Digital Commons Network^™

History Of Aggiesat6: An Undergraduate Mission From Concept To Operations, Garrett M. Stevenson, John F. Connolly

Small Satellite Conference

AggieSat Laboratory (AGSL) is a student-run space vehicle development organization that trains students in systems engineering through hands-on experience in the design, building, testing, and operation of space and space-related systems.

AGSL currently supports 107 members, all but three (3) of which are undergraduates, across eight (8) projects, including an underclassmen shadowing program.

AGSL supports the initiative and learning capabilities of undergraduate members through peer mentorship and the institutionalization of knowledge across its projects to achieve success through a variety of projects.

Integrated Optical/Body-Dynamics Simulations For Pointing, Acquisition And Tracking For The Pulse-A Mission, Juan Ignacio Prieto Asbun, Elizabeth Rosario, Jiayang Xu, Catherine Todd, Robert Pitu, Tian Zhong

Small Satellite Conference

PULSE-A is the University of Chicago’s student-led 3U CubeSat mission to demonstrate a space-to-ground optical downlink at a data rate of 1 to 10 Mbps using circular polarization shift keying (CPolSK).

To avoid costly and ineffective hardware-in-the-loop simulations, we instead present software-in-the-loop simulations designed to qualify our optical and PAT systems. This allows for simulations of the coupled optical systems that include closed-loop corrections and body pointing errors.

Sailing To The Stars Iss Experiment: Results And Conclusions From Light Sail Deployments In Microgravity, Verena Padres, Parishee Bajaj, Venkata Chalamalasetty, Claire Kim, Joshua Umansky-Castro, Dionna Parina, Gabriella Elcsics-Gonzalez, Cameron Goddard, Ethan Francolla, Mason Peck, Andrew Filo, Alex Burke, Olivia Gámez Holzhaus, Heath Mills, Christopher Kelly

Small Satellite Conference

Sailing to the Stars is a mission to test the deployment of free-flying light sails on the International Space Station (ISS). The objective is to understand how different deployer designs affect the stability of both the CubeSat Deployer and the light sail during and after the deployment event. Data from the IMU onboard the deployer and video footage from wall-mounted cameras are used to analyze these dynamics. The findings shall inform the design of future missions that employ this free-flying ChipSat-sail architecture.

The hardware launched with Crew-11 on August 1^st, 2025. Nicole Ayers conducted the experiment on August …

Lighting Up The Moon: A Scheduling Framework For Cislunar Space Based Solar Power Orchestration, Vaibhav Bhosale, Andrew Woo, Ada Gavrilovska, Christopher R. Valenta, Ketan Bhardwaj

Small Satellite Conference

Surviving the Lunar Night

• 14 Earth day lunar nights
• More batteries, more mass, higher cost

Generalized Attitude Control For Small Spacecraft, Patrick Mckeen, Niclas Scheuer, Kerri Cahoy

Small Satellite Conference

Published controllers are derived for one actuator set, pointing goal, orbit, and disturbance model. Porting one means reproducing the paper, validating the implementation, then changing hardware and mission assumptions together.

Concept Of Operation Logic And Implementation Expectations For Multimode Propulsion Technology Demonstration Missions, Logan Thompson, Michael Harrigan, Theresa Sandborn, Victoria Coverstone, Joshua L. Rovey

Small Satellite Conference

Traditional single-mode propulsion systems are typically optimized for either high-thrust, short-duration maneuvers (chemical propulsion) or high-efficiency, low-thrust operations (electric propulsion). For CubeSats, which are limited by mass, volume, power, and system complexity, carrying separate propulsion systems for each mission phase is often impractical. Multimode propulsion systems overcome this limitation by combining chemical and electric propulsion within a shared architecture, allowing a single spacecraft to perform both rapid maneuvers and efficient long-duration orbit maintenance.

Demonstrating a multimode propulsion system requires more than operating two propulsion modes on the same spacecraft. Shared propellant, feed systems, thermal interactions, power usage, and transitions …

An Open-Source Gps Simulator For Small Satellites In Low Earth Orbit, Marc Oger, Ada Li, Yousif Elwishahy, Ari Cholakian, Max Xiang, Warrick Lo, David G. Michelson

Small Satellite Conference

Small Earth-observation satellites, such as the University of British Columbia's upcoming ALEASAT mission, require accurate knowledge of their orbital position so that they can target specific locations on the globe as required by the needs of their users while avoiding restricted areas as required by government regulations.

India's New Urban Development Regime And The Mirage Of Inclusion: The Urban Challenge Fund And City Economic Regions, Mathew Idiculla

Journal of Law and Public Policy

This paper examines two recent additions to India’s urban development paradigm—the Urban Challenge Fund (UCF) and City Economic Regions (CERs). The Union Budget 2025–26 introduced the UCF, with a ₹1 lakh crore corpus to position cities as growth hubs, followed by CER, offering seven city clusters ₹5,000 crore each over five years through a reform and results-based ‘challenge mode’ financing mechanism. This paper examines the policy frameworks of the UCF and CER and evaluates how they fit into broader trends in India’s urban development policy and engage with questions of social and democratic inclusion. It traces UCF and CER against …

Design And Validation Of A Modular Cubesat Framework For In-Space Assembly, Michael Kuhl, Jonah Goldstein, Kerri Cahoy

Small Satellite Conference

On-orbit assembly enables modular, adaptable satellite architectures that bypass traditional launch volume and deployment response-time constraints. The Orbital Locker (ORLO) project at the Massachusetts Institute of Technology explores this shift in space operations with a prototype-scale demonstration. Standardized satellite sub-U modules are stored within a free-flying mothercraft and assembled on demand by an onboard Cartesian gantry robot, which electrically and mechanically mates the modules into complete 1U and 2U CubeSats as a prototype-scale demonstration. Once assembled, the CubeSat is electrically verified and deployed from the mothercraft into its target orbit.

The ORLO prototype integrates a locker frame, Cartesian gantry robot, …

Design Of A Passive Magnetic Bearing Reaction Wheel For Smallsats And Its Micro-Vibration Performance, Mante Baekeland, Konstantinos Gryllias, Dirk Vandepitte, Cedric Cuypers, Niel Deckers, Tjorven Delabie, René Seiler

Small Satellite Conference

Reaction wheels are a primary source of micro-vibrations aboard satellite platforms, limiting the fine-pointing capability of spacecraft. This paper presents a novel passive magnetic bearing reaction wheel featuring a magnetic–mechanical suspension to reduce operational vibration emissions compared with conventional ball bearing systems. The proposed suspension architecture combines radial permanent magnetic bearings with an axial single-point-contact ball pivot bearing, resulting in a compact, fully passive solution tailored for the SmallSat market. To demonstrate the feasibility of the concept, a hardware prototype was manufactured and tested. Stable operation is achieved across the full operational range up to 4800 rpm. The experimental campaign …

Analysis Of Satellite Drag, Orbit Tracking, And Associated Operational Impacts In Very Low Earth Orbit (Vleo), Angela Crews, Adrian Bryant, Nicholas Ratajczyk, Alec Yenawine, Conor Benson, Chris Roseman, Sara Swenson, Greg Furlich, Rick Marcusen, Sierra Flynn, Chris Pankratz, Scott Palo, Iain Boyd, Marcin Pilinski

Small Satellite Conference

Large constellations of SmallSats in Low Earth Orbit (LEO) are now delivering critical capabilities for missions in Earth observation, navigation, and communications. Very Low Earth Orbit (VLEO), defined here as below 400 km altitude, is emerging as a new frontier for SmallSat constellations due to its unique advantages. VLEO offers improved spatial resolution for Earth observations, reduced latency, increased signal power, and a naturally self-cleaning orbital environment. However, operating spacecraft in VLEO is non-trivial as the spacecraft must overcome the residual atmosphere at these altitudes and the resulting increase in aerodynamic drag and atomic oxygen fluence. As interest grows in …

Development, Verification And Operations Of The Technology Demonstration Payloads On The Source-2 Education Mission At The University Of Stuttgart, Marlin Kanzow, Manfred Ehresmann, Daniel Galla, Sabine Klinkner, Aaron Schmidt, Max Bode, Saulius Juodkazis

Small Satellite Conference

The Stuttgart Operated University Research Cubesat for Evaluation and Education 2 (SOURCE-2) mission serves as a student-led hands-on education project at the University of Stuttgart. Developed jointly by the Institute of Space Systems (IRS), and the Student Small Satellite Association (KSat e.V.) at the University of Stuttgart, the mission enables students to apply theoretical knowledge within an interdisciplinary 6U+ CubeSat project while simultaneously serving as a technology demonstration platform for sustainable space technologies. The payload suite targets future On-Orbit Servicing (OOS), Active Debris Removal (ADR), and next-generation small satellite missions. This paper presents the development, verification strategy, and planned in-orbit …

Engineering Model Development Of The Micro Solar Sail Pieris: Single-Motor External-Torque Control And High-Accuracy Sail-Shape Realization, Yusuke Arai, Yusei Kawaguchi, Toshihiro Chujo, Kei Watanabe, Yuki Amaki, Kenichiro Takahashi, Eima Zamami, Kota Saito, Kotaro Yamauchi, Yuya Shiraishi, Shoma Abe, Kenshi Hatada, Moe Yasuda, Sota Sato, Shohei Yamasaki, Matsukawa Ohma, Yota Nakazaki, Hiroki Tanaka, Hisanobu Nomura, Katei Fu, Sora Masaki, Naoya Yamada, Hideo Yoshida, Gen Nakayama, Soma Mori, Takehisa Wada, Takashi Tomura, Hiroki Nakanishi, Yoichi Yatsu, Yasuyuki Miyazaki, Omura Soma, Go Morita, Momoko Fukunaga, Hiroyuki Ono, Takeru Nakamura

Small Satellite Conference

The 40-kg class micro solar sail “PIERIS,” equipped with a 25 m² reflective membrane, will be launched in 2027. This paper explains PIERIS’s mission design, the unique challenges of this satellite system and their solutions, and the current development status. PIERIS will be launched into LEO at approximately 600 km altitude to demonstrate two novel technologies for addressing significant disturbance torques acting on its large membrane surface.

First, it will demonstrate a technology that actively adjusts the offset between the center of action of external torques and the satellite's center of mass to control these torques. PIERIS connects the bus …

System Integration And Pre-Launch Verification Of The Scion-X Mission: Lessons Learned From A High-Fidelity Flatsat Campaign, Binson Shih-Bin Lee, Yu-Shun Wang, Tzu-Wei Hung, Shao-Yu You, Sin-Yu Tsui, I Chen, Yu-Hsiu Tien, Chieh Lung, Yi-Yu Chang, Yi-Chung Chiu, Loren Chang

Small Satellite Conference

The SCION-X (SCintillation and IONosphere eXtended) mission, a 12U CubeSat from National Central University, Taiwan, is scheduled for launch in Q3 of 2026. Designed to perform in-situ ionospheric plasma measurements, hyperspectral aerosol monitoring, and Solar EUV irradiance quantification, the spacecraft integrates a complex multi-payload suite that also includes an amateur radio APRS transponder. As the mission transitions from the Critical Design Review (CDR) phase to flight readiness, the student team implemented a comprehensive FlatSat campaign to bridge the gap between theoretical design and physical reality. This paper presents the "Next on the Pad" status of SCION-X, focusing on the critical …

Flight Path: A Microservices Message-Passing Flight Software Architecture For Cesiumastro Element One Satellite, Dylan Pfeifer, Russell Gleason, Nick Bourdon, David Gholami, Daniel Zilavy, Dan Barrera, John Storey

Small Satellite Conference

The CesiumAstro Element One Satellite, designed for multi-band phased array communications in Low Earth Orbit, required a new approach to satellite flight software. The variety of new devices on the satellite bus, fast-paced development schedule, and combination of in-house and purchased subsystems required flight software to incorporate a mixture of programming languages, a mixture of open source and proprietary software, and a pairing of high Technology Readiness Level (TRL) frameworks with new, first-flight software. To achieve integration, assembly, and test on compressed schedule, the flight software paradigm focused on microservices-brokered access to hardware and a message-passing based coordination between software …

Mirzo Ulugbek 6u Cubesat: Modular Structural Design, Analysis, And Ait For Earth Observation Mission Deployment, Hery Steven Mindarno, Louis Alferd Gauvain Lefort, Khabibullokh Olimjon Ugli Azimjonov, Iwase Tomoya, Aashish Sarode, Chinathip Narongphun, Reynel Josue Galindo Rosales, Mehmet Esit, Hanadi Abdalla, Kaito Hamada, Victor Schulz, Jose Rodrigo Cordova Alarcon, Hirokazu Masui, Takashi Yamauchi, Necmi Cihan Orger, Kentaro Kitamura, Mengu Cho

Small Satellite Conference

The Mirzo Ulugbek satellite is a 6U CubeSat designed for Earth Observation (EO) and equipped with a high-resolution camera system. Developed in collaboration between the Kyushu Institute of Technology (Kyutech) and the Uzbekistan Space Agency, Mirzo Ulugbek will be deployed directly from a launch vehicle into a Sun-Synchronous Orbit (SSO) to enable continuous Earth observation. This paper presents the modular structural design, analysis, and Assembly, Integration, and Testing (AIT) processes that ensure the satellite’s robustness during launch and reliable operation in orbit. The modular design allows efficient integration, disassembly, and reassembly of subsystems, enhancing flexibility during testing. This design approach …

Operating The Sparcs Space Telescope, Kaitlyn Ashcroft, Daniel Jacobs, Evgenya Shkolnik, Judd Bowman, Matthew Kolopanis, Tahina Ramiaramanantsoa, Joe Dubois, Titu Samson, Maria C. Ladwig, Joshua Sink, Ella Greetis, Paulo Gonzalez Soto, Ysabella Mcauliffe, Lilian Prigge, Aaron Boumias, Ishi Shah, Hetvi Patel, Joseph Dukowitz, David R. Ardila, April Jewell, Mark Swain, Shouleh Nikzad, Christophe Basset, Joe Llama, Paul Scowen, Sarah Peacock, Dawn Gregory, Nathaniel Streubel, Logan Jensen, Johnathan Gamaunt, Travis Barman, Victoria Meadows

Small Satellite Conference

Star-Planet Research CubeSat (SPARCS) is a 6U space telescope dedicated to monitoring flares from low-mass stars in the ultraviolet (UV). SPARCS observations of flares across 20 solar systems will be used to better understand the atmospheric evolution, chemistry, and potential habitability of the most common type of exoplanets. SPARCS’ camera uses delta-doped CCD detectors, which are several times more sensitive in the UV than previous detectors. This is technology necessary for future studies of habitable-worlds and star–planet interactions by future missions, such as NASA’s flagship mission, the Habitable Worlds Observatory. SPARCS orbits in the “6am terminator” orbit, which provides a …

Multi-Modal Detection And Attribution Algorithm For Low Power Edge Compute Hardware, Margaret Michelsen, Jackson Gardner, Shawn Jones, Jackson Kulik, Mario Harper

Small Satellite Conference

We present a multi-modal detection and attribution algorithm for maritime domain awareness designed to execute on low-power FPGA-based edge compute hardware. Spaceborne hyperspectral sensors generate data volumes far exceeding practical downlink capacity, yet the onboard compute platforms available for real-time processing operate within strict power, memory, and radiation constraints. The proposed algorithm fuses RX anomaly scoring, ACE matched filtering, multi-spectral index evaluation, wake-aware spatial scoring, and spectral glint cancellation in a five-stage pipeline designed for hardware-efficient execution. Mixed-precision quantization assigns FP16 arithmetic to covariance-sensitive stages and INT8 to threshold-based spectral computations, achieving a 12.4× model size reduction and 6.1× compute …

Mechanical Design Of A 100-Chipsat Suborbital Deployer For The Descent Mission, Richard Zheng, Ocean Saric, Will Kully, Henry Wolf, Peter Nguyen, Sarah Cooper, Christopher Draikiwicz, Adam Yonas, Joshua Umansky-Castro, Mark Lohatepanont, H. Todd Smith

Small Satellite Conference

DeSCENT (Demonstration of Suborbital ChipSats Ejected from New Shepard Test Flight) aims to deploy 100 ChipSats –gram-scale spacecraft– from Blue Origin’s New Shepard launch vehicle. Led by students of the Cornell University Space Systems Design Studio in collaboration with JHU-APL, the experiment characterizes ChipSat dispersion and free-fall kinematics from the K´arm´an line while exploring their potential for distributed sensing for atmospheric science. This paper outlines the design, integration, and test of the ChipSat deployer to be mounted on the New Shepard propulsion module in coordination with the JHU-APL JANUS payload. Details are shared on the overall mechanical design, driven by …

Lunar Intelligent Navigation Neural Architecture (Linna), Gleisson Bezerra, Pedro Fernandes Varela, Felipe Oliveira Tavares, Renan Guilherme Menezes, Lidia Shibuya Sato, Luis Eduardo Loures

Small Satellite Conference

This paper presents the design and preliminary validation of the Lunar Intelligent Navigation Neural Architecture (LINNA) payload, a technology demonstration integrated into the SelenITA mission—Brazil’s first lunar CubeSat. The experiment is motivated by the future needs for autonomous state estimation in the Very Low Lunar Orbit (VLLO) regime, where Mascon-induced gravitational anomalies challenge traditional inertial-only navigation. The primary goal of LINNA is to evaluate the feasibility of conducting onboard, vision-based positioning as a future auxiliary system for autonomous Guidance, Navigation, and Control (GNC). LINNA operates as a standalone technological experiment, using a nadir-pointing optical sensor to capture lunar surface data …

The Solar Neutrino And Astro-Particle Physics (Snappy) Cubesat Development, Brian M. Sutin, Edward Bierens, Brian Doty, Atri Dutta, Jonathan Folkerts, Brooks Hartsock, Kyle Messick, Holger Meyer, Daniel Reichart, Nick Solomey, Mark Crystal, Miguel Rodriguez-Otero, Evgeny Kuznetsov, Robert Mctaggart, James Cutler, Joel Steinkraus, Jose G. Rivera

Small Satellite Conference

The SNAPPY CubeSat, which was launched May 3, 2026, will demonstrate and space qualify the νSol neutrino-detection technology. The NASA Innovative Advanced Concepts (NIAC) program funded the νSol study to determine the scientific and technical challenges associated with a solar neutrino detector operating in close orbit around the Sun, such as a Parker Solar Probe–like orbit at 7 solar radii and potentially as close as 3 solar radii. This program began in 2017 and has continued with funding from NIAC and NASA’s Heliophysics Division. The νSol technology detects solar neutrinos using a gallium isotope which decays by …

Neutron-2: A Dual Cubesat Mission For Three-Dimensional Mapping Of Neutron Radiation In Low Earth Orbit, Miguel Nunes, Piper Kline, Kenoi Salvador, Peter Englert, William Edmonson, Craig Hardgrove, Erik B. Johnson

Small Satellite Conference

Neutron interactions in Low Earth Orbit (LEO) remain a poorly characterized component of the space radiation environment, despite their potential to significantly impact spacecraft electronics, materials, and crew health. Unlike primary charged particles, most neutrons in LEO are secondary products generated when high-energy protons and heavy ions from galactic cosmic rays or solar energetic particle events interact with atoms and molecules in Earth’s atmosphere. The production rate of these secondary neutrons is strongly dependent on atmospheric density, which varies with altitude, geomagnetic position, and solar activity, leading to spatial and temporal variability that is not well captured by current radiation …

Results From Nasa’S Distributed Spacecraft Autonomy Project’S Extended Mission On Starling, Caleb Adams, Michael Iatauro, Brian Kempa, K. Michael Dalal, Sergei Gridnev, Michael Ho, Caroline Lassiter

Small Satellite Conference

The Distributed Spacecraft Autonomy (DSA) experiments on Starling 1.0 marked a significant milestone as the first demonstration of fully autonomous distributed operations on multiple spacecraft. DSA demonstrated the ability to adapt to measurements of Total Electron Content (TEC) and visibility of GPS satellites in a fully distributed autonomous manner. In subsequent experiments, DSA 1.5 focused on improving its science proxy towards a higher fidelity data product computed at the edge, as well as addressing emergent autonomy needs from Starling 1.0, particularly local autonomy and robust crosslink data transfer.

The purpose of improving the TEC measurement was to demonstrate that high-quality …

Ground-Based Magnetic Attitude Determination For Low-Cost Cubesat Missions, Johnny Mccaskill, Evan Jellison, Jackson Holden, Blagoy Rangelov

Small Satellite Conference

This work presents the development and validation of a low-cost attitude determination approach for small satellites operating in low Earth orbit using only magnetometer data. The proposed method leverages measurements of Earth’s magnetic field collected by onboard magnetometers in conjunction with orbital information processed on the ground. By comparing observed magnetic field vectors with reference values generated from the World Magnetic Model, the system estimates the satellite’s orientation with minimal onboard processing requirements. The resulting attitude solution is then transmitted back to the spacecraft for potential use in attitude control or mission planning.

Because all computation occurs on the ground, …

Successful Deployment Of The First Free-Flying Light Sail: Results From The Cornell University Alpha Cubesat Mission, Joshua Umansky-Castro, Jonathan Ma, Duncan Mcdonald, Damian Hackett, Zach Garcia, Lauren Greenhill, Eric Zhang, Cameron Goddard, Y. Deemo Chen, Matthew Hurford, Apurva Hanwadikar, Grace Tang, Gillis Lowry, Mason Peck, Andrew Filo, Alex Burke

Small Satellite Conference

Alpha CubeSat is a mission led by students of the Cornell University Space Systems Design Studio to deploy a ChipSat-equipped free-flying retroreflective light sail in LEO. The spacecraft launched with NASA CSLI on the NG-23 ISS cargo resupply mission on September 14th, 2025 and deployed from the space station as part of NRCSD-29 on December 2nd, 2025. The mission was a success, with all primary mission objectives accomplished. This paper presents the mission results, with insights into the critical decision-making made within the first 48hrs of the mission to deploy and establish contact with the light sail payload. From conception …

A Resilient-By-Design Command & Data Bus Architecture For Small Satellites, Jay Deorukhkar, Peter W. Pachowicz

Small Satellite Conference

As the proliferation of small satellites continues at a staggering rate, so does the mission complexity and criticality of ensuring reliability throughout the satellite bus. Specifically, the command and data bus connecting subsystems within a small satellite can experience radiation-induced faults that potentially derail the satellite’s intended operation, necessitating architecture- and protocol-level fault management. This paper presents an innovative ”Resilient-by-design” communication bus that incorporates a dual-hot redundant architecture and an intelligent, adaptive protocol to coordinate messages and manage faults in an autonomous, self-recoverable manner.

Arcstone: Calibration Of Lunar Spectral Reflectance From Space - One Year On-Orbit Performance, Michael Cooney, Cindy Young, Mark Banchy, Noah Ryan

Small Satellite Conference

Arcstone is a 6U CubeSat launched June 2025 to demonstrate in-space validation of an approach for measuring the lunar disk reflectance to a high degree of accuracy, which will be used to create a new lunar model for calibration of reflected solar instruments. The mission was funded via NASA's InVEST program and had design input, analysis, management and operation from NASA Langley Research Center with multiple collaborators doing additional design work, calibration, and analysis. The Arcstone instrument is a hyperspectral instrument spanning the spectral range from 350 nm to 2300 nm. Arcstone views the Moon and the Sun controlling detector …

I Think I'M Falling For You: Xvi Mission's Final Days In Orbit, Lee Jasper, Erika A. Chavez, Andrew A. Knuth, Adam T. Reinelt, Cameron Shideler, Jayce Thedford, Declan Byrne, Michael Dompke

Small Satellite Conference

The Air Force Research Lab’s (AFRL) Small Satellite Portfolio (SSP) created the XVI CubeSat which was launched on SpaceX’s Transporter 8 in June of 2023. 

XVI remained operational from June 2023 until its deorbit on January 7, 2026. Throughout its lifetime, the team maintained the vehicle and used XVI for experimentation and training purposes. However, due to the sun's low activity around this time frame, and intentionally lowering the drag/cross sectional area of XVI on orbit, the spacecraft was able to stay in orbit for months beyond its initial predicted re-entry. 

Between January 4th and January 7th, XVI was tracked …

Student-Led Operational Framework And Initial On-Orbit Lessons Learned In Multifunctional Membrane Mission Helios-R, Daichi Ishido, Masanori Matsushita, Yuki Takao, Ahmed Kiyoshi Sugihara, Osamu Mori, Tetsuya Kusumoto, Yukiho Ohtsuki, Yuto Nakagawa, Haruhito Ohki, Kaho Nakagawa, Shusaku Tsuruya, Masaaki Shigematsu, Fumiya Aono, Kaine Amakawa, Akihiro Kushima, Ayumu Kawasaki, Jiro Takada, Hinata Yamamoto, Reiji Kobayashi, Ryuki Shimizu, Hiroaki Yoneda, Hirona Kawahara, Junya Taguchi, Satsuki Yokohori, Tomoyo Shibata, Kazuki Hamatsuki, Mao Takata, Toshiyuki Hori, Hiroaki Ito, Akihito Watanabe, Sota Kume, Atsuki Ochi, Takuma Komaba, Hiraku Sakamoto, Atsushi Shirane, Kenichi Okada, Ayako Torisaka, Nobukatsu Okuizumi, Yasutaka Satou, Yasuyuki Miyazaki, Atsuhiko Senba

Small Satellite Conference

To enable a broad range of space activities, small satellites require innovative solutions for lightweight, high-power generation. HELIOS-R (Harvesting Energy with Lightweight Integrated Origami Structure), co-developed by JAXA, Institute of Science Tokyo, and Sakase Adtech Co., Ltd., is a pioneering multifunctional membrane component. Launched in December 2025 as part of the RAISE-4 mission, it integrates thin-film solar arrays, a 5G array antenna, and an interferometer antenna on a 1-meter equilateral triangular membrane. This paper details a reliable operational framework developed by a diverse, student-led team from JAXA/ISAS to address stringent operational constraints and technical challenges arising from severe launch delays. …

Long-Term Software-Defined Formation Flying And Its Application To Space Mimo Communications, Takaya Inamori, Keita Tanaka, Kiyoshi Kinefuchi, Shigeru Sunada, Yousuke Kawabata, Ayumu Nono, Takumi Noro, Yukihisa Otani, Norihide Miyamura, Eiji Okamoto, Yuma Abe, Yoshimi Fujii, Hiroyuki Tsuji, Takuya Okura, Rei Kawashima, Takuto Ogawa, Tomoyuki Miyashita

Small Satellite Conference

Formation flying of multiple small satellites is expected to enable novel space missions that cannot be achieved by a single satellite. Small sized satellites are strongly affected by environmental disturbances and have strict constraints on mass, volume, and power. This study focuses on characteristics that become prominent as satellites are miniaturized, such as the increased influence of space environment and enhanced interactions among onboard components. By utilizing these effects, the research aims to realize propellant-less, software-defined formation flying. The proposed technologies are applied to space MIMO (multiple input multiple output) communications, in which communication capacity is improved by controlling the …