What’s Next after Industry Disruption by CubeSats? – Industry Disruption by Open Source

A decade ago, CubeSats featured almost exclusively in the academic domain only. The same can be said today for Open Source satellites. In the same way that CubeSats and the associated development mindset started in the academic community and are now embraced by commercial, civil and defence communities, the goal of the Open Source Satellite Programme is to initiate a similar outcome for open source satellite mission architectures by developing a design that is freely available for all to use. KISPE’s goal is to build a community of open-source contributors, collaborators and beneficiaries, including those from CubeSat and SmallSat teams who are at the forefront of adopting and championing non-traditional approaches to delivering space missions. A key characteristic of open-source projects is stakeholder engagement: to collaborate, iterate and improve elements of the architecture and design - and ultimately, to leverage and benefit from the design outputs. KISPE’s Open Source Satellite Programme is developing a robust, flexible satellite platform which addresses future market, mission and programmatic demands, leverages emerging technologies and is scalable for Nanosat to Microsatellite systems, enabling teams to utilise the platform as a low-cost “commodity” or infrastructure item on which to develop their specific mission

Results from Testing Low-Cost, High-Performance Terrestrial Processors for Use in Low-Cost High-Performance Space Missions

There has been a significant and exciting increase in the use of microsatellites and cubesats in the past decade. However, it has proved difficult to scale up current cubesat avionics systems to enable larger, longer, more complex missions, and challenging to scale down traditional microsatellites to an affordable price point. The need exists for a system that provides the capability of a microsatellite at a cubesat cost; KISPE Space (“KISPE”) is developing the Next Generation Microsatellite Platform (“NGMP”) to address this need and is releasing the design as an open source resource via the Open Source Satellite Programme (“OSSAT”) A key enabler of developing a robust Next Generation Microsatellite Platform is the identification of a suitable low-cost microprocessor that can be used to form the foundation of an affordable, robust, flexible, performant and autonomous satellite platform avionics system. Space-qualified, long-lifetime, radiation-tolerant (or hardened) processors do exist, however, these technologies are very expensive and tend to deliver poor mission performance compared to the latest terrestrial Commercial-Off-The-Shelf (COTS) components and are not compatible with the limited resources available from cubesats and smallsats. We performed a test campaign to identify one or more commercially available microprocessors that leverage the latest innovations in microprocessor technology and which meet a set of system criteria that make them suitable for use as a microsatellite platform processor for a wide range of missions; from single modest spacecraft, through to proliferated architectures requiring autonomous operations. We are sharing these test results freely with the space community to advance small satellite capabilities and to stimulate the development of the next wave of cost-effective missions, applications and services. Three COTS processors (SAMV71, STM32H7 and SAMA5D3) were downselected for Total Ionising Dose (electron) radiation testing to characterize their performance in a representative space radiation environment, in partnership with the University of Surrey and with the input of OSSA T collaborators. All three processors were deemed to be candidates for further evaluation and derisking: The devices began to fail at 60kRads, 47kRads and in excess of 120kRads respectively

Panel Discussion

An interactive discussion forum on the technology needs of the small satellite sector in the coming decade, with specific emphasis on both bus and payload related technologies that are enabling across a broad mission spectrum. Panelists will emphasize game-changing technologies that provide a quantum improvement in the performance vs. cost trade-off, especially those that may be achievable in the near term (years). Panel Members: Mr. Pete Klupar, Director of Engineering, NASA Ames Research Center Dr. Peter Wegner, Director, Operationally Responsive Space Office Dr. John Paffett, Chief Executive Officer, Surrey Satellite Technology Ltd. - U.S

The GIOVE-A Small Navigation Mission

The GIOVE-A mission demonstrates that small satellites are the ideal tool for rapid response missions. The 600kg spacecraft was launched into Medium Earth Orbit in late December 2005, carrying a navigation payload, technology payloads, and a space environment analysis package. Despite significant challenges in the space environment, and tight mission requirements, it was possible to use small satellite engineering techniques to develop and launch this demanding mission in under 30 months

Ozone Inhalation Impairs Coronary Artery Dilation via Intracellular Oxidative Stress: Evidence for Serum-Borne Factors as Drivers of Systemic Toxicity

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "(Photo of a man on a service truck swepping of the service bed, trash in the background, and more.)

Gas Generation from Actinide Oxide Materials

This document captures relevant work performed in support of stabilization, packaging, and long term storage of plutonium metals and oxides. It concentrates on the issue of gas generation with specific emphasis on gas pressure and composition. Even more specifically, it summarizes the basis for asserting that materials loaded into a 3013 container according to the requirements of the 3013 Standard (DOE-STD-3013-2000) cannot exceed the container design pressure within the time frames or environmental conditions of either storage or transportation. Presently, materials stabilized and packaged according to the 3013 Standard are to be transported in certified packages (the certification process for the 9975 and the SAFKEG has yet to be completed) that do not rely on the containment capabilities of the 3013 container. Even though no reliance is placed on that container, this document shows that it is highly likely that the containment function will be maintained not only in storage but also during transportation, including hypothetical accident conditions. Further, this document, by summarizing materials-related data on gas generation, can point those involved in preparing Safety Analysis Reports for Packages (SARPs) to additional information needed to assess the ability of the primary containment vessel to contain the contents and any reaction products that might reasonably be produced by the contents

Additional file 4: of Muscle-specific regulation of right ventricular transcriptional responses to chronic hypoxia-induced hypertrophy by the muscle ring finger-1 (MuRF1) ubiquitin ligase in mice

Figure S2. Literature Net analysis of differentially expressed genes in MuRF1 Tg + right ventricles after chronic hypoxia challenge compared to wildtype controls. Analysis of the top 28 genes increased (> 3 fold) and top 18 genes decreased (<− 3 fold) listed in Fig. 3b using Literature Net on Duke Gather ( http://changlab.uth.tmc.edu/gather/gather.py ). (PDF 24 kb