S. Flegel

ORCID: 0000-0003-0616-3233
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About
Contact & Profiles
Research Areas
  • Space Satellite Systems and Control
  • Astro and Planetary Science
  • Spacecraft Design and Technology
  • Planetary Science and Exploration
  • Space exploration and regulation
  • Laser-induced spectroscopy and plasma
  • High-Velocity Impact and Material Behavior
  • Ionosphere and magnetosphere dynamics
  • Spacecraft Dynamics and Control
  • Scientific Measurement and Uncertainty Evaluation
  • Nuclear and radioactivity studies
  • Solar and Space Plasma Dynamics
  • Advanced SAR Imaging Techniques
  • Radar Systems and Signal Processing
  • Graphite, nuclear technology, radiation studies
  • Space Science and Extraterrestrial Life
  • GNSS positioning and interference
  • Radioactive contamination and transfer
  • Statistical and numerical algorithms
  • Antenna Design and Optimization
  • Radio Astronomy Observations and Technology
  • Nuclear Physics and Applications
  • Environmental and Social Impact Assessments
  • Optical Systems and Laser Technology
  • Energetic Materials and Combustion

Idaho National Laboratory
2024

European Space Operations Centre
2021

Robert Bosch (Germany)
2021

Mount Stromlo Observatory
2018-2020

RMIT University
2018

Fraunhofer Institute for High Frequency Physics and Radar Techniques
2015

Technische Universität Braunschweig
2006-2012

Brunswick (United States)
2006

The breakup of Hitomi (ASTRO-H) on 26 March 2016 is analysed. Debris from the fragmentation used to estimate time event by propagating backwards and estimating close approach with parent object. Based this method, predicted have occurred at approximately 01:42 UTC 2016. Gaussian variation parameters equations based instantaneous orbits are solved gain additional insight into on-orbit position test an alternate determining epoch location. A conjunction analysis carried out between all...

10.1186/s40623-017-0633-3 article EN cc-by Earth Planets and Space 2017-04-18

Abstract Two fundamentally different approaches of determining normality the probability density function state estimation error are compared by application to a range test cases. The first method is Henze-Zirkler test, which operates on random particle sample. variability its result quantified. Using this method, departure from has been found occur in three stages detailed. second compares offset whitened space predicted covariance mean obtained unscented transform. This much more efficient...

10.1007/s40295-019-00201-3 article EN cc-by The Journal of the Astronautical Sciences 2019-12-06
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