NPS-SCAT: Systems Engineering and Payload Subsystem Design, Integration, and Testing of NPS' First CubeSat (original) (raw)
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Simulation of the deployment and orbit operations of the NPS-SCAT CubeSat
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The Naval Postgraduate School SCAT++ CubeSat Program
2009
The Naval Postgraduate School (NPS) Small Satellite program provides graduate students with hands-on experience designing, building, and operating satellites. NPS's first satellite, Petite Amateur Navy Satellite (PANSAT) was deployed through the NASA Hitchhiker program on board STS-95 on October 29, 1998 and operated for several years. As a follow-on project to PANSAT, NPS plans to launch the Spacecraft Architecture and Technology Demonstration Satellite 1 (NPSAT1) sometime in the future. Currently the NPS Small Satellite program is evolving to include CubeSats to further enhance the educational and research opportunities at NPS. As ongoing university, government, and commercial satellite programs are showing, the CubeSat standard is proving to be a unique platform for focused research objectives and engineering design innovation. The first CubeSat to be developed at NPS is called the NPS Solar Cell Array Tester (NPS-SCAT). The overall goal of the project is to gain experience in all phases of CubeSat construction, deployment, and operations by implementing just one of NPSAT1's many experiments: a solar cell tester. The program is creating a baseline subsystem design for future NPS CubeSats, allowing the NPS Small Satellite program to efficiently use a standard satellite bus for focused research objectives of national interest.
FFF NPS SCAT Systems Engineering and Payload
The Naval Postgraduate School's first CubeSat, the NPS Solar Cell Array Tester (NPS-SCAT), demonstrates the capability of the CubeSat form factor as a technology test bed by implementing a single experiment-a solar cell tester. The need to validate solar cell performance on orbit, in the harsh space environment, is recurring with the continued development of advanced, untested solar cells. By using a relatively inexpensive platform, the CubeSat, such solar cells can be tested and the risk for larger satellites mitigated with this experiment. This thesis discusses the design and construction process of the solar cell array tester payload along with its integration with the remaining satellite subsystems (command and data handling subsystem, communications subsystem, and electrical power subsystem) including the problems encountered along the way and the chosen solutions. In addition, the systems engineering and testing procedures developed for and conducted on the satellite engineering design unit will be described in detail. 15. NUMBER OF PAGES 190
The 16th International Conference on Space Operations, Cape Town, South Africa, 3-5 May 2021, 2021
The CubeSat standard, relatively short launch timescale, and orders of magnitude difference in cost in comparison to large scale missions, has allowed universities and smaller institutions to develop space missions. The Educational Irish Research Satellite (EIRSAT-1) is a 2U CubeSat being developed in University College Dublin (UCD) as part of the second round of the European Space Agency (ESA) Education Office's Fly Your Satellite! (FYS) Programme. EIRSAT-1 is a student-led project to build, test, launch and operate Ireland's first satellite. CubeSats typically use commercial off-the-shelf (COTS) components to facilitate new teams in developing a satellite on a rapid timescale. While some of the EIRSAT-1 subsystems are COTS procured from AAC Clyde Space, EIRSAT-1 has three novel experiments on-board which have been developed in UCD. The spacecraft's Antenna Deployment Module has also been designed and built in-house. The on-board computer (OBC), procured from AAC Clyde Space, has been adapted to interface with these novel hardware components, accompanied by in-house developed software and firmware. All of these innovative subsystems complicate the CubeSat functionality making it essential to document and rigorously test the operations procedures for EIRSAT-1. In preparation for launch with these novel spacecraft subsystems, the EIRSAT-1 Operations Manual is being developed and incrementally verified. The Operations Manual contains the procedures to command and control the satellite, account for nominal and non-nominal scenarios and guide the operator in determining the cause of any anomalies observed during the mission and facilitate recovery. A series of operations development tests (ODTs) have been designed and conducted for a robust verification process. Each procedure is written up by a member of the EIRSAT-1 Operations Team in the EIRSAT-1 Operations Manual format. During an ODT, an in-flight scenario is considered in which the procedure under test is required. The procedure is then followed by a team member who has not been involved in the procedure development process. The feedback from these tests and from the operators is used to improve the procedures and continually update the Operations Manual. This paper will present the approach to operations development used by the EIRSAT-1 team and discuss the lessons learned for CubeSat operations development, testing and pre-flight verification.
Development of the standard CubeSat deployer and a CubeSat class PicoSatellite
2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542), 2001
Cal Poly students are participating in the development of a new class of picosatellite, the CubeSat. CubeSats are ideal as space development projects for universities around the world. In addition to their significant role in educating space scientists and engineers, CubeSats provide a low-cost platform for testing and space qualification of the next generation of small payloads in space. A key component of the project is the development of a standard CubeSat deployer. This deployer is capable of releasing a number of CubeSats as secondary payloads on a wide range of launchers. The standard deployer requires all CubeSats to conform to common physical requirements, and share a standard deployer interface. CubeSat development time and cost can be significantly reduced by the development of standards that are shared by a large number of spacecraft.
CubeSat Developmental Programs-Working with the Community
AIAA SPACE 2009 Conference & Exposition, 2009
The last year has seen an explosion of interest in designing, building, and flying CubeSatclass objects in space. Though there are many unanswered questions surrounding the military usefulness of this new class of space hardware, a few key trends are developing in testing the prototypes for the future military systems. An interface standard is emerging that will allow rapid build and integration of many CubeSats at one time into a multiple launcher configuration. Additionally, focal points to bring the community together into an organized team and do the requisite systems engineering to ensure all components can be flown in a compatible CONOP are emerging. If all goes well in integration of these components, the USAF will gain invaluable analytic and test data to establish the utility and price point appropriate for these small entities. This paper describes the trends in the interface standards and discusses the consolidation of efforts across the CubeSat community over the last year.
Overview of the NUTS CubeSat Project
The NTNU Test Satellite (NUTS) project is a student satellite project at the Norwegian University of Science and Technology (NTNU). The project is part of the national student satellite program in Norway, managed by the Norwegian Centre for Space related Education, NAROM. The NUTS project aims to design, develop, test, launch and operate a double CubeSat by 2014. Students from different study programs will do the main part of the work, supported by project management and technical staff. The work will be per-formed as part of the student's project-and master thesis. The design has been chosen to be generic and modular, so the satellite-bus can support dif-ferent payloads. As a payload for this satellite, an IR-camera will be imple-mented. Recruitment and education of skillful students constitute a main part of the projects goals. Through hands-on experience, the students will be able to master different skills needed in their jobs after graduation. NTNU is a university offering ...