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Dr. rer. nat. Birgit Ritter
SpaceLife Doctoral Candidate 2009 - 2013

Ritter B (2013) The Mobile Dosimetric Telescope - A Small Active Dosimeter for the Application in Space – Development, Calibration and Measurements – Dissertation (Dr. rer. nat.), Institute of Experim...
Related Topics: Astronomy Astrophysics

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Vesta is the third largest, and second-most massive asteroid in the main belt, having a mean diameter of about 525 km. Vesta orbits the Sun at a distance of 350 million kilometers and rotates once aro...
Related Topics: Astronomy Lunar and Planetary Science and Exploration

Software test and software verification

The verification of the software is an important task in every software development. The appropriate fraction of the available resources to be allocated to this task depends on the risk caused by the ...
Related Topics: Astronomy

13.02.2012 - Vesta’s surface at high resolution: dominated by impact craters

In this Dawn FC (framing camera) image a large number of craters, formed by collisions into the surface of Vesta, are visible. The craters in this image range in diameter from less than 1 kilometer (0...
Related Topics: Astronomy Lunar and Planetary Science and Exploration

Mission Rosetta

The Rosetta mission, approved by the European Space Agency (ESA) in 1993 and launched in March 2004, is one of the most ambitious endeavors of European spaceflight. On its way to comet 67 P/Churyumov-...
Related Topics: Astronomy

01.02.2012 - Undulating terrain in Vesta’s southern hemisphere

This Dawn FC (framing camera) image shows some of the undulating terrain in Vesta’s southern hemisphere. This undulating terrain consists of linear, curving hills and depressions, which are most disti...
Related Topics: Astronomy Lunar and Planetary Science and Exploration


The second generation of EUTELSAT's trans-European network for fixed and mobile communications was served by upto six medium power satellites.
Related Topics: Astronomy
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