Digital Commons Network^™

Tracking Assembly For The Pulse-A Optical Ground Station, Rodrigo Spinola E Castro, Ashley Ashiku, Elizabeth Rosario, Juan Ignacio Prieto Asbun, 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).

Iterative Determination Of Pressures In The Refueling Process Of The Pw-Sat3 Satellite, Jakub Paziewski, Michał Niewiadomski, Paweł Senda, Jakub Dresler, Mikołaj Kmin, Kacper Kordek

Small Satellite Conference

PW-Sat3 is a 3U CubeSat being developed by the Students’ Space Association at the Warsaw University of Technology. It is a third satellite in the PW-Sat series, following PW-Sat with a deorbitation tail and PW-Sat2 with a deorbitation sail. PW Sat3 will be equipped with a warm-gas propulsion system and an authorial AOCS written by the students.

The final goal is to perform orbital decay by lowering the perigee. Secondary goals include taking pictures of the planet and evaluating innovative Earth horizon sensors using the satellite as a platform for amateur radio experiments.

Using Ai And Photometry To Locate And Characterize Exoplanets For Small Satellites, Ella Vosburg, Herb Hess, Christine Page

Small Satellite Conference

This poster reports a theoretical design of a spectrometer and deformable mirrors on a CubeSat, coding for preprocessing of data, and how an AI model will be used in postprocessing with Jupiter and its moons as a test case.

Searching for and characterizing exoplanets has driven the design and execution of many observational space missions, as demonstrated by several well-known large telescopes. However, some challenges to expanding our knowledge of the universe remain, including competitive observation times and high cost. This leads to the incumbent methods of using archival transit and spectroscopic data.

Smaller satellites have an advantage on these …

Cubesats For Climate Change Monitoring (C3m): Demonstrating Interferometric Ir Payloads Scalable To Constellations, Miguel Nunes, Paul Lucey, Noah Thompson, Jharrell Sim, Samantha Mallari, Dennis Sarsozo Jr., Junjie Huang, Jaycee Hasegawa, Mari Murillo

Small Satellite Conference

• Project Objective: Develop a compact, low-power IR spectrometer for a modular 1U CubeSat.
• Mission Motivation: Enable timely monitoring of climate hazards, wildfires, volcanic activity, and greenhouse gases.
• Core Demonstration: Validated end-to-end integration and operation of a thermal IR payload on the Artemis CubeSat Kit.
• Constellation Vision: Establish a scalable, low-cost architecture for high-revisit climate monitoring.

Experimental And Analytical Investigation Of Low-Power Resistojet Performance For Small Satellites, Ryan Mcpherson, Daniel Kichma, Nathan Paes, Benoit Larouche, Robert E. Zee

Small Satellite Conference

• Small satellite missions increasingly require propulsion systems that can deliver meaningful maneuverability within tight limits on mass, volume, and power.
• Water resistojet thrusters are attractive for this class of spacecraft because they are simple, nontoxic, and compatible with typical small satellite power budgets, but achieving efficient performance at low power remains challenging.
• This work addresses that gap through coupled thermo-fluid modeling, parametric trade studies, and experimental characterization of low-power water resistojet prototypes using a low-cost vacuum testbed. 

Power Simulation Framework For Korucusat-2 Using Freeflyer, Sahil Singh, Annabel Rong, Mukund Karthikeyan

Small Satellite Conference

A FreeFlyer-based power simulation was developed for KORUCUSAT-2, a low Earth orbit CubeSat designed to monitor silicon-anode battery behavior in space. The spacecraft model uses body-mounted solar panels with five modules on each of the +X, -X, +Y, and -Y faces. The simulation integrates orbital propagation, Earth shadowing, Sun-incidence angle, ground-station visibility, mode-dependent subsystem loads, and battery-state propagation to estimate electrical margin. Battery watt-hours and normalized state of charge are updated at each 30 s step so that critical, low-power, operations, and transmission modes can be evaluated against stored-energy limits. The framework provides a traceable prelaunch test bench for power-system …

Toward Plug-And-Play Sensor Integration: A Multi-Protocol Hardware Bridge For Nanosatellites, Pawan Kumar, Moritz P. Heimbach, Shayarrn Khatiwada, Jiten Thapa, Marco Schmidt

Small Satellite Conference

COTS sensors speak many protocols; but the satellite bus understands only a few. An FPGA hardware bridge board reroutes heterogeneous sensor protocols (UART, SPI, RS-422, RS-485) to the single communication channel with minimum latency supporting plug-and-play with no bus redesign.

A Proposed Development Process For A Hardware-In-The-Loop Testing System For Cubesat Components, Vahini N. Patel, Victoria Coverstone

Small Satellite Conference

Hardware-in-the-loop testing systems, commonly known as FlatSats, are testbed systems in which spacecraft subsystems, such as the onboard computer (OBC), power system, attitude determination and control system (ADCS), and communications, are laid flat and interconnected as they would be in an actual spacecraft. This arrangement gives easy access to each subsystem, enabling hardware and software testing and troubleshooting without risking fully assembled flight hardware.

FlatSats are widely used throughout the aerospace industry, from government agencies like ESA and NASA to private companies and university research labs, due to their versatility in enabling parallel development. This accelerates timelines and reduces …

Software For The Alpha Cubesat Mission: System Architecture, Development, And Testing Behind Successful Flight Operations, Eric Zhang, Jonathan Ma, Joshua Umansky-Castro, Lauren Greenhill, Duncan Mcdonald, Damian Hackett, Maria Boza, Cameron Goddard

Small Satellite Conference

Alpha CubeSat is a 1U CubeSat designed, built, and operated by a student-led team at Cornell University. Its primary mission is to deploy a free-flying lightsail in low Earth orbit, carrying gram-scale "ChipSat" flight computers as a demonstration of low-cost distributed sensing in space. The spacecraft was built around commercial, off-the-shelf hardware, including a Teensy 3.5 microcontroller as the primary flight computer and a RockBLOCK Iridium modem for communication, and was developed and flown under the constraints that define a student program: a small power budget, a rotating team, limited development time, and an intermittent operations radio link. The CubeSat …

``I Don't.. I Don't Remember The Answer'': A Psycholinguistics Study Of Language Processing Impairment Caused By Traumatic Brain Injury In Film ``The Vow'' (2012), Fathiya Rosyada, Emy Sudarwati, Lee Huan Yik, Putrie Rahayuningtyas

Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya

There is substantial evidence of an association between traumatic brain injury (TBI) and language difficulties, particularly those related to cognitive impairment. Addressing an underexplored narrative perspective, this study examines the interaction between memory and language in the representation of cognitive-communication disorder (CCD) following TBI in the film The Vow (2012). Using a qualitative approach informed by Clinical Discourse Analysis (CDA), the study analyzes selected dialogues to identify post-traumatic cognitive-communication difficulties reflected in language comprehension and production. The findings reveal a dissociation between relatively preserved linguistic competence and impaired communicative performance. In language comprehension, this dissociation is reflected in pragmatic misinterpretation, …

Mean Platelet Volume As A Marker Of Disease Severity In Hospitalized Children With Acute Bronchiolitis., Kedar Tilak, Trisha Sunderajan, Lewis Krata

Manuscripts, Articles, Book Chapters and Other Papers

Bronchiolitis is one of the most common lower respiratory tract infections affecting children less than two years of age and is a leading cause of hospitalization. Mean platelet volume (MPV), a readily available component of the complete blood count, has been investigated as an inflammatory biomarker in various conditions. Our present study evaluated the association between MPV values and the severity of acute bronchiolitis in hospitalized children.    Objective: The aim of this study was to determine the association between MPV, severity of respiratory distress, and need for oxygen support in hospitalized children under two years of age with acute bronchiolitis. …

Beyond Better Conditions: Seaweed Farming And The Number Of Sentient Animals In Aquaculture, Shrilaxmi Patil, Matthew Unerman, Wasseem Emam

Animal Sentience

Oldfield & Bonano (2024) (O&B) document how far  fish welfare research lags behind welfare research in other animals. We share O&B’s feelings-based concept of welfare and agree that aquaculture seeded this field; but research volume has not scaled with animal numbers: Welfare attention per farmed fish or decapod remains negligible. Along the lines of preceding commentaries (Maia 2024, Mather 2024), we treat farmed aquatic animals as individuals rather than tonnage. We then raise a point so far absent from the commentary on O&B so far: reducing the number of sentient animals entering intensive systems. Coastal seaweed farming, which cultivates non-sentient …

Measuring Space Weather Through Nitrogen-Vacancy Diamond Quantum Magnetometry: A Cubesat Mission Exploration, Patrick Bailey, Alberto Diaz, Jacob Boutin, Austin Downey, Wout De Backer

Small Satellite Conference

1. The Challenge

• Solar weather is constantly changing with adverse effects on earth and the space around it
• Solar flares cause communication blackouts
• Coronal mass ejections can damage satellite hardware, and cause geomagnetic induced currents that can damage the power grid
• Difficult to measure these effects in real-time

Mission-Driven System-Level Design Of A 1u-Constrained Reaction Wheel Assembly For Agile Cubesat Missions, Xixi Zhang, Ghadi M. Al-Amer, Teef A. Alharthi, Yaqin Saada, Shouq J. Alabdullah, Fadil M. Younes, Atif Mahmood, Ayman M. Abadallah

Small Satellite Conference

Mission need:

Single-pass multi-strip imaging compresses repeated retargeting and settling into a 3- 4 min imaging window.

Nebulous: Applying Genetic Algorithms To Design Next-Generation Satellites For Drag Resilience, Rick Marcusen, Adrian Bryant, Julie Rolla, Max Foreback, Evan Imata, Emily Dolson, Kyle Helson, Marcin Pilinski, Anselmo C. Pontes, Jonathan Sy, Joey Wagner, Scott Palo

Small Satellite Conference

Very Low Earth Orbit (VLEO) is a region of space between ~150-400 km that is becoming increasingly valuable for operators of large satellite constellations. VLEO's proximity to the Earth enables improved technical performance, such as higher surface image resolution and lower communications latency, as well as less expensive and more frequent launch opportunities. However, one significant disadvantage to operating in VLEO is the increased effects of aerodynamic drag, which can reduce a mission's lifetime and decrease a spacecraft's position accuracy. To address this, we introduce NEBULOUS, a genetic algorithm-based design tool that evolves spacecraft geometries through generations of mutation and …

Progressing From High-Altitude Balloon Validation To Orbit: Establishing Cubesat Capability In Nevada Through Incremental Design, Kylee Brahma, Leandro Araiza, Christian Ługowski

Small Satellite Conference

UNLV ATLAS-1—Analysis of Temperature and Radiation in Low-Earth Orbit for Analog Studies—is a student-led 1U CubeSat mission at the University of Nevada, Las Vegas. The project uses an incremental approach, progressing from mock-satellite prototypes to high-altitude balloon flights and, ultimately, orbital deployment. By increasing system fidelity alongside student experience, UNLV ATLAS-1 aims to create a repeatable pathway for CubeSat development in Nevada and beyond.

Relative Position Determination For Satellite Formation Flying Using Radio-Wave Strength Considering Antenna Deformation, Sho Watanabe, Takaya Inamori, Yosuke Kawabata

Small Satellite Conference

Background:

Increasing use of formation flying in space missions:

• Requires formation establishment and maintenance
• Relative orbit determination is essential

Conventional Methods

• Camera
• Laser
• GNSS

Large size and mass are mostly required

Depends on the orbit and satellite attitude

Using received signal strength can overcome these limitations.

Thermal Analysis Of Small Satellites, Devansh Patel

Small Satellite Conference

Accurate thermal modeling is essential to spacecraft design, ensuring components remain within operational temperatures throughout orbit. This study develops and validates thermal models of increasing complexity to gain practical experience in spacecraft thermal analysis.

The GRIFEX mission is a 3U CubeSat launched in a 634 km circular polar orbit by the Michigan Exploration Laboratory (MXL). The CubeSat observed both 90° and 0° beta angle orbits during its mission, making it optimal for comparing thermal analysis results for small satellites in low Earth orbit.

Design And Development Of A Miniaturized Helmholtz Cage For Cubesat Adcs Testing, Karla Sever, Marko Bosiljevac

Small Satellite Conference

• Magnetic field generation and compensation are essential for laboratory testing of an attitude determination and control system (ADCS) for small satellites. Since commercial magnetic test facilities are often unavailable or impractical for university laboratories, such setups are typically developed in-house. A controlled magnetic environment allows for reliable magnetometer characterization, magnetorquer testing, and evaluation of attitude control algorithms, enabling repeatable ADCS experiments under well-defined conditions.
• At our university, a CubeSat-class ADCS is being developed from the ground up by students, with a focus on hands on hardware development and experimental validation. The current ADCS prototype includes magnetic sensors, custom-developed magnetorquers, and …

Design And Testing Of A Compact Hold-Down And Release System For A Formation Flying Micro Satellite; Seirios, Takahiro Takano, Yoshihisa Shimada, Takahiro Yamazaki, Masaki Ito, Itsuki Fujiwara, Satoshi Ikari, Shinichi Nakasuka

Small Satellite Conference

SEIRIOS(Space Experiment of IR Interferometric Observation Satellites)

• Demonstrates accurate formation flying (FF) technology with three microsatellites (two10 kg-class and one 60 kg-class)

Hold-Down and Release System (HDRS)

1. Retain the Deputy-Sats on the Chief -Sat during the launch.
2. Enable Interferometric observation in the docking configuration with no structural deformation.
3. Enable separation of the Deputy-Sats in orbit.
4. Avoid collision during separation

Launch Load Condition(Tentative)

The response amplification factor within the Chief-Sat was empirically set as below.

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 …

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.

You Are Beloved, Anna Bennett

The Main Thing Devotional

“See what great love the Father has lavished on us, that we should be called children of God! And that is what we are,” 1 John 3:1, NIV.

20260824: Marshall Artists Series, April 14, 2025 - April 26, 2026, Marshall Artists Series

Guides to University Archives

These items include materials from the Artists Series at Marshall University from 2025-2026. Items were received in 2026 and include seven movie sized posters outlining the shows that were done as part of MAS from April 14, 2025 through April 26, 2026. Please download the finding aid for a full list of contents.

Unmanned Aerial Support Program In Portland Police Bureau: A Case Study, Eiryn Renouard

Dissertations and Theses

With the Portland Police Bureau (PPB) adopting drone technology in 2024 as a tactical tool, officers have begun to experience change in the way they approach their roles as they learn to work in conjunction with this new technology. Known as the Unmanned Aerial Support program (UAS), this drone program is embedded into PPB's patrol unit. The recency of the program offers an opportunity to examine how a new program using new technology builds its culture and impacts the perspectives and behaviors of its participating officers. By interviewing officers and conducting field observations of the officers and drones in action, …

Correlative In Situ Nonlinear Optical Characteriztion Of Plasmonic Colloidal Nanoparticle Growth Dynamics, Stena C. Peterson

LSU Doctoral Dissertations

Colloidal noble metal nanoparticles are of extreme interest as nanomaterials and for the wide variety of their possible applications in nanomedicine. The unique linear and nonlinear optical processes associated with these nanomaterials can be studied using a variety of spectroscopic techniques including extinction, second harmonic generation (SHG), and two-photon fluorescence (TPF) spectroscopy. In order to better understand and optimize these nanomaterials for their desired applications, it is important to investigate the growth and photophysical dynamics associated with gold nanoparticles, silver-gold core-shell (Ag-Au CS) nanoparticles, and gold-silver-gold core-shell-shell (Au-Ag-Au CSS) nanoparticles in addition to how their size, surface morphology, composition. and …

A Cubesat-Based Data Collection Architecture For The Catarina Constellation: Complementing Legacy Brazilian Data Collection System With Lora, Vitória Beatriz Bianchin, Carlos Augusto Porto Freitas, João Cláudio Elsen Barcellos, Gabriel Mariano Marcelino, Talita Sauter Possamai, Eduardo Augusto Bezerra

Small Satellite Conference

• The Catarina Constellation is a Brazilian CubeSat initiative created to enhance environmental monitoring and satellite-based environmental data collection across Brazil.
• The project was named after Hurricane Catarina (2004), the first recorded hurricane in the South Atlantic, which exposed the need for improved space-based monitoring of extreme weather events.
• The constellation aims to expand the Brazilian Satellite Data Collection System (SBCD) by evaluating new communication technologies, enabling a gradual modernization of the country’s environmental monitoring infrastructure.