Fast-Convergence Reinforcement Learning for Routing in LEO Satellite Networks by Zhaolong Ding, Huijie Liu, Feng Tian, Zijian Yang, Nan Wang

“…Fast convergence routing is a critical issue for Low Earth Orbit (LEO) constellation networks because these networks have dynamic topology changes, and transmission requirements can vary over time. …”
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GNSS Radio Frequency Interference Monitoring from LEO Satellites: An In-Laboratory Prototype by Micaela Troglia Gamba, Brendan David Polidori, Alex Minetto, Fabio Dovis, Emilio Banfi, Fabrizio Dominici

“…The disruptive effect of radio frequency interference (RFI) on global navigation satellite system (GNSS) signals is well known, and in the last four decades, many have been investigated as countermeasures. Recently, low-Earth orbit (LEO) satellites have been looked at as a good opportunity for GNSS RFI monitoring, and the last five years have seen the proliferation of many commercial and academic initiatives. …”
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Undifferenced Kinematic Precise Orbit Determination of Swarm and GRACE-FO Satellites from GNSS Observations by Peng Luo, Shuanggen Jin, Qiqi Shi

“…Low Earth Orbit (LEO) satellites can be used for remote sensing and gravity field recovery, while precise orbit determination (POD) is vital for LEO satellite applications. …”
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A Novel Feeder Link Handover Strategy for Backhaul in LEO Satellite Networks by Yuke Zhou, Jiang Liu, Ran Zhang, Man Ouyang, Tao Huang

“…Thanks to their wide coverage and relatively low latency compared to geosynchronous satellites, Low Earth Orbit (LEO) satellite networks have been regarded as one of the most promising solutions to provide global broadband backhaul for mobile users and IoT devices. …”
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Can the Orbital Debris Disease Be Cured Using Lasers? by Stefan Scharring, Jürgen Kästel

“…Ground-based high-power lasers are, in principle, able to de-orbit any kind of space debris object from the low Earth orbit (LEO) by remotely inducing laser-ablative momentum. …”
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Performance Estimate of a Spin-Stabilized Drag Sail for Spacecraft Deorbiting by Lorenzo Niccolai, Giovanni Mengali

“…In this context, drag-enhancing devices such as drag sails are currently an active field of research and development because of their ability to make a spacecraft decay from low Earth orbit without the need for any on-board propellant. …”
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Sky Radio Quiet Zones for Mitigating RFI From Large-Scale NGSO Satellites to Ground Radio Astronomy System by Hlaing Minn, Zhixuan Fan

“…We evaluate the RFI characteristics with/without SRQZs for a few representative ground RAS receiver locations under a low earth orbit SatCom system as well as a medium earth orbit SatCom system. …”
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Transient Thermal Analysis of 1U Modular Cubesat Based on Passive Thermal Control System by Sunidhi Kubade, Shruti Kulkarni, Pankaj N. Dhatrak

“…Using graphite fiber thermal strap and aerogel multi-layer insulation for internal components, the 1-unit modular cube satellite is found to be more suitable under low earth orbit conditions.…”
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Dynamics and Control of Satellite Formations Invariant under the Zonal Harmonic Perturbation by Stefano Carletta

“…The effectiveness of the model and of the guidance strategy is verified on some scenarios of interest for formations operating in a sun-synchronous and a medium-inclination low Earth orbit and a medium-inclination lunar orbit.…”
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Connecting the other half: Exploring options for the 50% of the population unconnected to the internet by del Portillo, Inigo, Eiskowitz, Skylar, Crawley, Edward F, Cameron, Bruce G

“…In particular, constellations of geostationary orbit (GEO) satellites, large constellations of medium Earth orbit (MEO) and low Earth orbit (LEO) satellites, and high- and low-altitude aerial platforms are studied. …”
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Performance Analysis of Algorithms for Coordination of Earth Observation by CubeSat Constellations by Kennedy, Andrew K, Cahoy, Kerri L

“…The algorithms are simulated for 24 h with an 18 satellite Low Earth Orbit constellation. Three orbital geometries are examined, with different configurations of intersatellite and satellite-to-ground communications links to share planning information. …”
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Small Mirrors for Small Satellites: Design of the Deformable Mirror Demonstration Mission CubeSat (DeMi) Payload by Douglas, Ewan S, Allan, Greg, Morgan, Rachel, Holden, Bobby G, Gubner, Jennifer, Haughwout, Christian, do Vale Pereira, Paula, Xin, Yinzi, Merk, John, Cahoy, Kerri L

“…<jats:p>The Deformable Mirror Demonstration Mission (DeMi) is a technology demonstration CubeSat to test a 140 actuator micro-electromechanical system (MEMS) deformable mirror in low-Earth orbit. Such mirrors can provide precise wavefront control with low size, weight, and power per actuator. …”
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Evolutionary Debris Modeling of LEO and Cis-Lunar Space by Pasiecznik, Celina

“…With the advent of large satellite constellations in Low Earth Orbit (LEO) and planned return missions to the Moon, the risk created by fragmentation events in both LEO and cis-lunar space motivates an analysis of space debris evolution in these regions. …”
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Millikelvin temperature control system for the ExoplanetSat Imager by Li, Luyao

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NASA HIRDLS and ESA MIPAS data product comparison (And other ground data) by Hepplewhite, C, Barnett, J, Dudhia, A, Gille, J, Waterfall, A

“…The HIRDLS instrument is a limb viewing infra-red radiometer on the NASA Aura spacecraft in a sun synchronous low earth orbit and obtains measurements of the composition of the atmosphere covering the whole Earth each day. …”

Dynamics of a flexible tethered satellite system utilising various materials for coplanar and non-coplanar models by Aw, Aaron Teik Hong, Varatharajoo, Renuganth

“…In addition, the air drag perturbation is also considered since the entire TSS is flown around the Low Earth Orbit (LEO), where the air-drag perturbation is dominant. …”
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Dynamic Resource Allocation for Multi-Satellite Cooperation Networks: A Decentralized Scheme Under Statistical CSI by Meihui Zhao, Hanxiao Yu, Jianxiong Pan, Yifeng Jin, Guocheng Lv, Ye Jin

“…The densification of low-Earth orbit (LEO) constellations and the development of inter-satellite links enable the cooperative transmission of multiple satellites. …”
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Space Biology Research and Biosensor Technologies: Past, Present, and Future by Ada Kanapskyte, Elizabeth M. Hawkins, Lauren C. Liddell, Shilpa R. Bhardwaj, Diana Gentry, Sergio R. Santa Maria

“…In light of future missions beyond low Earth orbit (LEO) and the potential establishment of bases on the Moon and Mars, the effects of the deep space environment on biology need to be examined in order to develop protective countermeasures. …”
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Investigation of Low-Cost FDM-Printed Polymers for Elevated-Temperature Applications by Jan Lukas Storck, Guido Ehrmann, Uwe Güth, Jana Uthoff, Sarah Vanessa Homburg, Tomasz Blachowicz, Andrea Ehrmann

“…The polymers with the highest dimensional stability and mechanical properties after different temperature treatments were periodically heat-treated between -40 °C and +80 °C in cycles of 90 min, similar to the temperature cycles a microsatellite in the low Earth orbit (LEO) experiences. While none of the materials under investigation fully maintains its dimensions and mechanical properties, filled poly(lactic acid) (PLA) filaments were found most suitable for applications under these thermal conditions.…”
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Sensitivity of the Gravity Model and Orbital Frame for On-board Real-Time Orbit Determination: Operational Results of GPS-12 GPS Receiver by Eunhyouek Kim, Seungyeop Han, Amer Mohammad Al Sayegh

“…Moreover, the practical performance of on-board real-time orbit determination logic is verified by updating the software of the spaceborne GPS receiver, GPS-12, on DubaiSat-2 operating at low Earth orbit (LEO). The results show that the position accuracy of on-board real-time orbit determination logic in GPS-12 is improved by 59%, from 12.6 m (1 &#963;) to 5.1 m (1 &#963;), after applying the proposed methods. …”
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