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Improving the tracking performance of space observation radar systems Adv. Space Res. (IF 2.6) Pub Date : 2024-03-09 C. Carloni, D. Cerutti-Maori, M. Budoni, J. Rosebrock, I.O. Maouloud, E. Stoll
This study focuses on the improvement of the tracking performance of space observation radar systems. Coherent radar systems usually provide an observation vector including four observables (range, range rate, azimuth, elevation) measured at a given epoch. Moreover, for some coherent radars, such as the TIRA system, it is possible to determine an additional parameter, the range rate rate, which is
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Variable stiffness design for the soft landing of a 2016HO3 asteroid probe Adv. Space Res. (IF 2.6) Pub Date : 2024-03-09 Jianzhong Ding, Shiming Zhou, Haoran Yu, Chunjie Wang
China plans to launch a probe to detect and sampling on the near-Earth asteroid 2016HO3 around 2025. In view of this, this paper discusses an alternative landing strategy with passive variable stiffness landing gears, which help to land the probe stably on the asteroid for sufficient sampling time. First, a three-legged lander is introduced, following which, a four-bar-linkage-based variable stiffness
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Transformer-based Semantic Segmentation for Large-Scale Building Footprint Extraction from Very-High Resolution Satellite Images Adv. Space Res. (IF 2.6) Pub Date : 2024-03-09 Mohamed Barakat A. Gibril, Rami Al-Ruzouq, Abdallah Shanableh, Ratiranjan Jena, Jan Bolcek, Helmi Zulhaidi Mohd Shafri, Omid Ghorbanzadeh
Extracting building footprints from extensive very-high spatial resolution (VHSR) remote sensing data is crucial for diverse applications, including surveying, urban studies, population estimation, identification of informal settlements, and disaster management. Although convolutional neural networks (CNNs) are commonly utilized for this purpose, their effectiveness is constrained by limitations in
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Coupled translation and attitude tracking control for multi-satellite electromagnetic formation flight based on dual quaternion Adv. Space Res. (IF 2.6) Pub Date : 2024-03-09 Yingying Song, Qingrui Zhou, Qingwei Chen
Electromagnetic formation flight technology utilizes electromagnetic force and torque between satellites to control satellites’ relative position and attitude without consuming propellant, thus having broad application prospects. However, the dynamics of electromagnetic formation flying are nonlinear and strongly coupled, posing challenges to the 6-DOF control of electromagnetic formation and the magnetic
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Ring Current Electron Precipitation During the 17 March 2013 Geomagnetic Storm: Underlying Mechanisms and Their Effect on the Atmosphere Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 Alina S. Grishina, Yuri Y. Shprits, Alexander Y. Drozdov, Miriam Sinnhuber, Florian Haenel, Dedong Wang, Mátyás Szabó-Roberts, Jan Maik Wissing, Stefan Bender
Electron and ion fluxes at energies of ∼ 10 keV - 1 MeV can change by orders of magnitude during geomagnetically active periods. This can lead to intensification of particle precipitation into the Earth's atmosphere. The process further affects atmospheric chemistry, which may impact weather and climate on the Earth’s surface. In this study, we concentrate on ring current electrons, and investigate
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An investigation of PPP degradations over Asia-Pacific region during Tonga volcanic eruption on 15 January, 2022 Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 Yujie Li, Houpu Li, Zichun Xie, Xiaomin Luo, Tao Yue
On 15 January, 2022, a significant volcanic eruption occurred at Hunga Tonga-Hunga Ha’apai (HTHH), causing global ionospheric disturbances. To investigate ionospheric anomalies and the kinematic GNSS PPP responses to this volcanic eruption over the Asia-Pacific region, the rate of the total electron content index (ROTI) map derived from about 1100 GNSS stations data and ionospheric scintillation indices
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A Hierarchical Shape Description Approach and Its Application in Similarity Measurement of Polygon Entities Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 Jingzhen Ma, Qun Sun, Chao Ma, Zheng Lyu, Shijie Sun, Bowei Wen
Spatial similarity provides an important basis for geographic information processing and is widely applied in multi-source data fusion and update, data retrieval and query, and cartographic generalization. To address the shape description and similarity measurement of polygon entities, this study presents a new hierarchical shape description approach and examines its application in similarity measurement
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An Assessment of Solar Cycle 25 progress through observation of SRBs and associated Geomagnetic Storms Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 Theogene Ndacyayisenga, Jean Uwamahoro, Kantepalli Sasikumar Raja, Jean Claude Uwamahoro, Christian Kwisanga, Christian Monstein
Geomagnetic storms are severe aspects of Space Weather. They originate due to solar transient emissions such as coronal mass ejections (CMEs), whose energetic materials propagate in the Interplanetary medium and are coupled with the magnetosphere system. CME driven Geomagnetic storms are often associated with solar radio bursts (SRBs), particularly type II and type IV bursts. In this study, we present
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Prioritization of the sub-watersheds based on the dynamic changes of the watershed using the game theory approach Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 Seyed Hamidreza Sadeghi, Mostafa Zabihi Silabi, Mehdi Vafakhah
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Spatiotemporal variability of the coastal circulation in the northern Gulf of Cadiz from Copernicus Sentinel-3A satellite radar altimetry measurements Adv. Space Res. (IF 2.6) Pub Date : 2024-03-08 R. Mulero-Martinez, J. Gómez-Enri, L. De Oliveira Júnior, E. Garel, P. Relvas, R. Mañanes
This study presents a generalised characterisation of the surface circulation over the northern shelf of the Gulf of Cadiz, based on 4 years of high-resolution satellite altimetry data from Sentinel-3A and wind model data. The altimetry-based surface zonal currents, adjusted for bottom-drag and wind effects, are compared with a generic CMEMS product and validated against in-situ ADCP measurements.
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Monte Carlo simulation of spacecraft breakup events in Low Lunar Orbit Adv. Space Res. (IF 2.6) Pub Date : 2024-03-07 Nathan Boone, Robert Bettinger
Monte Carlo simulations of spacecraft breakup events in Low Lunar Orbit are conducted to study the behavior of artificial debris across all orbit types in this environment. 2,000 breakup events at random initial states in lunar orbit are simulated, and the resulting nearly 500,000 particles are propagated for five years using a high-fidelity lunar trajectory model. Debris from a smaller sample of 200
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Simultaneous monitoring of the limited area ionosphere with the use of GPS and ionosonde Adv. Space Res. (IF 2.6) Pub Date : 2024-03-06 Oksana Grynyshyna-Poliuga
The importance of this study lies in its contribution to the field of ionospheric science, particularly in the monitoring and prediction of ionospheric parameters. This study focuses on comparing two techniques for spatio-temporal kriging of critical ionospheric parameters, namely the F2 layer critical frequency (foF2) and Total Electron Content (TEC), under both quiet and disturbed ionospheric conditions
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Dynamical modeling and characteristic analysis of orbits around a comet Adv. Space Res. (IF 2.6) Pub Date : 2024-03-05 Yuchen He, Yue Wang, Lin Tian
As a frontier field of deep-space explorations, the study of comets is of great value to planetary scientific research, resource exploration, and planetary defense. To date, only the ESA's Rosetta spacecraft successfully orbited the comet 67P. The orbital dynamical environment around comets is more complex than that of other small bodies, making the orbital stability around comets an important issue
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Uncertainty of thermosphere mass density observations derived from accelerometer and GNSS tracking data Adv. Space Res. (IF 2.6) Pub Date : 2024-03-05 Christian Siemes, Jose van den IJssel, Pieter Visser
Thermosphere mass density and crosswind can be derived from accelerometer and GNSS tracking data. However, present datasets are often provided without comprehensive uncertainty specifications. We present a newly developed method that propagates measurement noise and errors in the satellite specification, thermosphere models, and radiation flux data to density observations to quantify their uncertainty
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A cloud-native approach for processing of crowdsourced GNSS observations and machine learning at scale: A case study from the CAMALIOT Project Adv. Space Res. (IF 2.6) Pub Date : 2024-03-05 Grzegorz Kłopotek, Yuanxin Pan, Tobias Sturn, Rudi Weinacker, Linda See, Laura Crocetti, Mudathir Awadaljeed, Markus Rothacher, Ian McCallum, Steffen Fritz, Vicente Navarro, Benedikt Soja
The era of modern smartphones, running on Android version 7.0 and higher, facilitates nowadays acquisition of raw dual-frequency multi-constellation GNSS observations. This paves the way for GNSS community data to be potentially exploited for precise positioning, GNSS reflectometry or geoscience applications at large. The continuously expanding global GNSS infrastructure along with the enormous volume
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The Copernicus POD service Adv. Space Res. (IF 2.6) Pub Date : 2024-03-05 Jaime Fernández, Heike Peter, Carlos Fernández, Javier Berzosa, Marc Fernández, Luning Bao, Miguel Ángel Muñoz, Sonia Lara, Eva Terradillos, Pierre Féménias, Carolina Nogueira
The Copernicus Precise Orbit Determination (CPOD) Service is in charge of computing the precise orbits and auxiliary data files of the Copernicus Sentinel-1, −2, −3 and −6 missions, using the GPS&Galileo observations obtained on-board. The orbit products and auxiliary data files are provided to the corresponding Payload Data Ground Segments (PDGS) and Payload Data Acquisition and Processing (PDAP)
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Improving MODIS-IR precipitable water vapor based on the FIDWFT model Adv. Space Res. (IF 2.6) Pub Date : 2024-03-04 Xiangrong Yan, Weifang Yang, Nan Ding, Fenglin Gao, Yibo Peng
The monitoring of precipitable water vapor (PWV) is of significant importance for meteorological research and rainstorm prediction. The moderate resolution imaging spectroradiometer (MODIS) is one of the most widely used remote sensing PWV instruments aboard the Terra and Aqua satellites. The main objective of this study is to develop a fused inverse distance weighting and the Fourier transform model
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Deep learning-assisted near-Earth asteroid tracking in astronomical images Adv. Space Res. (IF 2.6) Pub Date : 2024-03-04 Zhenhong Du, Hai Jiang, Xu Yang, Hao-Wen Cheng, Jing Liu
The large number of near-Earth asteroids (NEAs) has greatly impacted human space activities and Earth security. However, detecting NEAs in astronomical images with complex, varying backgrounds is still extremely challenging. In this paper, we propose a deep segmentation assisted asteroid tracking algorithm, termed DSAT, to construct a possible pipeline for faint NEA tracking in astronomical images
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A temporal gap filling approach for GNSS-IR soil moisture inversion based on generalized extension Adv. Space Res. (IF 2.6) Pub Date : 2024-03-01 Haodong Zhao, Junna Shang, Fangzhou Li, Huli Shi, Run Pang
Soil moisture monitoring is a research hotspot in the application of navigation satellite reflected signals. In order to retrieve soil moisture in any period with high precision and solve the problem that soil moisture cannot be retrieved when satellite observation data is partially missing, the principle of generalized extension in engineering science is applied to GNSS-IR technology in the paper
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Data Relay Constellation for high-performance links supply to future Martian missions Adv. Space Res. (IF 2.6) Pub Date : 2024-03-01 Daniele Barberi Spirito, Jacopo Prinetto, Andrea Capannolo, Michèle Lavagna
Over the last decade, the scientific interest in Mars drastically increased. The planned growth of the number of robotic missions, together with the sensors’ increasing data acquisition capabilities and the expected crewed expeditions, entails a significant increase in data flow between the Martian assets and Earth both in volume and frequency of contact. In particular, crewed missions would lead to
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Legal challenges of additive manufacturing on the Moon Adv. Space Res. (IF 2.6) Pub Date : 2024-02-29 Du Li
Additive manufacturing (AM) is promising for supporting sustainable human presence on the Moon as it reduces costs and dependency on the Earth. It has been incorporated into several lunar programs. Nonetheless, AM on the Moon is legally challenging. First, the legal field most challenged by AM is intellectual property (IP) law, and the peculiar location of AM on the Moon complicates the issue. Deciding
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Multifractal and chaotic characteristics of geomagnetic inter-storm interval over eight solar cycles Adv. Space Res. (IF 2.6) Pub Date : 2024-02-29 Samuel Ogunjo, Babatunde Rabiu, Ibiyinka Fuwape, Oluwatoyin Atikekeresola
The structure and characteristics of geomagnetic inter-storm intervals, the sequence of time differences between two successive storm events, can provide information about the origin and drivers of the storms compared to analyzing the entire data set. In this study, the inter-storm event was investigated using the index over 8 solar cycles (17–24). Three nonlinear approaches were considered: burstiness
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Accuracy assessment of the ionospheric total electron content derived from COSMIC-2 radio occultation based on multi-source data Adv. Space Res. (IF 2.6) Pub Date : 2024-02-29 Chunhua Jiang, Qianfang An, Shuaimin Wang, Wenfeng Nie, Huizhong Zhu, Guangsheng Liu
To analyze the quality of Total Electron Content (TEC) from Constellation Observing System for Meteorology, Ionosphere and Climate 2 (COSMIC-2), we use TEC from ground-based GNSS, Global Ionospheric Maps (GIM), International Reference Ionosphere 2016 (IRI-2016), COSMIC-1 and Fengyun 3C. Firstly, we use the ground-based GNSS TEC from 14 stations of International GPS Service (IGS) to evaluate the accuracy
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Relativistic electron ([formula omitted]) flux driving parameters over geostationary orbit using 30 years of data Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Geletaw B., Melessew N., Reeves G.D.
The relativistic electron population at MeV energy in the Earth’s outer radiation belt at geostationary (GOE) orbit largely varies in association with solar wind disturbances. Although more researches have been done to understand the influence of different mechanisms that cause the variations in the relativistic electron flux in the region, but still the underlying physics is often complex and unclear
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The correlation study between EIA north crest in the south Asia region and strong earthquakes Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Jing Liu, Xinyi Jia, Zhuangkai Wang, Xuemin Zhang, Yi Liu, Chen Zhou
Paying attention to the relationship between EIA signatures and earthquakes can be useful to further understand the earthquake anomalies and seismo-ionospheric coupling mechanism. Based on the GIM TEC data, the EIA north crest signature in the south Asia region was investigated for 92 M≥6.0 earthquakes from 1999 to 2022. A running mean method was utilized to extract the anomalies potentially associated
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The Possible Effect of Turbopause on Formation of Mid-Latitude Sporadic E layers Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Yabin Zhang, Yanli Hu, Jian Wu, Feifei Wang, Wen Yi, Hong Lu, Shouzhi Xie, Tong Xu, Bin Xu, Xiaobin Wang, Zhengwen Xu
Sporadic E (Es) layers are thin enhanced ionization patches. The electron density of Es layer is very high, up to 100 times that of the regular E layer. Therefore, Es layer has a significant effect on radio wave propagation. The formation mechanisms of Es layers is very complicated, so it needs multi-observations and simulations research. Combined observations using an ionosonde, very high frequency
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An onboard periodic rescheduling algorithm for satellite observation scheduling problem with common dynamic tasks Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Hai Li, Yongjun Li, Qing Qing Meng, Xin Li, Long Shao, Shanghong Zhao
Earth observation satellite (EOS) scheduling is critical for improving the performance of earth observation system. Most of the existing studies on satellite observation scheduling problems focus on static tasks and real-time dynamic tasks also known as emergency tasks while few attempts have been made for common dynamic tasks yet. The common dynamic tasks are characterized by uncertain arrival times
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Methodology for the characterisation of the impact of TEC fluctuations and scintillation on ground positioning quality over South America and North Europe, with implications for forecasts Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Biagio Forte, Tom Allbrook, Alex Arnold, Ivan Astin, Bruno César Vani, João Francisco Galera Monico, Milton Hirokazu Shimabukuro, Alexandra Koulouri, Habila Mormi John
A variety of economic sectors rely upon the use of Global Navigation Satellite Systems (GNSS) in areas such as autonomous navigation, timing, land management, oil exploration, precision agriculture, civil aviation.
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Spatiotemporal Landsat-Sentinel-2 satellite imagery-based Hybrid Deep Neural network for paddy crop prediction using Google Earth engine Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Preeti Saini, Bharti Nagpal
Rice is one of the predominant food sources to fulfill the dietary requirements of well-being in India. Therefore, accurate and timely paddy crop yield prediction is crucial to ensure the food security of the country. In this direction, the present study proposed a hybrid deep-learning method based on Conv-1D and LSTM layers using the classification-derived phenological with meteorological parameters
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A deep learning-based model for tropospheric wet delay prediction based on multi-layer 1D convolution neural network Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Haohang Bi, Liangke Huang, Hongxing Zhang, Shaofeng Xie, Lv Zhou, Lilong Liu
Tropospheric delay constitutes a primary source of error in Global Navigation Satellite System (GNSS) navigation positioning. Existing machine learning zenith wet delay (ZWD) models have limitations in their feature extraction capabilities. To address these limitations, we propose a ZWD (CNN_ZWD) model which is built upon observation data collected from 88 radiosonde (RS) stations in China from 2015
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Development and testing of the MicroMED sensor: From BreadBoard model to flight model Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Fabio Cozzolino, Gabriele Franzese, Fausto Cortecchia, Cesare Molfese, Francesca Esposito, Giuseppe Mongelluzzo, Alan Cosimo Ruggeri, Carmen Porto, Simone Silvestro, Ciprian Ionut Popa, Diego Scaccabarozzi, Bortolino Saggin, Ignacio Arruego, José Ramon De Mingo, Alberto Martín-Ortega Rico, Nuria Andrés-Santiuste, Joaquìn Rivas, Daniele Brienza
Suspended dust plays a critical role in regulating the Martian climate by influencing the atmospheric thermal gradient, altering the amount of infrared and visible energy absorbed and scattered by the atmosphere, and acting as condensation nuclei for CO ice-clouds particles. There are many well demonstrated, dust-related effects on martian climate which depend on dustsize, concentration, chemical and
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A concise review of resource requirements for future space exploration Adv. Space Res. (IF 2.6) Pub Date : 2024-02-28 Jia-Lin Zhang, Yun-Ze Li, Yan Zhang
Establishing a lunar base is a critical goal for many aerospace powers. To achieve this goal, various resources such as life support materials, energy, and shelter are required. However, current research only focuses on the methods for collecting materials and the corresponding technologies required for lunar bases without comparing their advantages and disadvantages. Therefore, it is essential to
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Design and Development of a Cansat for Air Pollution Monitoring with RSSI Based Position Retrieval System Adv. Space Res. (IF 2.6) Pub Date : 2024-02-27 S. Sai Shiva Rama Krishna, V. Kirthi Vishal, P. Vishwanath Kumar, G. Madhu, M. Narayana, B. Manjula Naik, P. Naveen, K. Aishwarya
A CanSat is a miniature satellite system designed to be launched and operate in a manner similar to a satellite but on a much smaller scale. The term “CanSat” is derived from the combination of “Can” (referring to the soda can-sized container often used for the prototype) and “Satellite.” These small and cost-effective systems are typically used for educational purposes and scientific experiments.
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Detection of the pre-seismic anomalies in stratospheric temperature and radio emission using space-based observations Adv. Space Res. (IF 2.6) Pub Date : 2024-02-27 Faezeh Moayeri Manesh, Alireza Mahmoudian, Habib Rahimi
The present paper implements new approaches introduced in regard to pre-earthquake geo-chemical activity that results in lithosphere-atmosphere-ionosphere coupling (LAIC). Specifically, stratospheric temperature anomaly as a result of precursory atmospheric gravity wave (AGW) activity in the stratosphere is studied. A new technique is developed based on the parameters a) daily average temperature ()
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Enormous impulsive enhancement of particle fluxes observed on Aragats on May 23, 2023 Adv. Space Res. (IF 2.6) Pub Date : 2024-02-27 A. Chilingarian, G. Hovsepyan, B. Sargsyan, T. Karapetyan, D. Aslanyan, L. Kozliner
An unprecedented thunderstorm ground enhancement (TGE) event was recorded on May 23, 2023, at Aragats Mountain, the highest peak in Armenia. This event showcased a maximum flux intensity surpassing 3 million particles per minute per square meter for energies above 0.4 MeV. Distinctly, the fluence of the event was measured at approximately ≈700 particles/cm2. The comprehensive instrumentation at the
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Prediction of Solar Energetic Events Impacting Space Weather Conditions Adv. Space Res. (IF 2.6) Pub Date : 2024-02-24 Manolis K. Georgoulis, Stephanie L. Yardley, Jordan A. Guerra, Sophie A. Murray, Azim Ahmadzadeh, Anastasios Anastasiadis, Rafal Angryk, Berkay Aydin, Dipankar Banerjee, Graham Barnes, Alessandro Bemporad, Federico Benvenuto, D. Shaun Bloomfield, Monica Bobra, Cristina Campi, Enrico Camporeale, Craig E. DeForest, A. Gordon Emslie, David Falconer, Li Feng, Weiqun Gan, Lucie M. Green, Sabrina Guastavino
Aiming to assess the progress and current challenges on the formidable problem of the prediction of solar energetic events since the COSPAR / International Living With a Star (ILWS) Roadmap paper of , we attempt an overview of the current status of global research efforts. By solar energetic events we refer to flares, coronal mass ejections (CMEs), and solar energetic particle (SEP) events. The emphasis
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Tape spring for deployable space structures: A review Adv. Space Res. (IF 2.6) Pub Date : 2024-02-23 Megha Thaker, Shashikant J. Joshi, Hemant Arora, Dhaval B. Shah
Developments in communication technology call for antenna sizes to be greater than two meters. This has made it necessary to use deployable structures, particularly in space applications. Deployable structures can make major configuration changes on their own. The most common configuration change is from a packed, compact state on the ground during the launch to a deployed large state in space. A tape
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Bi-Stage Feature Selection for Crop Mapping using Grey Wolf Metaheuristic Optimization Adv. Space Res. (IF 2.6) Pub Date : 2024-02-23 Marwa S. Moustafa, Amira S. Mahmoud, Eslam Farg, Mohsen Nabil, Sayed M. Arafat
Machine learning classifiers have been widely used for crop mapping; however, employing numerous features can reduce classifier accuracy. Feature selection is a widely recognized technique that addresses the issue of high dimensionality by choosing the most relevant subset of features with the highest degree of relevance and practicality. Therefore, the optimal combination of feature selection methods
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Detection of long-range correlation causing multifractality in H time series of geomagnetic field over the Northern Hemisphere during quiet geomagnetic conditions Adv. Space Res. (IF 2.6) Pub Date : 2024-02-23 S. Sajith Babu, K. Unnikrishnan
The generation of geomagnetic time series frequently involves intricate spatio-temporal dynamics, wherein nonlinearity and scaling emerge as pivotal mechanisms. The present work investigates the fractal properties of geomagnetic field, and its sources during quiet geomagnetic conditions, by analyzing the horizontal component data of 1 min resolution (H time series) from different latitude regions.
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Optimizing nano/micro satellite constellation lifecycle cost based on reliability after acceptance testing Adv. Space Res. (IF 2.6) Pub Date : 2024-02-21 Kah How Teo, Kang Tai, Vincenzo Schena, Luca Simonini
Constellation lifecycle costs are an important metric for constellation designers. Recurring costs of mega constellations in particular are large relative to the non-recurring costs, yet little attention has been given to the reduction of recurring costs. Moreover, few studies exist on the impacts of pre-launch activities such as satellite testing on subsequent operational reliability. We thus study
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Refined Troposphere Delay Models by NWM Ray-tracing for Pseudolite Positioning System and Their Performance Assessment Adv. Space Res. (IF 2.6) Pub Date : 2024-02-21 Wenjie Tang, Junping Chen, Yize Zhang, Junsheng Ding, Ziyuan Song
Pseudolite positioning system can enhance GNSS (Global Navigation Satellite System) by improving satellite geometry and providing services independently in the GNSS unavailable environment. Many error items of pseudolite positioning system, e.g., tropospheric delay error, need to be corrected by an accurate model. While several tropospheric delay models suitable for pseudolite positioning systems have
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Comparative analysis of multi-source data for machine learning-based LAI estimation in Argania spinosa Adv. Space Res. (IF 2.6) Pub Date : 2024-02-21 Mohamed Mouafik, Mounir Fouad, Felix Antoine Audet, Ahmed El Aboudi
In this study, we conducted a comprehensive assessment of Leaf Area Index (LAI) estimation using three distinct sources of satellite data: Sentinel-2 imagery, drone imagery (UAVs), and Mohammed VI satellite data. The main objective was to identify the most reliable and precise dataset for predicting LAI, with a focus on evaluating the performance of Random Forest models. For Sentinel-2 imagery, our
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Temporal Variability of Atmospheric Columnar CO2, CH4, CO and N2O Concentrations using Ground-based Remote Sensing FTIR Spectrometer Adv. Space Res. (IF 2.6) Pub Date : 2024-02-20 Mahesh Pathakoti, D.V Mahalakshmi, A.L. Kanchana, K.S. Rajan, Alok Taori, Rajashree V.Bothale, Prakash Chauhan
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Evolution of the cosmic ray spectrum during a Forbush decrease Adv. Space Res. (IF 2.6) Pub Date : 2024-02-20 Juan José Blanco, Sindulfo Ayuso, Alberto Regadío, Alejandro López-Comazzi, Juan Ignacio García-Tejedor, Óscar García-Población, Carlo Luis Guerrero Contreras
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Efficient astrodynamics-informed kinodynamic motion planning for relative spacecraft motion Adv. Space Res. (IF 2.6) Pub Date : 2024-02-19 Taralicin Deka, Jay McMahon
In this paper, we present a computationally efficient sampling-based spacecraft relative motion planning algorithm to reconfigure a spacecraft from a given initial state to a desired final state while avoiding collisions with obstacles and minimizing the total fuel required for the transfer. In our previous work, we presented an astrodynamics-informed kinodynamic motion planning (AIKMP) algorithm that
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Cosmic ray acceleration and non-thermal emission from fast luminous optical transient sources Adv. Space Res. (IF 2.6) Pub Date : 2024-02-19 V.I. Romansky, A.M. Bykov, S.M. Osipov
Fast blue optical transients (FBOTs) represent a new class of highly energetic sources observed from radio to X-rays. High luminosity, light curves and spectra of the sources can be understood if they are associated with supernova-like or tidal disruption events. Radio observations of the transient sources revealed a mildly relativistic expansion of some of the remnants. The high power and mildly relativistic
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Linear dependence of the equatorial electrojet component of X-class-triggered solar flare effects with respect to the maximum flare X-ray flux Adv. Space Res. (IF 2.6) Pub Date : 2024-02-19 Erick Montoya, Rafael Carlos
Solar flares effects (SFE) are short geomagnetic disturbances (mainly in the horizontal component) observed during the development of solar flares. SFE are caused by current enhancements in multiple layers of the ionosphere induced by the flare ionizing radiation. Despite their origin, very few research studies have focused on the connection between the horizontal SFE amplitude and the maximum flare
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Real-time high-precision baseline measurement of satellite formation flying based on GNSS Adv. Space Res. (IF 2.6) Pub Date : 2024-02-19 Yingkai Cai, Yichao Li, Zhaokui Wang
With the establishment of the Chinese space station, a series of space science missions will be conducted in its vicinity. One of the extended tasks for the in-orbit service of space station is the formation flying of small satellites centered around the space station. Satellite formations can perform simultaneous three-dimensional observations of the space station, generating three-dimensional images
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Corrigendum to “Probabilistic multi-dimensional debris cloud propagation subject to non-linear dynamics” [Adv. Space Res. 72(2) (2023) 129–151] Adv. Space Res. (IF 2.6) Pub Date : 2024-02-17 Lorenzo Giudici, Mirko Trisolini, Camilla Colombo
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A storm-time global electron density reconstruction model in three-dimensions based on artificial neural networks Adv. Space Res. (IF 2.6) Pub Date : 2024-02-16 John Bosco Habarulema, Daniel Okoh, Dalia Burešová, Babatunde Rabiu, Danny Scipión, Ingemar Häggström, Philip J. Erickson, Marco A. Milla
We present results of a dedicated global storm-time model for the reconstruction of ionospheric electron density in three-dimensions. Using the storm criterion of nT and , the model is constructed using a combination of radio occultation and ionosonde data during the periods of 2006-2021 and 2000-2020, respectively. From the ionosonde data, only the bottomside electron density profiles up to the maximum
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Analysis of BDS inter-satellite link ranging performance Adv. Space Res. (IF 2.6) Pub Date : 2024-02-16 Chao Zhang, Tao Geng, Xin Xie, Qile Zhao, Tao Li, Zhongxing Li, Yinan Meng
The Ka-band inter-satellite link (ISL) is a key technology of BeiDou Global Navigation Satellite System (BDS-3) that can improve the system performance. Based on 30 days of ISL observations, we analyze the BDS-3 ISL ranging performance and the related influencing factors, such as satellite manufacturer, satellite orbit type and link type. The fitting residuals of the ISL geometry-free observations
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Learning-based constellation scheduling for time-sensitive space multi-target collaborative observation Adv. Space Res. (IF 2.6) Pub Date : 2024-02-15 Yan Liu, Zhijiang Wen, Shengyu Zhang, Haiying Hu
The space time-sensitive multi-target collaborative observation scheduling problem extends the traditional Earth Observation Satellite (EOS) scheduling by incorporating the time dimension. Multiple effective and collaborative observations over time are required to collect relevant information on time-sensitive space targets in high-speed motion. Furthermore, changes in target spatial relationships
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Survey of mercury-199 frequency standard developments towards potential GNSS application Adv. Space Res. (IF 2.6) Pub Date : 2024-02-15 Ding Wang, Vadim Davydov
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Dynamics-Informed Hierarchical Sliding Mode Control for Libration of Partial Space Elevators in Cargo Transportation Adv. Space Res. (IF 2.6) Pub Date : 2024-02-15 Gefei Shi, Zheng H. Zhu
This study presents an original analysis of out-of-plane libration dynamics and its control in partial space elevator cargo transportation. A comprehensive three-dimensional dynamic model of the partial space elevator has been derived to examine the effects of out-of-plane libration. To ensure a stable in-plane configuration, a coupling-free analytical speed function is developed that cancels out the
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GSSC Now: ESA Thematic Exploitation Platform for Navigation Digital Transformation. Enhancing GNSS Scientific Research Adv. Space Res. (IF 2.6) Pub Date : 2024-02-15 Vicente Navarro, Sara del Rio, Maria del Mar Millán, Alain Messina, Javier Ventura-Traveset
As Global Navigation Satellite Systems (GNSS) infrastructure expands and more satellites are launched, the number of signals and measurements available to users increases, resulting in a corresponding rise in data generation rates. GNSS receivers with the ability to process triple frequency measurements and multi-constellation reception, have been complemented with the massive deployment of connected
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Impact of solar activity on thermospheric mass density response: Observations from GRACE-FO Adv. Space Res. (IF 2.6) Pub Date : 2024-02-14 Bowen Wang, Xiangguang Meng, Yueqiang Sun, Benjamin Männel, Jens Wickert, Weihua Bai, Longjiang Tang
High-resolution thermospheric mass density low Earth orbit (LEO)-based measurements are valuable for accurately estimating short-term atmospheric abrupt disturbances triggered by solar flux forcing. To investigate the enhancing status of solar cycle 25 between August 29 and December 31, 2020, we processed Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) 10-s accelerometer-derived thermospheric
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Ionospheric changes immediately before the 2008 Wenchuan earthquake Adv. Space Res. (IF 2.6) Pub Date : 2024-02-14 Kosuke Heki, Masao Nakatani, Wei Zhan
Ionospheric disturbances associated with large earthquakes can be observed with global navigation satellite system (GNSS) receivers on the ground as changes in total electron content (TEC). In addition to coseismic disturbances ∼10 minutes after earthquakes caused by acoustic-gravity waves from epicenters, there have been reports on changes immediately before very large earthquakes. We show such disturbances
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Particle-In-Cell simulation of electrostatic waves in the ionosphere Adv. Space Res. (IF 2.6) Pub Date : 2024-02-12 Rakesh Moulick, Sayan Adhikari, Gunjan Sharma, B.K. Saikia, W.J. Miloch
In the upper atmosphere (ionosphere), plasma with two electron populations is very common. The cold electrons ( eV) usually originate in the ionosphere, while the hot electrons ( eV) come from the magnetosphere. In addition to these two electron populations, there may be a beam of electrons streaming along the magnetic field lines. These electrons are responsible for exciting various electrostatic
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Source parameter inversion of the 2021 MW7.4 Maduo earthquake and stress transfer in the eastern Bayan Har block Adv. Space Res. (IF 2.6) Pub Date : 2024-02-10 Shuaipeng Wang, Keke Xu, Mosi Zhang, Tongtong Wan
In order to explore the constraint degree of GNSS and InSAR data on the Maduo earthquake under the layered earth model structure, and to understand the cause of the Maduo earthquake and the danger of the surrounding area, this paper uses D-InSAR technology to obtain the InSAR co-seismic deformation field of the Maduo earthquake on May 22,2021. Based on GNSS and InSAR data, the co-seismic slip model
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Determination of the anisotropy of elementary particles with the Alpha Magnetic Spectrometer on the International Space Station Adv. Space Res. (IF 2.6) Pub Date : 2024-02-09 Miguel Ángel Velasco, Jorge Casaus, Miguel Molero
A measurement of the cosmic ray anisotropy on the arrival directions of elementary particles (electrons, positrons and protons) has been performed in galactic coordinates by the Alpha Magnetic Spectrometer onboard the International Space Station. The analysis is based on the sample of events collected in the first 10 years of data taking. The results are consistent with isotropy for all cosmic ray