Digital Commons Network^™

Spatiotemporal Assessment Of Coastal Urban Heat In Buenos Aires Using Satellite Landsat Lst, Ronny Schroeder, Kevin A. Adkins, Nickolas D. Machiarella, Noah Morales, Lleyton Naar

ISARRA 2026

Coastal urban environments exhibit complex surface temperature patterns driven by interactions among water, vegetation, and built infrastructure. This study investigates land surface temperature (LST) variability along a coastal-to-urban transect in Parque de los Niños, Buenos Aires, by integrating multi-year satellite Landsat LST with high-resolution thermal data collected from an uncrewed aircraft system (UAS). Landsat provides the temporal depth necessary to assess seasonal and interannual variability in surface temperature, including responses to extreme summer conditions. However, their spatial resolution limits the ability to resolve fine-scale thermal gradients near shoreline boundaries and within heterogeneous urban landscapes. UAS thermal observations address this limitation …

Self Efficacy And Instructional Support Predict Cyber Deception Acceptance In Ics And Ot Cybersecurity, Daniel Ward

Journal of Cybersecurity Education, Research and Practice

Cyber deception can produce high-confidence evidence of unauthorized activity in industrial control systems (ICS) and operational technology (OT), but practitioners must consider the technology useful, safe, understandable, and supported before they will use it. This study reports a secondary quantitative analysis of a deidentified survey of United States-based ICS and OT professionals to determine whether psychological and instructional factors predict adoption readiness and effective utilization beyond education, experience, and sector. Hierarchical ordinary least squares regression with HC3 robust standard errors was conducted on 262 complete cases. The demographics-only model was not significant and explained 2.8 percent of outcome variance. Adding …

The Gleneagles Communique Climate Change, Energy And Sustainable Development

Law and Business Review of the Americas

No abstract provided.

High Data Rate Scalable N X 100g Transceiver For Cube/Small Sats For Cis-Lunar, Geo, And Data Center Applications, Christopher Krush, Alexandra Castle-Jones, Victoria Kennedy, Keith G. Petrillo, Mark Storm

Small Satellite Conference

Optical data transport in the cis-lunar regime is an enabling capability for sustained lunar exploration, space-based astronomy, and distributed sensing architectures. This paper presents the design, analysis, and experimental validation of a 100 Gb/s-class coherent optical communication transceiver that extends beyond LEO to GEO and cis-lunar applications. Target missions include lunar constellations, relays at Earth–Moon L1, and direct-to-Earth links, with relevance to NASA Artemis campaigns, enabling a future lunar infrastructure, and high-throughput science missions. This technology also supports future space data centers with the potential for Terabit optical links using WDM.

System-level performance requirements are derived from a parametric link …

Multi Network Optical And Rf Communications For The Esa Ops-Sat Oriole Mission: Design Challenges And Operational Readiness, Mari Allik, Silver Lodi, Lauri Kimmel

Small Satellite Conference

The increasing availability of Ground Station as a Service (GSaaS) networks and recent advances in optical communications are creating new opportunities for small satellite missions. While both technologies offer significant operational benefits, combining them within a single mission architecture introduces challenges that extend beyond the communication subsystem itself. Differences in provider interfaces, scheduling workflows, operational procedures, regulatory constraints, and communication availability must be addressed before such architectures can be used routinely.

The ESA OPS-SAT ORIOLE (Optical Relay and Infrared Optics for LEO Experiments) mission explores a communication architecture combining conventional RF communication systems with optical communication capabilities within a unified …

Opengrcrmf: A Vendor-Neutral Framework For Teaching And Modeling Rmf Automation, Continuous Authorization, And Zero Trust Governance, Anand Janjal

Journal of Cybersecurity Education, Research and Practice

Abstract—Federal and regulated organizations continue to rely on document-centric Authorization to Operate (ATO) processes even as the NIST Risk Management Framework (RMF), continuous monitoring guidance, Zero Trust Architecture (ZTA), and continuous authorization initiatives require more continuous, evidence-driven risk management [1]-[3], [13], [15]. Manual System Security Plan (SSP) updates, spreadsheet-based Plan of Action and Milestones (POA&M) tracking, and disconnected assessment evidence create governance latency: the delay between operational security events and authorization-ready governance response. This paper presents OpenGRCRMF, a proposed open, vendor-neutral reference framework that models RMF lifecycle activities as workflow states, treats authorization artifacts as structured governance objects, and …

Energy-Aware Dynamic Tasking For Earth Observing Satellites With Deep Reinforcement Learning, Nicholas Nordlund, Tim Upthegrove, Leandros Tassiulas

Small Satellite Conference

Dynamic tasking for agile Earth-observing satellites (AEOS) adapts preplanned schedules using onboard lookahead sensors to detect cloud cover that obscures targets. Existing approaches decompose tasking into sequential lookahead, maneuver, and capture stages, limiting their ability to manage tradeoffs over long time horizons. Instead, we formulate dynamic tasking as a constrained partially observable Markov decision process (CPOMDP) and introduce Cloud-Aware Dynamic Earth-observation Tasking (CADET), a deep reinforcement learning (DRL) framework that jointly selects maneuvering and sensing actions under resource constraints. We derive a closed-form model for the probability that a target is visible given a spatially aggregated lookahead observation, …

Enabling Earth Independent Navigation, Guidance And Control With The Autongc Flight Software Framework, Michael Romeo, Sun Hur-Diaz, Behnam Azimi, Sean Semper, Robert Pritchett, James Marshall, Liam Greenlee, Joseph Patton, Steven Slegel, Carl De Vries, Benjamin Leser, Andrew Liounis

Small Satellite Conference

autoNGC is a framework for enabling onboard autonomous Navigation, Guidance and Control. Encompassing flight software, ground system software, reference hardware platforms, and simulation/analysis tools, autoNGC is designed to be an end-to-end solution to enabling onboard navigation, guidance and control with minimal ground operator supervision.

Implemented as a suite of apps for NASA’s core Flight System (cFS), autoNGC is designed with a modular architecture, allowing it to be customized to meet the needs of nearly any mission. This modular architecture enables a high-degree of reusability, allowing autoNGC to be rapidly implemented on new missions.

autoNGC is built on Goddard-developed software products, …

From Estimation To Certainty: Enhancing Smallsat Constellation Replenishment Planning With Physics-Based Solar Forecasting, Scott W. Mcintosh, Katherine Monson, Carolyn Belle, Chris Habib, Brianna Aubin

Small Satellite Conference

Poster Presented at the 2026 Small Satellite Conference

First Generation Of Project A.S.P.I.R.E. – A 1u Cubesat Mission For Technology Demonstration And Student Involvement In New Zealand, Shuanghui Zhao, Shunxing Shi, Kristen Lian, Rose Peens-Hough, Arami Peens-Hough, Changrui Wang, Joowon Hwang, Jerry Sun, Edward Sun

Small Satellite Conference

MOTIVATION

A feasibility study conducted at an Auckland secondary school in December 2024 found strong interest in satellite-related learning. Following an outreach presentation, 63 students (Majority aged 15 - 18) completed a questionnaire, with an average interest rating of 4.86/5. The most popular subjects were Orbital Physics, Mathematics, Mechanical Engineering, and Electrical Engineering (fig. 1).

Hitechsat-1: A Rapidly Integrable 3u Platform For University Cubesat Missions, Seho Kim, Miguel Nunes, Mohammed Irfan Rashed, Lance Yoneshige, Gabriel Guerrero, Scott Ginoza, Piper Kline, Luke Flynn

Small Satellite Conference

HITechSat (HTS) is a student-led CubeSat program at the Hawaiʻi Space Flight Laboratory, University of Hawaiʻi at Mānoa. HTS-1 is the first mission in the series: a 3U CubeSat deploying from the International Space Station (ISS) in mid 2027.

Investigation Of A Demonstration Mission For Three-Dimensional Remote Sensing Using “Structured Radio Waves” With Orbital Angular Momentum, Hisatoshi Kimura, Tsukasa Funane, Yosuke Tanabe, Miki Yonehara, Makoto Ito, Keigo Nakamura, Yasuyuki Miyazaki, Satoshi Ikari, Shinichi Nakasuka, Koichi Watanabe

Small Satellite Conference

Background

• As a new radar technology for remote sensing, three-dimensional observation methods using electromagnetic waves with spatial phase distributions are being studied to obtain azimuth-angle information in addition to conventional radar measurements^[1].
• We are considering the use of “structured radio waves”, which are formed by superposing two radio waves carrying orbital angular momentum (OAM), as radio waves with spatial phase distributions^[2,3].

Purpose

• Evaluate the effects of satellite position and attitude errors on azimuth-angle estimation and clarify the requirements for a demonstration mission. 
• Assess the feasibility and provide recommendations.

Layer 3 Switching, Todd R. Zatorski

Small Satellite Conference

Poster presented at the 2026 Small Satellite Conference

Comparison Between Low-Powered Gridded Ion Thruster And Hall Effect Thruster Operation For Small Satellite Applications, William Brabston, Kuei-Ru Chien, Michael Jaroonwit, Kevin Berg

Small Satellite Conference

In recent years, the small satellite space economy has experienced unprecedented growth with the emergence of low-cost dedicated and rideshare launch services. The resulting proliferation of small satellites creates a high demand for low cost, efficient electric propulsion systems to perform orbital maneuvers. Hall effect thrusters (HET) and gridded ion thrusters (GIT) are the two primary electric propulsion platforms for small sat applications, and they offer distinct advantages and disadvantages. Stellant, formerly Hughes, Boeing, and L3 Harris, is developing a lowpower GIT to meet these mission needs.

HETs produce thrust primarily through a highly coupled ionization and acceleration process, whereas …

Launch Vehicle And Ground Infrastructure Development For Zero Launch Systems, Masahiro Kinoshita

Small Satellite Conference

ZERO is a two-stage, orbital-class launch vehicle designed to provide flexible, affordable, and localized space access.

Microsat For Refueling Mission Demonstrator In Vleo, Gyusun Kim

Small Satellite Conference

Recently, active research and technological development have been conducted on various mission application in VLEO(Very Low Earth Orbit) using MicroSat. However, the limited payload accommodation capability of MicroSat poses significant challenges for high optical resolution commercial or national-level practical missions. In contrast, satellites of 2,000 kg in size have performed well in low-Earth orbit for the very high optical resolution missions required so far (e.g., 30 cm-level resolution optical satellites) in 450 km ~ 600 km orbit altitude, but in order to meet the continuously increasing resolution requirements in the future optical imagery market (e.g., 15 cm-level resolution), the optical …

Mission Orientated Flight Software Development: Cubestep, Tirth Thakkar, Howard Lee, Viren Kumar, Maranda Laws, Shridhi Seth, Marco Maggia, Navid Nakhjiri

Small Satellite Conference

Small satellite teams often develop flight software and mission operations separately, leading to software behaviors that drift out of sync with ground procedures. To fix this, we present a co-design approach that directly links mission goals and operational procedures to the onboard flight software architecture. Demonstrated on the CubeSTEP-Cerberus mission using NASA’s F′ framework and FreeRTOS, our system maps mission intent into five constrained software states (Initialization, Safe, Idle, Experiment, and Transmit) guarded by automated health checks. This co-design strategy ensures the spacecraft acts autonomously to preserve its goals while strictly maintaining operator control over critical decisions.

Multi-Paradigm Contact Scheduling — Combining Automation And Flexibility In Gsaas Operations, Jake Urbanek, Giovanni Zanotti, Stefan Vlad Tudor, Giovanni Pandolfi Bortoletto

Small Satellite Conference

BACKGROUND

Ground segment operations must keep pace with increasingly demanding mission concepts of operation. For a GroundSegment-as-a-Service (GSaaS) provider, this means scheduling ground contacts against a diverse, often conflicting set of customer requirements, historically requiring bespoke scheduling logic. Leaf Line's baseline addresses this with two mechanisms: an automated Scheduler that computes guaranteed network-wide allocations 4 days ahead, and on-demand booking of unallocated capacity, first-come-first-served.

PROBLEM

Together, the baseline delivers strong service levels and network utilization, but two gaps emerged. The 4-day rolling horizon limits visibility into exact pass allocation beyond that window. And users needing specific pass times may find …

Feasibility Study Of A 3d-Printed Thermally Insulated Battery Compartment For Cubesats, Michal Kolodynski, Konrad Kij, Michal Radawiec

Small Satellite Conference

Poster presented at the 2026 Small Satellite Conference

Oxford Space Systems Deployable Wrapped Rib Antenna (Wra): Initial On-Orbit Results, Peter Ashworth, Samuel Puche, Yuki Tsutsui, Duncan Shepherd, Amool Raina, Chris Bee, Vincent Fraux, Alex Da Silva Curiel, Danilo De Almedia, Liam North, Andrew Haslehurst, Darren Jones

Small Satellite Conference

Oxford Space Systems (OSS) has achieved significant advancements in space deployable antennas, enabling small-satellite constellations through their low mass, low launch volume and high RF performance. Launched in January 2026 on a Falcon 9 rocket, OSS have collaborated with SSTL on the CarbSAR mission in order to successfully demonstrate and validate the technology of the innovative deployable Wrapped Rib Antenna (WRA) in-orbit & its use in smallsat SAR.

The CarbSAR mission has been jointly funded by Oxford Space Systems, SSTL, Airbus Defence and Space, UKDI-DASA, DSTL and the National Security Strategic Investment Fund (NSSIF), within a long-term programme that also …

A Hybrid Architecture For Scalable High-Frequency Inflatable Reflectors For Small Satellites, Aman Chandra, Hina Suzuki, Shashank Verma, Zac Chen, Dustin Blanchard, Christopher Walker

Small Satellite Conference

Space-based telecommunications and remote sensing increasingly demand large-aperture antennas capable of operating at high frequencies, specifically Ka-band and above. While inflatable membrane structures offer the low mass and compact stowage necessary to deploy large reflectors in excess of two meters from small satellite platforms, their adoption has been hindered by the difficulty of maintaining precise surface geometry. To establish a viable pathway for these high-frequency applications, the University of Arizona and Freefall Aerospace have developed a hybrid tensioning and deployment mechanism, validated on a one-meter lenticular reflector. This system decouples boundary tension from internal pressure, using a novel adaptive pre-tensioning …

Planet's Next Generation Evolution Of The High Speed Radio: 10 Gbps Smallsat Radio, David Nemeth, Kiruthika Devaraj, Varun Sharma, Timothy Kordas, Gil Michael, Stefan Turkowski, Abhra Dasgupta

Small Satellite Conference

Planet is a vertically integrated aerospace and data analytics company that operates the world’s largest commercial fleet of remote sensing satellites. Our mission is to image the whole world every day, and make change visible, accessible, and actionable. We have launched over 600 satellites and built up an automated mission control and ground station infrastructure to monitor and control the satellites, and download the imagery data. Planet’s agile aerospace philosophy of rapid prototyping, iteration, and adaptation of the latest commercial-off-the-shelf (COTS) technology has allowed for continuous improvements in data throughputs on our High Speed Downlink radio. Planet’s HSD2 achieves greater …

Modular, Scalable Electroadhesive Technology For Rapid Response Satellite Servicing And De-Orbit, Kalia Crowder, Victor Agüero

Small Satellite Conference

Building on previous surface attachment testing and a study of the Cambrian Works Space Payload for Inertial Despin Efficient Effects (SPIDEE) architecture carried out under AFRL support, this work presents a modular, scalable electroadhesive attachment architecture enabling rapid-response satellite servicing and de-orbit missions. Prior test and analysis campaigns provided quantified performance validation across the small satellite size range, from 3U CubeSats to ESPA-class platforms, demonstrating the scalability required for diverse time-critical servicing scenarios.

Testing validated performance under representative on-orbit conditions and dynamic scenarios. Attachment force measurements across spacecraft materials representing aluminum bus structures, composite panels, multi-layer insulation, and solar cells …

A Survey Of The State Of The Art In Multi-Spacecraft, Multi-Agent Swarms, Caleb Adams, Trey Smith, Aaron Woodard, Ellemieke Van Kints, Brian Kempa, Jeremy Frank

Small Satellite Conference

The Next-Generation Multi-Agent Swarm (NGS) Study conducted by NASA’s Ames Research Center for NASA’s Space Technology Mission Directorate (STMD) has developed a comprehensive understanding of emerging multi-agent swarm capabilities for applications in cislunar and lunar space. This paper addresses specific shortfalls identified by STMD, including intelligent multi-agent constellations, autonomy, edge computation, position, navigation, and timing for small spacecraft, and small spacecraft propulsion. This paper surveys the current state of the art in technology areas relevant for the next-generation multi-agent swarm design. Our primary focus is on surveying relevant deployed space systems, supplemented with selective analysis of relevant proposed missions and …

Mollie Mae Walker Nelson

African American Funeral Programs

No abstract provided.

Design, Qualification, And Implementation Of Modular Spacecraft Radio Testing Enclosures For Small Satellite Missions, Dexter Stewart

Small Satellite Conference

As small satellite missions evolve, spacecraft platforms increasingly integrate radio-frequency (RF) antennas to support telemetry, command, and inter-satellite communication links that must be verified following full system integration. Recent changes in launch site safety policy, most notably SpaceX’s ban on over-the-air (OTA) testing, have created a critical gap in the ability to qualify spacecraft communication systems during testing at the launch site. This paper presents the design, qualification, and implementation of modular RF containment enclosures, known as ’antenna hats’, developed to enable safe, non-OTA testing of fully integrated small satellites. The antenna hats are self-contained enclosures that interface directly with …

Distribution Of Urinary Calculi And Its Association With Clinical And Laboratory Findings In Dogs And Cats With Stone Analysis At Chulalongkorn Animal Teaching Hospital, Thailand (2020-2024), Tanattha Ladabornvidhaya, Natkrita Baikloy, Theaparak Thipjaroen, Parapond Kongrakchang, Warisara Kaechaiya, Sumonwan Chamsuwan, Monkon Trisiriroj, Chollada Buranakarl

The Thai Journal of Veterinary Medicine

Urinary calculi are commonly encountered in veterinary practice; however, information regarding their distribution of stone that underwent analysis and associated clinical findings remains limited. This study investigated the distribution of urolithiasis and the associations between stone types and clinical and laboratory findings in dogs and cats presented to the Chulalongkorn Small Animal Teaching Hospital between 2020 and 2024. The three most common stone types in both species were calcium oxalate (CaOx), struvite, and urate, with relatively stable trends over the 5-year period. Small-breed dogs had a higher risk of developing CaOx urolithiasis than medium-breed dogs (OR = 10.4, 95% CI …

Development, Analysis, And Qualification Of A Hinge And Hdrm Assembly For Small Satellite Deployable Probes, Josh Taylor

Small Satellite Conference

Small satellites commonly utilize deployable systems to expand their space environment sensing and power generation capabilities. Sensing the space environment is required for certain missions, as it provides information about space weather events such as scintillation and solar flares. To accurately measure the space environment, the probes must be placed away from the spacecraft while in orbit. This paper presents the development, analysis, and qualification of a hinge and Hold-Down and Release Mechanism (HDRM) assembly for deployable space weather probes. These two mechanisms were developed as an assembly to be lightweight, compact, and reliable for deploying space weather probes. The …

Development Of A Low-Cost Uas Air Sampler For Multi-Point Aerosol Collection, Avinash Muthu Krishnan, Kevin A. Adkins, Marc D. Compere, David Zink, Emel Sen-Kilic, Justin Fratto, Kayla D. Taylor

ISARRA 2026

This work describes the development of a low-cost uncrewed aircraft system (UAS)-mounted air sampler for collecting multiple discrete aerosol samples during a single flight. The system uses a liquid impinger approach in which ambient air is drawn through a collection liquid to capture soluble aerosol material. Multiple sterile collection tubes and a solenoid-controlled flow path allow the sampler to collect separate samples at different locations without landing between collections.

A key design issue in a multi-sample system is contamination between samples. To address this, the payload includes a purge step and a flow layout designed to reduce carryover in shared …

The Citizens Bank Of Jacksonville, From Eartha M. M. White To Furchgotts Co.

Eartha M. M. White Textual Material

Document: Cancelled check - The Citizens Bank of Jacksonville. Pay to the order of Furchgotts Co., twelve dollars. Handwritten note on front: Cash. Date: June 18, 1929