Digital Commons Network^™

Clear Shores: Enhancing Water Quality Monitoring, Benjamin Taylor, Guglielmo Aglietti, Moritz Lehmann

Small Satellite Conference

Mission goal: "Improve monitoring of the quality of water in and around Aotearoa New Zealand for researchers, decision makers and the public at large through innovative space technology"

High-Altitude Balloon-Launched Cubesat Platform For Small Satellite Undergraduate Space Technology Education In Saudi Arabia, Ashraf Farahat, Ayman Abdullah, Abdulmalik Alghanmi, Bassam Aldar, Abduallah Albaqer, Yousef Almodhi

Small Satellite Conference

In this work, we discuss the effort of King Fahd University of Petroleum KFUPM undergraduate students to design a Balloon CubeSat and fly it to an altitude of about 30km. This approach allows enhancing the payload through several launching attempts at a relatively low cost. The KFUPM balloon CubeSat is the first stage in a multi-year program to enable undergraduate students to design and test a CubeSat platform and eventually launch to Earth orbit.

Distributed Spacecraft Mission (Dsm) Plume Design Reference Mission (Drm) Inter-Satellite Link Modeling, Analysis, And Simulation, Yen Wong, Robert Morgenstern, Jose Velazco

Small Satellite Conference

NASA Goddard Space Flight Center (GSFC) Radical Innovation Initiative (R12) plans to focus intently on DSM capability advancements in FY22-24. A DSM mission involves multiple spacecraft, arranged in a constellation, to achieve one or more common goals via the use of inter-satellite links (ISL) between the satellites. Recently, the GSFC Internal Research & Development (IRAD) program established Enceladus as a design reference mission (DRM) for the current DSM effort to foster the conceptual development of communication architecture, requirements, and solutions for future DSM ISL, as well as being able to push other research areas of interest. Enceladus is an icy …

Development And Delivery Of A Custom Versal Board For Space Applications, Thomas Bradshaw, Jeffrey Mccasland, Joshua Donckels, James Meub, John Dickinson

Small Satellite Conference

The Versal can help enable rapid advancement to the next generation of radiation tolerant computing, drastically improving the processing capability of small satellites.

Jaxa-Smash Program: Jaxa's New Co-Creation Program For Small Satellite Missions, Kenshi Sechi, Shinichi Takata, Yuya Kobayashi, Masuo Takahashi

Small Satellite Conference

JAXA-SMASH (JAXA-Small Satellite Rush) Program is a research and development program that encourages universities, private companies and JAXA to collaborate to realize small satellite missions utilizing commercial small launch opportunities, and to diversify transportation services in Japan.

Mission Operations, Systems Engineering, And Ground Stations: How University Students Are Crucial To The Cu-Lasp Smallsats Program, Sierra Flynn

Small Satellite Conference

The Laboratory for Atmosphere and Space Physics (LASP) at the University of Colorado (CU) in Boulder, CO is an internationally recognized facility that specializes in atmospheric, solar, planetary, and space physics research, as well as spacecraft engineering, operations, and data analysis. LASP has contributed to the research, development, and operations of a multitude of missions exploring every planet in the solar system for over 70 years. At LASP, a multi-mission SmallSat Operations Team (SMOPS) composed of 2 professionals and 8 students currently supports 3 SmallSats in flight and numerous missions in development. Additionally, a sub-team of Ground Station Operations (GSOPS) …

A3Sat Emulator Enterprise: To Observe The Earth And Visualize The Future, John Moore, Maxwell Friedman, Sriram Elango, Jin Kang, Christine Maceo

Small Satellite Conference

The A³Sat project allows students to build an active CubeSat Emulator incorporating components of an authentic design engineers use for launch into space. A³Sat V2 has been designed as a "Tier 2 Ready for Space with Modifications" Emulator.

From Lampoldshausen To Orbit: Dlr Spin-Off Greendelta And The Development Status Of Green Propellant Thrusters Based On H2O2 And N2O, Felix Lauck, Lukas Werling, Julian Dobusch, Marc Gritzka, Vincent Stratmann, Florian Merz, Till Hörger

Small Satellite Conference

The German Aerospace Center's Institute of Space Propulsion in Lampoldshausen has more than a decade of experience in green propellant research and green propulsion hardware development. In the frame of internal research projects as well as ESA and third-party projects DLR employees gained a deep and extensive knowledge of propulsion hardware. Based on this knowledge, thrusters and propulsion hardware were developed in-house and the TRL was increased step by step. Currently, the two most promising technologies are: the HyNOx bipropellant technology, based on nitrous oxide and hydrocarbon fuels, as well as the hypergolic HIP_11 technology. The HyNOx bipropellant offers a …

Design To Delivery Of Additively Manufactured Propulsion Systems For The Swarm-Ex Mission, Kevin Tong, Samuel Hart, Mackenzie Glaser, Samuel Wood, Mark Hartigan, E. Glenn Lightsey

Small Satellite Conference

Recent progress in miniaturized spacecraft propulsion technology has allowed for the development of complex, multi-vehicle missions which enable the cost-effective realization of science goals that would previously have been prohibitively expensive. The upcoming NSF-funded Space Weather Atmospheric Reconfigurable Multiscale EXperiment (SWARM-EX) mission leverages these swarm techniques to demonstrate novel autonomous formation flying capabilities while characterizing the spatial and temporal variability of ion-neutral interactions in the Equatorial Ionization Anomaly and Equatorial Thermospheric Anomaly. SWARM-EX will fly a trio of 3U CubeSats in a variety of relative orbits with along-track separations ranging from 3 km to 1300 km.

To achieve the required …

Change Over Time: Mississippi's Civil War Historiography, Timothy B. Smith

Journal of Mississippi History

No abstract provided.

Aquarius: The World's First Water-Based Thruster Enabled 6u Cubesat To Complete Lunar Flyby, Aoma Fujimori, Hokuto Sekine, Yasuho Ataka, Isamu Moriai, Mariko Akiyama, Masaya Murohara, Hiroyuki Koizumi, Ryu Funase

Small Satellite Conference

This paper presents the outcomes of the initial operations and on-orbit performance of AQUARIUS (AQUA ResIstojet propulsion System), a micro-propulsion system. AQUARIUS utilizes water as a propellant and is designed for trajectory control and reaction wheel desaturation of a 6U CubeSat, EQUULEUS (EQUilibriUm Lunar-Earth point 6U Spacecraft). The spacecraft was launched in November 2022 by SLS, following which the initial operations commenced. Both the spacecraft and the propulsion system were confirmed to be in good health during the checkout process. Performance evaluation of the propulsion system confirmed that it met the requirement to execute the first delta-V maneuver scheduled 38 …

Complete Issue - Vol. 83, No. 3 And 4

Journal of Mississippi History

No abstract provided.

The Menace: Fever, Pox, And Quarantine In The Hattiesburg Area, 1888-1918, Andrew R. English

Journal of Mississippi History

No abstract provided.

Lessons Learned During The Implementation Of A Cold Gas Propulsion System For The Sunrise Mission, Ryan Martineau, Tyson Smith, Matt Felt, Cameron Weston, Blake Rusch, Robert Fowler, Emma Brown, Adam Farmer, Tim Neilsen, Craig Thompson, Alex Kirkman, Paul Fluckiger, Shawn Morrison, Dave Wittner, Frank Picha, Jeffrey Weiss, Nathan Daniel, Samuel Wood, Mackenzie Glaser

Small Satellite Conference

The SunRISE mission utilizes a two-phase cold gas propulsion system, which provides several advantages over other cold gas systems but experienced challenges during assembly and testing. Since 2020, Georgia Tech Research Corporation (GTRC), Utah State University Space Dynamics Laboratory (SDL), and the Jet Propulsion Laboratory (FPL) have implemented several improvements to the SunRISE propulsion system.

The SunRISE propulsion system leverages an additively manufactured monolithic structure, commercial off-the-shelf (COTS) valves and transducers, and the benign working fluid R-236fa to provide a suitable propulsion system for the SunRise mission. While the GTRC propulsion system had been developed for other missions, the multi-organizational …

On-Orbit Demonstration Of The Water Resistojet Propulsion System On Commercial 6u-Sat Sphere-1 Eye, Yuichi Nakagawa, Akira Iwakawa, Shogo Kameyama, Takeo Kikuchi, Kazuya Yaginuma, Jun Asakawa, Hiroyuki Koizumi

Small Satellite Conference

SPHERE-1 EYE, a 6U CubeSat developed by Sony Group Corporation, was launched at the beginning of 2023. The satellite included a water resistojet propulsion system, which is designed for orbit raising after the initial checkout. The water resistojet propulsion system consists of a tank, a vaporizer, nozzles, a control board, and a power processing unit. The form factor of the propulsion system is 1.25 U, the wet mass is 1.4 kg, and the achievable total impulse of the system is 170 Ns or higher. A unique design of the water propulsion system is a vaporization chamber generating steam at room …

Extended Life Qualification Of The Magnetically Shielded Miniature (Masmi) Hall Thruster, Vernon H. Chaplin, Jacob B. Simmonds, Matthew P. Byrne, Dan M. Goebel, Alejandro Lopez Ortega, Robert B. Lobbia, Ioannis G. Mikellides, Richard R. Hofer, Brian X. Zhu, John M. Ratliff, Ryan W. Conversano

Small Satellite Conference

We present an update on the life qualification of the Magnetically Shielded Miniature (MaSMi) Hall thruster (also known as the ASTRAEUS Thruster Element), which was developed at the Jet Propulsion Laboratory and was recently licensed to ExoTerra Resource for flight production (renamed Halo12). In 2020-2021, the thruster successfully completed a 7205-hour wear test at operating powers from 200-1350 W, processing over 100 kg of xenon propellant and producing 1.55 MN-s total impulse with no measurable degradation in performance. The wear test is being extended to further demonstrate the service life capability of the thruster. In separate tests, prot-flight MaSMi hollow …

Effect Of Expansion And Tumor Challenge On Chemokine Receptor Expression In Cord Blood-Derived Car-Nk Cells, Sam Rosemore, Pinghua Liu, Pinaki Banerjee, Rafet Basar, Sunil Acharya, Hind Rafei, Katy Rezvani

Summer Experience 2023

No abstract provided.

Nasa Spacecube Next-Generation Artificial-Intelligence Computing For Stp-H9-Scenic On Iss, Alessandro Geist, Gary Crum, Cody Brewer, Dennis Afanasev, Sebastian Sabogal, David Wilson, Justin Goodwill, James Marshall, Noah Perryman, Nick Franconi, Timothy Chase Jr., Travis Wise, Sarah Flanagan, Michael Monaghan, Jeff Hosler, Leyland Young, Judy Kuntz, Lindsey Seo, Joseph Schreck, Tracy Price, Munther Hassouneh, Steven Kenyon, Samuel Price, Christopher Wilson, Nicole Thai, Madison Hobbs, Andrew Keene, Sammy Lin, Michael Nemerouf, Evan T. Kain, Francisco O. Viramontes, Tyler M. Lovelly

Small Satellite Conference

Recently, Artificial Intelligence (AI) and Machine Learning (ML) capabilities have seen an exponential increase in interest from academia and industry that can be a disruptive, transformative development for future missions. Specifically, AI/ML concepts for edge computing can be integrated into future missions for autonomous operation, constellation missions, and onboard data analysis. However, using commercial AI software frameworks onboard spacecraft is challenging because traditional radiation-hardened processors and common spacecraft processors cannot provide the necessary onboard processing capability to effectively deploy complex AI models. Advantageously, embedded AI microchips being developed for the mobile market demonstrate remarkable capability and follow similar size, weight, …

Applications Of Systems Engineering Methodologies To An Undergraduate Student Volunteer-Led Cubesat Constellation, Joanna Cai, Ethan Ledig, Joshua Lazaruk

Small Satellite Conference

The Northern Space Program for Innovative Research and Integrated Training (Northern SPIRIT) satellite consortium launched in March 2023 and consists of three CubeSats designed, assembled, and operated by AlbertaSat, a University of Alberta student group:

• Ex-Alta 2: a 3U CubeSat containing an open-source, multispectral imager designed for wildfire prediction, detection, and prevention.
• YukonSat and AuroraSat: 2U CubeSats developed in collaboration with Yukon University and the Aurora Research Institute, each with an educational outreach payload that can receive, display, and photograph community submitted artwork and messages.
• All three satellites have digital fluxgate magnetometer payloads, and nearly identical buses composed …

Cubesat System Reference Model (Csrm) As An Omg Specification, David Kaslow, Daniel Brookshier, Alejandro Levi, Steven A. Maclaird

Small Satellite Conference

This paper describes the transformation of the CubeSat Reference Model™ (CSRM™) into an Object Management Group® (OMG®) specification, as effected by the International Committee on System Engineering (INCOSE) Space System Working Group (SSWG) from 2016 to 2022.

The CSRM is a logical model of engineering artifacts used by a CubeSat mission team to build its mission-specific logical and physical models according to its individual engineering methodology. It is based on Model-Based System Engineering (MBSE) principles, is OMG System Modeling Language (SysML) compliant, is hosted on a graphical modeling tool, and is intended to foster completeness and economies of scale associated …

Maveric: Exploring Space Visualization Technology Through Academic Flight Programs, C. Garrido, S. Lin, J. Di, J. Bergstrom, B. Rios, B. Byrne, S. Clements, A. Dhabekar, B. Dadhich, D. Barnhart

Small Satellite Conference

Magnetic Vector and Remote Imaging Communication satellite (MAVERIC) is a science and technology CubeSate designed and built by students at the University of Southern California (USC) and Space Engineering Research Center (SERC). MAVERIC is a student-led and built CubeSat under the Department of Astronautical Project Class for Microsatellites, with a mission to test out science and technology.

Afrl Recurve Mission Success, Loss, Diagnosis, And Lessons Learned, Tyler De Caussin, Kate Yoshino, Lee Jasper, Franklin Hinckley, Brandon Shirley

Small Satellite Conference

Small satellites are making leaps in capability and are more often successful than even 5 years ago. However, there are many practices and approaches that are fairly new and deserve consideration for their efficacy. AFRL’s Small Satellite Portfolio (SSP) has been researching both first-of-their-kind technology demonstrations and the practices/approaches for their implementation. This paper discusses those practices and their results on the recent flight mission Recurve.

The Portfolio, somewhat uniquely, has the ability to execute flight demonstrations starting from concept and ending in operations, literally under one roof. Recurve was comprised of in-house developed and vendor supplied subsystems; in-house flight …

An Ultra-Compact Ion Mass Spectrometer For Observations Of Planetary Ionospheres, Carlos A. Maldonado, Gabriel Wilson, Justin Mcglown, Heidi Morning, Daniel Arnold, Thomas K. Kim, Tatiana N. Espinoza, Micalah Miller, Anthony J. Rogers, Daniel Reisenfeld, Michael Holloway

Small Satellite Conference

The Compact Ion Mass Spectrometer (CIMS) is an ultra-low resource ion mass spectrometer being designed to make observations of low-energy space plasmas such as that in planetary ionospheres. The CIMS utilizes a laminated collimator to define the field-of-view, a laminated electrostatic analyzer to selectively filter ions based on energy-per-charge (E/qM/q), and a microchannel plate with a position sensitive cross-delay anode assembly (XDL/MCP) to detect the location of the ions on the detector plane. This ion mass spectrometer is a simple, compact, and robust instrument ideal for obtaining low-energy (0.1 eV to 1000 eV) ion composition measurements of terrestrial …

Functional Simulation Of The Uses Of The Onboard Inter-Satellite Network In A Swarm, Pierre Boan, Cécile Dechoz, Julien Galizzi, Patrick Gélard, Yoan Grégoire, Hervé Guillon, Pierre-Baptiste Lambert, Bernard Pontet, Patrice Raveneau, Marie Sauvaud, Irene Valenzuela-Molina, Gavin Walmsley

Small Satellite Conference

There are several network simulators (some on the shelves) that are very useful and helpful for network engineering. Nevertheless, none is efficient enough for simulating an onboard network spread among spacecrafts that are moving in space according to Kepler laws.

Therefore, we tried to fill this gap by building our own tool based on the CNES expertise in space simulator benches. Our bench simulates the environment and the dynamics of each spacecraft, provides a model of the physical layer of the network layer (i.e. Radio Frequency transmission between moving vehicles) and offers an interface to run actual Flight Software. Embedding …

Independent Promotion Of Young Talents In Satellite Development On The Full-Scale Satellite Mission Source, Daniel Galla, Sabine Klinkner, Michael Lengowski, Robin Schweigert, Klemens Boltenhagen, Natascha Bonidis, Bastian Krämer, Jonas Meth

Small Satellite Conference

The SOURCE mission is the first student satellite developed at the University of Stuttgart. This unique opportunity for undergraduate and graduate students is made possible by the cooperation between the Institute of Space Systems (IRS) and the Small Satellite Student Society (KSat e.V.)

Design Of A Low Micro Vibration High Precision Cubesat Reaction Wheel, Cedric Cuypers, Tjorven Delabie, Jelle Lanting, Win De Munter, Rhimas Van De Putte, Joren Malfroy, Lubna Hamid

Small Satellite Conference

Rolling element bearings are known to generate higher order harmonics. These harmonics can reach up to the 10th or higher engine order [1]. When wheels are used in a wide speed range, these higher order harmonics can pass and excite rotor eigenfrequencies and rotor modes, severely increasing the exported μ-vibrations at these frequencies. The amplification of these frequencies will then be governed by the quality factor (Q-factor) of the rotor. Single piece rotors have several advantages such as affordable tight tolerances, uniform mass and elimination of assembly errors, but such monolithic metallic structure feature high Q-factors. Material choice is …

Small Satellite Payload Calibration, Deron Scott, Cole Miller, Eli Salay, Shane Canfield, Scott Hansen, Matt Berghout, Jan Kunzler, Duane Miles

Small Satellite Conference

This project focused on developing an efficient and cost-effective method for calibrating optical payloads that streamlines setup, measurement, and analysis time while staying within a SmallSat budget. To develop and test the concept, the team identified key calibration parameters and performed a demonstration on a surrogate payload using spatial, spectral, and radiometric calibration methods. Calibration results were derived from the demonstration and are detailed below.

A Ray-Tracing Algorithm For Computing Self-Shadowing Of Complex Spacecraft Geometries, Matt Pierce, Jack Huun

Small Satellite Conference

As spacecraft geometries become more complex, particularly for In-Space Servicing, Assembly, and Manufacturing (ISAM) missions, higher fidelity models of shadowing are often necessary for more accurate planning and performance modeling in the mission operations center. For geometries where a vehicle may shadow a large portion of itself, these models must consider self-shadowing events, in addition to planetary eclipses, to provide an accurate estimate of forces and torques from Solar Radiation Pressure (SRP) and more realistic power generation estimates. SRP plays a pivotal role in determining spacecraft fuel usage and momentum accumulation. Many existing models simplify spacecraft geometries to either a …

Parametric Assessment To Fully Deploy Autonomous Small Satellite Constellations For Cislunar Space, Mohammed Irfan Rashed, Hyochoong Bang, Nate Mccoun

Small Satellite Conference

In this new age of cislunar competition for attaining the optimal solutions for Earth and the Moon, NewSpace stakeholders have leaned toward sustainable operations. Both industry and academia play major roles in this era of challenging space survival with the growing number of missions and debris. This paper focuses on scaling and optimizing small satellite ( < 500 kilograms) constellations and utilizing them in cislunar space by evaluating earth observation missions’ constellations for support in Artemis-2-like missions for Lunar orbits. From an astrodynamics point of view, a significant amount of scaling of constellations is done by identifying the parameters affecting the performance, which are mission-specific to their environments with fewer satellites. A detailed parametric analysis of medium-sized constellations, operable in cislunar space, for critical applications like communication (Lunar region) and disaster management (Earth region) is presented. Literature, related dynamics, discussions of the possible futuristic scenarios, discussions, and conclusions are explored.

Imaging Spectrometer Implementation On A Small Satellite Platform For Aquatic Ecosystems Science, Corrie Smeaton, Ronald Lockwood, Michael Chrisp, Charles Bachmann, Laura Kennedy, Steve Gillmer, Linda Fuhrman, Derrick Brouhard, Jade Wang

Small Satellite Conference

The implementation of Imaging spectrometers with state-of-the-art performance on small satellites is challenging due to the size, weight, and power (SWaP) limitations. We have recently developed a compact form, the Chrisp Compact VNIR/SWIR Imaging Spectrometer (CCVIS), that facilitates their usage without sacrificing performance. The CCVIS enables a modular implementation that, combined with a freeform telescope, produces a wide field of view with high signal to noise ratio (SNR) performance. The targeted scientific application is the study of aquatic ecosystems. The imaging spectrometer is designed to address carbon sequestration in coastal margins and wetlands, kelp and seagrass studies, coral reefs, harmful …