Space Agency (ESA) is preparing candidates for the next Earth Explorer Core mission with the aim to select the 7th Earth Explorer mission to be launched towards the end of this decade. Earth Explorers are the backbone of the science and research element of ESA's Living Planet Programme, providing an important contribution to the global endeavor of understanding the Earth's system, particularly...
ESA Earth Explorer missions are driven by the response of the scientific community to periodic calls for the new mission proposals. The last such calls were in March 2005 and October 2009, respectively, with the ultimate aim to select and develop the 7th (EE7) and 8th (EE8) Earth Explorer missions, to be launched within this decade. As a consequence of these calls, several candidate EE7 and EE8 missions...
The European Space Agency (ESA) is preparing candidates for the next Earth Explorer Core mission with the aim to select the 7th mission to be launched. Earth Explorers are the backbone of the science and research element of ESA's Living Planet Programme, providing an important contribution to the global endeavour of understanding the Earth system. Six candidate missions were originally selected and...
The European Space Agency (ESA) is preparing candidates for the 7th Earth Explorer Core mission with the aim to select one of them to be launched towards the end of this decade. Earth Explorers are the backbone of the science and research element of ESA's Living Planet Programme, providing an important contribution to the global endeavour of understanding the Earth system, particularly in view of...
This paper presents the key elements of the next generation of miniaturised GNSS space receivers compatible with the new and improved GNSS signals from Galileo and modernized GPS. A quick review of applications like Precise Orbit Determination (POD) and Radio Occultation (RO) is provided together with the performance achieved in current satellites like MetOp and GOCE and that expected in future ESA...
The European Space Agency (ESA) released a Call for Proposals for the next Earth Explorer Core Mission in March 2005, with the aim to select the 7th Earth Explorer (EE-7) mission for launch in the next decade. Twenty-four proposals were received and subject to scientific and technical assessment. Six candidate missions were selected and further investigated in the preliminary feasibility studies (Phase...
In the frame of the Global Monitoring for Environment and Security programme (GMES) jointly implemented by ESA and EC, ESA is developing the Sentinel-2 system, providing globally with systematic acquisition high resolution (10-20 m) optical observations with a high revisit tailored towards the needs of operational land services. This system will ensure data continuity of SPOT and Landsat satellite...
This paper describes the realization of a generic simulator for formation flying satellites, and the design and application of embedded model control (EMC) to the spacecraft control, as potentially applicable to a constellation of drag-free satellites. They can be employed for scientific purposes: it is presented the satellite-satellite interferometry mission for the measurement of the Earth's gravitational...
This paper is an introduction to the following articles in the scope of quantum mechanics for space study initiated by ESA and lead by ONERA. The context of quantum mechanics for space is summarised, and the fields under development are briefly introduced. Technological applications of quantum mechanics in space are explored and some tests of quantum mechanics are outlined. We also give a brief presentation...
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