Results 21 to 30 of about 4,346 (251)
Design of Novel Laser Crosslink Systems Using Nanosatellites in Formation Flying: The VISION
Aerospace, 2022 With growth in data volume from space missions, interest in laser communications has increased, owing to their importance for high-speed data transfer in the commercial and defense fields, spaceborne remote sensing, and surveillance.
Geuk-Nam Kim +10 more
doaj +1 more source
The Earth-Moon Transfer Trajectory Design and Analysis using Intermediate Loop Orbits [PDF]
Journal of Astronomy and Space Sciences, 2009 Various Earth-Moon transfer trajectories are designed and analyzed to prepare the future Korea's Lunar missions. Minimum fuel trajectory solutions are obtained for the departure year of 2017, 2020, 2022, and every required mission phases are analyzed ...
Young-Joo Song +4 more
doaj +1 more source
Micro-to-Macro : astrodynamics at extremes of length-scale [PDF]
, 2011 This paper investigates astrodynamics at extremes of length-scale, ranging from swarms of future ‘smart dust’ devices to the capture and utilisation of small near Earth asteroids.
Colombo, Camilla +6 more
core +6 more sources
Unscented KALMAN Filtering for Spacecraft Attitude and Rate Determination Using Magnetometer [PDF]
Journal of Astronomy and Space Sciences, 2009 An Unscented Kalman Filter (UKF) for estimation of the attitude and rate of a spacecraft using only magnetometer vector measurement is developed. The attitude dynamics used in the estimation is the nonlinear Euler`s rotational equation which is augmented
Sung-Woo Kim +3 more
doaj +1 more source
Journal of Aerospace Information Systems, 2017 Pierluigi Di Lizia, Mauro Massari
exaly +2 more sources
Stellar Source Selections for Image Validation of Earth Observation Satellite [PDF]
Journal of Astronomy and Space Sciences, 2011 A method of stellar source selection for validating the quality of image is investigated for a low Earth orbit optical remote sensing satellite. Image performance of the optical payload needs to be validated after its launch into orbit.
Jiwoong Yu +4 more
doaj +1 more source
Bridging the Basilisk Astrodynamics Framework with ROS 2 for Modular Spacecraft Simulation and Hardware Integration [PDF]
2025 International Conference on Space Robotics (iSpaRo)Integrating high-fidelity spacecraft simulators with modular robotics frameworks remains a challenge for autonomy development. This paper presents a lightweight, open-source communication bridge between the Basilisk astro-dynamics simulator and the Robot
Elias Krantz +4 more
semanticscholar +1 more source
Geophysical Research Letters, Volume 50, Issue 17, 16 September 2023., 2023 Abstract Significant imbalances in terrestrial water storage (TWS) and severe drought have been observed around the world as a consequence of climate changes. Improving our ability to monitor TWS and drought is critical for water‐resource management and water‐deficit estimation.
Shuo Zhang +4 more
wiley +1 more source
Optimal Design of Satellite Constellation Korean Peninsula Regions [PDF]
Journal of Astronomy and Space Sciences, 2008 Designing satellite constellations providing partial coverage of certain regions becomes more important as small low-altitude satellites receives an increasing attention due to its cost-effectiveness analysis.
Nam-Kyun Kim +3 more
doaj +1 more source
Gas-surface interactions modelling influence on satellite aerodynamics and thermosphere mass density
Journal of Space Weather and Space Climate, 2021 The satellite acceleration data from the CHAMP, GRACE, GOCE, and Swarm missions provide detailed information on the thermosphere density over the last two decades.
March Günther +5 more
doaj +1 more source