Visibility Analysis of Domestic Satellites on Proposed Ground Sites for Optical Surveillance by Jung Hyun Jo1, Jin Choi, Hong-Kyu Moon, Young-Jun Choi, Hong-Suh Yim, Jang-Hyun Park, Eun-Seo Park, Jong-Uk Park

“…In order to accomplish these objectives, we analyzed the visibility for sun-synchronous orbit satellites, low earth orbit satellites, middle earth orbit satellites and domestic satellites as well as the continuous visibility along with the fictitious satellite ground track, and calculate the effective visibility. …”
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A Compact Particle Detector for Space-Based Applications: Development of a Low-Energy Module (LEM) for the NUSES Space Mission by Riccardo Nicolaidis, Francesco Nozzoli, Giancarlo Pepponi, on behalf of the NUSES Collaboration

“…The LEM will be a particle spectrometer devoted to the observation of fluxes of relatively low-energy electrons in the 0.1–7-MeV range and protons in the 3–50 MeV range along the Low Earth Orbit (LEO) followed by the hosting platform. …”
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Stability of Wafer-Scale Thin Films of Vertically Aligned Hexagonal BN Nanosheets Exposed to High-Energy Ions and Reactive Atomic Oxygen by Shiyong Huang, Zhi Kai Ng, Hongling Li, Apoorva Chaturvedi, Jian Wei Mark Lim, Roland Yingjie Tay, Edwin Hang Tong Teo, Shuyan Xu, Kostya (Ken) Ostrikov, Siu Hon Tsang

“…Additionally, using O₂/Ar/H₂ plasmas to simulate the low Earth orbit (LEO) environment, it is demonstrated that the simulated plasma had very weak influence on the hBNNS surface structure and thickness. …”
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Impacts of GNSS RO Data on Typhoon Forecasts Using Global FV3GFS with GSI 4DEnVar by Tang-Xun Hong, Ching-Yuang Huang, Chen-Yang Lin, Guo-Yuan Lien, Zih-Mao Huang, Shu-Ya Chen

“…The radio signals emitted from the global navigation satellites system (GNSS) are received by these low Earth orbit (LEO) satellites to provide the so-called bending angle accounting for bending of the rays after penetrating through the atmosphere. …”
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Connecting space missions through NGSO constellations: feasibility study by Houcine Chougrani, Oltjon Kodheli, Ali Georganaki, Jan Thoemel, Chiara Vittoria Turtoro, Frank Zeppenfeldt, Petros Pissias, Mahulena Hofmann, Symeon Chatzinotas

“…Among the studied space internet systems (i.e., Starlink, OneWeb, O3b mPOWER), O3b mPOWER stands out as the most suitable system allowing permanent coverage of low earth orbit (LEO) space missions with data rates that can reach up to 21 Mbps per satellite. …”
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Impact of Attitude Model, Phase Wind-Up and Phase Center Variation on Precise Orbit and Clock Offset Determination of GRACE-FO and CentiSpace-1 by Junjun Yuan, Shanshi Zhou, Xiaogong Hu, Long Yang, Jianfeng Cao, Kai Li, Min Liao

“…Currently, low Earth orbit (LEO) satellites are attracting great attention in the navigation enhancement field because of their stronger navigation signal and faster elevation variation than medium Earth orbit (MEO) satellites. …”
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Centimeter-Level Orbit Determination for TG02 Spacelab Using Onboard GNSS Data by Kai Li, Xuhua Zhou, Wenbin Wang, Yang Gao, Gang Zhao, Enzhe Tao, Kexin Xu

“…Tiangong-2, the second Chinese manned spacecraft, was launched into low Earth orbit on 15 September 2016. The dual-frequency geodetic GNSS receiver equipped on it is supporting a number of scientific experiments in orbit. …”
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Optimal attitude control for solar array orientation by Li Qiang, Jiang Yu, Zhang Yan, Gao Yu, Guo Xiaohong, Cui Ruifei, Wang Sichen, Guo Wenming, Lv Tiexin, Cai Lifeng, Zhang Lei, Li Xiaoying, Lin Haichen

“…For low Earth orbit (LEO) satellites, solar panel is a firstly key device to convert the solar radiation into the electric power to supply the energy consume. …”
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Understanding the Limits of LoRa Direct-to-Satellite: The Doppler Perspectives by Muhammad Asad Ullah, Gianni Pasolini, Konstantin Mikhaylov, Hirley Alves

“…Earlier studies have extensively investigated the link budget and the network scalability aspects, confirming the feasibility of integrating LoRa with Low Earth Orbit (LEO) satellites. However, only a few studies examine the influence of the Doppler effect on LoRa DtS performance. …”
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QUARC: Quantum Research Cubesat — A Constellation for Quantum Communication by Luca Mazzarella, Christopher Lowe, David Lowndes, Siddarth Koduru Joshi, Steve Greenland, Doug McNeil, Cassandra Mercury, Malcolm Macdonald, John Rarity, Daniel Kuan Li Oi

“…Small satellites, CubeSats in particular, in low Earth orbit are a relatively low-cost alternative to traditional, large platforms. …”
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Radiation on Earth or in Space: What Does It Change? by Juliette Restier-Verlet, Laura El-Nachef, Mélanie L. Ferlazzo, Joëlle Al-Choboq, Adeline Granzotto, Audrey Bouchet, Nicolas Foray

“…By considering the probabilities of the impact of IRS against spacecraft shielding, three conclusions can be drawn: (1) The impacts of heavy ions are rare and their contribution to radiation dose may be low during low Earth orbit; (2) secondary particles, including neutrons emitted at low energy from the spacecraft shielding, may be common in deep space and may preferentially target surface tissues such as the eyes and skin; (3) a “bath of radiation” composed of residual rays and fast neutrons inside the spacecraft may present a concern for deep tissues such as bones and the cardiovascular system. …”
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Effects of Topside Ionosphere Modeling Parameters on Differential Code Bias (DCB) Estimation Using LEO Satellite Observations by Yifan Wang, Mingming Liu, Yunbin Yuan, Guofang Wang, Hao Geng

“…Given the potential of low-earth orbit (LEO) satellites in terms of navigation enhancement, accurately estimating the differential code bias (DCB) of GNSS satellites and LEO satellites is an important research topic. …”
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NASA GeneLab Platform Utilized for Biological Response to Space Radiation in Animal Models by J. Tyson McDonald, Robert Stainforth, Jack Miller, Thomas Cahill, Willian A. da Silveira, Komal S. Rathi, Gary Hardiman, Deanne Taylor, Sylvain V. Costes, Vinita Chauhan, Robert Meller, Afshin Beheshti

“…A range of ions from protons to iron particles with doses from 0.1 to 1.0 Gy for ground studies, as well as samples flown in low Earth orbit (LEO) with total doses of 1.0 mGy to 30 mGy, were utilized. …”
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Performance Evaluation of CentiSpace Navigation Augmentation Experiment Satellites by Lin Chen, Feiren Lv, Qiangwen Yang, Tulin Xiong, Yuqi Liu, Yi Yang, Hongchen Pan, Suisheng Wang, Min Liu, Renlun He, Duo Zheng, Lingzhi Zhang, Yundi Jin

“…This paper presents the performance analysis of CentiSpace low earth orbit (LEO) experiment satellites. Distinguishing them from other LEO navigation augmentation systems, the co-time and co-frequency (CCST) self-interference suppression technique is employed in CentiSpace to mitigate significant self-interference caused by augmentation signals. …”
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Towards sustainable human space exploration—priorities for radiation research to quantify and mitigate radiation risks by Anna Fogtman, Sarah Baatout, Bjorn Baselet, Thomas Berger, Christine E. Hellweg, Piers Jiggens, Chiara La Tessa, Livio Narici, Petteri Nieminen, Laure Sabatier, Giovanni Santin, Uwe Schneider, Ulrich Straube, Kevin Tabury, Walter Tinganelli, Linda Walsh, Marco Durante

“…The ESA/SciSpacE Space Radiation White Paper identifies those topics and underlines priorities for future research and development, to enable safe human and robotic exploration of space beyond Low Earth Orbit.…”
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THE IMPACT OF ORBITAL AND CLOCK ERRORS ON POSITIONING FROM LEO CONSTELLATIONS AND PROPOSED ORBITAL SOLUTIONS by A. El-Mowafy, K. Wang, K. Wang, Y. Li, Y. Li, A. Allahvirdi-Zadeh

“…Two approaches are discussed for the estimation and prediction of the orbits of low earth orbit (LEO) satellites that can be used for navigation. …”
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Satellite-Based Non-Terrestrial Networks in 5G: Insights and Challenges by Ata Sattarzadeh, Yun Liu, Abdelrahim Mohamed, Ruiliang Song, Pei Xiao, Zhiqun Song, Haipeng Zhang, Rahim Tafazolli, Chuanfeng Niu

“…Among different NTNs, low earth orbit (LEO) satellites have gained increasing attention in recent years and several companies have filed federal communication commission (FCC) proposals to deploy their LEO constellation in space. …”
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Detection and Analysis of Radiation Doses in Multiple Orbital Space during Solar Minimum by Juyu Wang, Shenyi Zhang, Guohong Shen, Ying Sun, Binquan Zhang, Zheng Chang, Chunqin Wang, Donghui Hou, Zhe Yang

“…Based on orbit detection data acquired by a positive channel Metal Oxide Semiconductor (PMOS) dose detectors on FY4-A (GEO), BD3-M15 (MEO), and YH1-01A (LEO) between November 2018 and November 2022, investigations reveal variations in total dose and the mechanism of radiation dose increase within the geostationary earth orbit (GEO), medium earth orbit (MEO), and low earth orbit (LEO) during the transition from the 24th to the 25th solar cycles. …”
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New Higher-Order Correction of GNSS RO Bending Angles Accounting for Ionospheric Asymmetry: Evaluation of Performance and Added Value by Congliang Liu, Gottfried Kirchengast, Stig Syndergaard, Marc Schwaerz, Julia Danzer, Yueqiang Sun

“…In this study, a new higher-order bending angle RIE correction named “Bi-local correction approach” has been implemented and evaluated, which accounts for the ray path splitting of the dual-frequency GNSS signals, the altitude of the low Earth orbit (LEO) satellite, the ionospheric inbound (GNSS to tangent point) vs. outbound (tangent point to LEO) asymmetry, and the geomagnetic field. …”
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Stability of CubeSat Clocks and Their Impacts on GNSS Radio Occultation by Amir Allahvirdi-Zadeh, Joseph Awange, Ahmed El-Mowafy, Tong Ding, Kan Wang

“…Typically, GNSS-RO operates by remotely sensing the bending angles of an occulting GNSS signal measured by larger low Earth orbit (LEO) satellites. However, these satellites are faced with complexities in their design and costs. …”
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