A5016194197- Planetary Science and Exploration
- Astro and Planetary Science
- Space Science and Extraterrestrial Life
- Space Satellite Systems and Control
- Space Exploration and Technology
- Geophysics and Gravity Measurements
- Spaceflight effects on biology
- Stellar, planetary, and galactic studies
- Space exploration and regulation
- Isotope Analysis in Ecology
- Inertial Sensor and Navigation
- Geomagnetism and Paleomagnetism Studies
- Spacecraft Design and Technology
- Spacecraft and Cryogenic Technologies
- Geology and Paleoclimatology Research
- Astronomical Observations and Instrumentation
- Radio Astronomy Observations and Technology
- GNSS positioning and interference
- Scientific Research and Discoveries
- Spacecraft Dynamics and Control
- Cosmology and Gravitation Theories
- Ionosphere and magnetosphere dynamics
- Atmospheric aerosols and clouds
- Robotics and Sensor-Based Localization
- Magnetic and Electromagnetic Effects
Universität der Bundeswehr München
2011-2024
Bayer (Germany)
2021
Southwest Research Institute
2016
Stanford University
2016
National Experimental University of the Armed Forces
2016
Japan External Trade Organization
2014
San Jose State University
2007
New Horizons' views of Pluto The flyby and its moon Charon by the Horizons spacecraft generated news coverage around world. Now Stern et al. report first scientific results from high-speed encounter. surface is surprisingly diverse, with large regions differing brightness composition. There ample evidence for ongoing rich geological processes that act to sculpt surface. Charon's similarly complex, numerous relief structures varied coloration. Pluto's atmosphere extensive but less dense than...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
The Kuiper Belt is a distant region of the Solar System. On 1 January 2019, New Horizons spacecraft flew close to (486958) 2014 MU69, Cold Classical Object, class objects that have never been heated by Sun and are therefore well preserved since their formation. Here we describe initial results from these encounter observations. MU69 bi-lobed contact binary with flattened shape, discrete geological units, noticeable albedo heterogeneity. However, there little surface color compositional No...
Asteroid 21 Lutetia was approached by the Rosetta spacecraft on 10 July 2010. The additional Doppler shift of radio signals imposed Lutetia's gravitational perturbation flyby trajectory were used to determine mass asteroid. Calibrating and correcting for all contributions not associated with Lutetia, a least-squares fit residual frequency observations from 4 hours before 6 after closest approach yields (1.700 ± 0.017) × 10(18) kilograms. Using volume model determined Optical, Spectroscopic,...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
Artificial intelligence (AI), particularly machine learning (ML), is widely applied in fields such as medicine, autonomous driving, and manufacturing. Over time, ML has also seen increasing use space geosciences, where its algorithms hold the potential to enhance orbit prediction determination (OD) by utilizing measurement data. However, models like Neural Networks (ANNs) are limited problems with abundant data often considered "black boxes", their predictions lack interpretability a...
Small bodies such as asteroids, comets and moons are primary targets for space exploration. To test guidance, navigation control algorithms an accurate model of the target’s gravity field is crucial mission success. However, creating near body’s surface a challenging task due to often highly irregular shape limited information about internal mass distribution.This study presents Convolutional Neural Network (CNN) determine density distribution from accelerations at using...
In recent years, the field of space situational awareness (SSA) has gained increasing attention, driven by rapid rise in both active satellites and orbital debris. Therefore, being able to predict orbit a resident object (RSO) as accurately possible is more critical than ever order reduce collision risks preserve environment. However, incomplete knowledge debris geometry, uncertain characteristics, or simplified force models can cause prediction errors which exceed orders several kilometers...
Illustration of a two-member constellation small spacecraft at Venus with crosslinks for radio occultations that can lead to global coverage high spatial and temporal resolutions. SummaryFrom Mercury the outer reaches solar system, past six decades have witnessed vast set discoveries utilizing science (RS) methods.For example, based on key gravitational evidence, sub-surface oceans been inferred Titan, Enceladus, Europa, where potential future missions may search life.
An increasing number of small extraterrestrial objects in the Solar System are found to have bilobed shapes, which could resulted from merger two independently formed bodies. It is both natural and justified treat lobes separately account for, or discern, any potential difference between them (Andert, et al., 2015). Gravity provides a crucial constraint on interior mass distribution body among key scientific objectives most space missions. Most often, gravitational field modeled as spherical...
Asteroids and moons are promising targets for physical space exploration. The use of physically-based simulations within a virtual environment (deep) missions can significantly benefit the testing validation guidance, navigation, control algorithms. This approach offers advantages in terms cost time efficiency. Especially orbit propagation landing maneuvers, information about gravitational field is crucial. However, several factors contribute to complexity this task, such as limited...
AbstractIn recent years, the integration of artificial intelligence (AI), especially machine learning (ML), has found entrance in various fields, including industry, medicine, self-driving cars and daily life. However, application ML tools space science is still its early stages holds potential to complement traditional methods. This study investigates effectiveness algorithms, with a focus on Physics Informed Neural Networks (PINNs) expand or support classical methods orbit propagation...
AbstractAccurate orbit determination is essential for mission planning, execution, and maintaining space situational awareness, ensuring the success of missions effective management traffic. This particularly critical deep missions, where precise navigation trajectory estimation are vital conducting scientific research. While traditional numerical methods prediction have proven to be robust accurate, they can limited when faced with dynamic parameters or unmodeled forces. Integrating machine...
AbstractSeveral space missions like Mars Global Surveyor, Express and Phobos 2 have already visited the Martian moon performed measurements regarding its geophysical properties. Those shown that it has a low average density (1861±11)kgm-3 [1], indicating high proportion of porosity. Comparison with other objects is challenging task, as not entirely clear whether C-type or D-type asteroid. highly irregular shape, resembling heavily cratered The limited information about inner mass...