A Point-cloud Clustering & Tracking Algorithm for Radar InterferometryIn data mining, density-based clustering, which entails classifying datapoints according to their distributions in some space, is an essential method to extract information from large datasets. With…Magnus F Ivarsen, Jean-Pierre St-Maurice, Glenn C Hussey et al.·Jun 3, 2024SaveLearn
Modeling of Nitric Oxide Infrared radiative flux in lower thermosphere: a machine learning perspectiveNitric Oxide (NO) significantly impacts energy distribution and chemical processes in the mesosphere and lower thermosphere (MLT). During geomagnetic storms, a substantial influx of energy in the…Dayakrishna Nailwal, MV Sunil Krishna, Alok Kumar Ranjan et al.·May 30, 2024SaveLearn
Global Optimization for Trajectory Design via Invariant Manifolds in the Earth-Moon Circular Restricted Three-Body ProblemThis study addresses optimal impulsive trajectory design within the Circular Restricted Three-Body Problem (CR3BP), presenting a global optimization-based approach to identify minimum V…Flavio Tagliaferri, Emmanuel Blazquez, Giacomo Acciarini et al.·May 29, 2024SaveLearn
Stochastic Continuation of Trajectories in the Circular Restricted Three-Body Problem via Differential AlgebraNumerical continuation techniques are powerful tools that have been extensively used to identify particular solutions of nonlinear dynamical systems and enable trajectory design in chaotic…Giacomo Acciarini, Nicola Baresi, David J. B. Lloyd et al.·May 29, 2024SaveLearn
Breaking traditions: introducing a surrogate Primer Vector in non Keplerian dynamicsIn this study, we investigate trajectories involving multiple impulses within the framework of a generic spacecraft dynamics. Revisiting the age-old query of "How many impulses?", we present novel…Laurent Beauregard, Dario Izzo, Giacomo Acciarini·May 29, 2024SaveLearn
Identification of coupled Landau and anomalous resonances in space plasmasWave-particle resonance, a ubiquitous process in the plasma universe, occurs when resonant particles observe a constant wave phase to enable sustained energy transfer. Here, we present spacecraft…Jing-Huan Li, Xu-Zhi Zhou, Zhi-Yang Liu et al.·May 25, 2024SaveLearn
Flux rope modeling of the 2022 Sep 5 CME observed by Parker Solar Probe and Solar Orbiter from 0.07 to 0.69 auAs both Parker Solar Probe (PSP) and Solar Orbiter (SolO) reach heliocentric distances closer to the Sun, they present an exciting opportunity to study the structure of CMEs in the inner heliosphere.…Emma E. Davies, Hannah T. Rüdisser, Ute V. Amerstorfer et al.·May 17, 2024SaveLearn
Out-of-plane Parallel Current in the Diffusion Regions: The Interaction Between Diffusion Region Systems and their Impact on the Outer EDRDayside magnetic reconnection allows for the transfer of the solar wind's energy into Earth's magnetosphere. This process takes place in electron diffusion regions (EDRs) embedded in ion diffusion…Jason M. H. Beedle, Daniel J. Gershman, Vadim M. Uritsky et al.·May 17, 2024SaveLearn
Deciphering Solar Cycle Influence on Long-Term Orbital Deterioration of Low-Earth Orbiting Space DebrisThe rapid increase in the number of space debris represents a substantial threat to the sustained viability of space operations and underscores the importance of understanding long-term drivers of…Ayisha M Ashruf, Ankush Bhaskar, C Vineeth et al.·May 14, 2024SaveLearn
Acceleration of electrons and ions by an "almost" astrophysical shock in the heliosphereCollisionless shock waves, ubiquitous in the universe, are crucial for particle acceleration in various astrophysical systems. Currently, the heliosphere is the only natural environment available for…Immanuel Christopher Jebaraj, Oleksiy Agapitov, Vladimir Krasnoselskikh et al.·May 11, 2024SaveLearn
First direct observations of interplanetary shock impact angle effects on actual geomagnetically induced currents: The case of the Finnish natural gas pipeline systemThe impact of interplanetary (IP) shocks on the Earth's magnetosphere can greatly disturb the geomagnetic field and electric currents in the magnetosphere-ionosphere system. At high latitudes, the…Denny M. Oliveira, Eftyhia Zesta, Sergio Vidal-Luengo·May 7, 2024SaveLearn
A Kinetic Model of Solar Wind Generation and Heating by Kinetic Alfv\'en Wave TurbulenceWe present results from a kinetic model of collisionless gyrotropic coronal hole protons heated by cyclotron and Landau resonant dissipation of critically balanced kinetic Alfv\'en waves. The model…Philip A. Isenberg, Bernard J. Vasquez·May 4, 2024SaveLearn
Organ Dose Equivalents of Albedo Protons and Neutrons Under Exposure to Large Solar Particle Events during Lunar Human Landing MissionsAstronauts participating in lunar landing missions will encounter exposure to albedo particles emitted from the lunar surface as well as primary high-energy particles in the spectra of galactic…Sungmin Pak, Francis A. Cucinotta·Apr 30, 2024SaveLearn
Low-Latitude Auroras: Insights from 23 April 2023 Solar StormIn April 2023, low-latitude aurora observation by the all-sky camera at Hanle, Ladakh, India (33 N geographic latitude (GGLat)) was reported, which stimulated a lot of discussion among…Geeta Vichare, Ankush Bhaskar, Rahul Rawat et al.·Apr 25, 2024SaveLearn
SOLSAT: An FPGA Based satellite for effective Solar-activity monitoringKp-Index is a very important factor for determining how the Sun's magnetic field is affecting the Earth's magnetic field and help us prepare for the worst (like solar or geomagnetic storms).…Ayushman Dash, Reena Monica P·Apr 24, 2024SaveLearn
Impacting the dayside Martian ionosphere from above and below: Effects of the impact of CIRs and ICMEs close to aphelion (April 2021) and during dust storms (June-July 2022) seen with MAVEN ROSEWe use 62 electron density profiles collected by the Radio Occultation Science Experiment (ROSE), on MAVEN, when Mars was hit by CIRs and ICMEs close to aphelion (April 2021) and during two dust…Marianna Felici, Jennifer Segale, Paul Withers et al.·Apr 23, 2024SaveLearn
MESSENGER observations of Mercury's planetary ion escape rates and their dependence on true anomaly angleThis study investigates the escape of Mercury's sodium-group ions (Na+-group, including ions with m/q from 21 to 30 amu/e) and their dependence on true anomaly angle (TAA), i.e., Mercury's orbital…Weijie Sun, Ryan M. Dewey, Xianzhe Jia et al.·Apr 20, 2024SaveLearn
Energetic particle acceleration and transport with the novel Icarus+PARADISE modelWith the rise of satellites and mankind's growing dependence on technology, there is an increasing awareness of space weather phenomena related to high-energy particles. Shock waves driven by coronal…Edin Husidic, Nicolas Wijsen, Tinatin Baratashvili et al.·Apr 18, 2024SaveLearn
Statistical Analysis of High-frequency Whistler Waves at Earth's Bow Shock: Further Support for Stochastic Shock Drift AccelerationWe statistically investigate high-frequency whistler waves (with frequencies higher than 10 % of the local elect ron cyclotron frequency) at Earth's bow shock using Magnetospheric Multi-Scale…Takanobu Amano, Miki Masuda, Mitsuo Oka et al.·Apr 11, 2024SaveLearn
On the plasma quasi-thermal noise in the outer heliosphereThe recent paper by Li et al. on electron quasi-thermal noise in the outer heliosphere is flawed. It assumes the plasma drift speed to be much smaller than the electron thermal speed, even though…Nicole Meyer-Vernet, Alain Lecacheux·Apr 5, 2024SaveLearn
Higher-Order Analysis of Three-Dimensional Anisotropy in Imbalanced Alfv\'enic TurbulenceWe analyze in-situ observations of imbalanced solar wind turbulence to evaluate MHD turbulence models grounded in "Critical Balance" (CB) and "Scale-Dependent Dynamic Alignment" (SDDA). At energy…Nikos Sioulas, Themistocles Zikopoulos, Chen Shi et al.·Apr 5, 2024SaveLearn
A rare simultaneous detection of a mid-latitude plasma depleted structure in O(1D) 630.0 nm and O(1S) 557.7 nm all-sky airglow images on a geomagnetically quiet nightIn general, nighttime thermospheric 557.7 nm emission over mid-latitudes is predominantly masked by significantly larger mesospheric component, and hence, F-region plasma structures are rarely…D. Patgiri, R. Rathi, V. Yadav et al.·Apr 3, 2024SaveLearn
Performance Characterization of Heliotrope Solar Hot-Air Balloons during Multihour Stratospheric FlightsHeliotropes are passive solar hot air balloons that are capable of achieving nearly level flight within the lower stratosphere for several hours. These inexpensive flight platforms enable…Taylor D. Swaim, Emalee Hough, Zachary Yap et al.·Apr 3, 2024SaveLearn
Language Models are Spacecraft OperatorsRecent trends are emerging in the use of Large Language Models (LLMs) as autonomous agents that take actions based on the content of the user text prompts. We intend to apply these concepts to the…Victor Rodriguez-Fernandez, Alejandro Carrasco, Jason Cheng et al.·Mar 30, 2024SaveLearn
Single track orbit determination analysis for low Earth orbit with approximated J2 dynamicsIn the domain of Space Situational Awareness (SSA), the challenges pertaining to orbit determination and catalog correlation are notably pronounced, partly attributable to the escalating presence of…Jose M. Montilla, Jan A. Siminski, Rafael Vazquez·Mar 30, 2024SaveLearn