On Orbit Servicing System Architectures For Proliferated Low Earth Orbit Constellations

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On-Orbit Servicing System Architectures for Proliferated Low Earth Orbit Constellations

Author : Michael Adam Luu
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis On-Orbit Servicing System Architectures for Proliferated Low Earth Orbit Constellations by : Michael Adam Luu

Download or read book On-Orbit Servicing System Architectures for Proliferated Low Earth Orbit Constellations written by Michael Adam Luu and published by . This book was released on 2021 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: On-orbit servicing (OOS) presents new opportunities for refueling, inspection, repair, maintenance, and upgrade of spacecraft (s/c). OOS is a significant area of need for future space growth, enabled by the maturation of technology and the economic prospects. This congestion is leading s/c operators to explore how they can leverage OOS. OOS missions for s/c in geostationary orbit (GEO) are currently underway. This is being driven by the closure of the business case for refueling long lived monolithic chemically propelled GEO assets. However, there are currently no plans for OOS of low-earth orbit (LEO) s/c, aside from technology demonstrations, because of their shorter design life and lower cost. It will become particularly important to enable the servicing of LEO s/c as the industry shifts its focus towards LEO. Designing OOS systems for LEO constellations differs from that of GEO based systems, this difference is attributed to LEO's proliferation of satellites, environmental effects (J2 nodal precession, drag), and different constellation patterns. Satellite constellations in LEO are becoming more distributed due to increased access, distributed risk, flexibility, and cost. OOS of s/c may enable the reduction of requirements on subsystems such as safety and the need for redundancy. These requirement reductions will enable lower risks, lower costs, and increased system resilience. This paper analyzes the benefits of OOS in proliferated LEO constellations. Several OOS system architectures are modeled in various scenarios; in each system architecture the model will vary qualities such as mass, altitudes, time, propulsion system, maneuver, and type of service. The objective of the model will be to optimize for cost, time, and utility to generate a tradespace for an OOS system architecture. OOS provides higher utility over the comparative alternative of using spare satellites in some scenarios. The utility of OOS provides even more utility when considering failure rates of satellites and allowing for an increase in failure rates when adopting an OOS system.

Design and Analysis of On-Orbit Servicing Architectures for the Global Positioning System Constellation

Author : Gregg Leisman
Publisher :
ISBN 13 : 9781423546627
Total Pages : 295 pages
Book Rating : 4.5/5 (466 download)

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Book Synopsis Design and Analysis of On-Orbit Servicing Architectures for the Global Positioning System Constellation by : Gregg Leisman

Download or read book Design and Analysis of On-Orbit Servicing Architectures for the Global Positioning System Constellation written by Gregg Leisman and published by . This book was released on 1999-03-01 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellites are the only major Air Force systems with no maintenance, routine repair, or upgrade capability. The result is expensive satellites and a heavy reliance on access to space. At the same time, satellite design is maturing and reducing the cost to produce satellites with longer design lives. This works against the ability to keep the technology on satellites current without frequent replacement of those satellites. The Global Positioning System Joint Program Office realizes that it must change its mode of operations to quickly meet new requirements while minimizing cost. The possibility of using robotic servicing architectures to solve these problems is considered in this thesis. The authors accomplished this through a systems engineering and decision analysis approach in which a number of different alternatives for on-orbit satellite repair and upgrade were analyzed. This approach involved defining the problem framework and desired user benefits, then developing different system architectures and determining their performance with regard to the specified benefits. Finally, the authors used decision analysis to evaluate the alternative architectures in the context of the user's goals. The results indicate favorable benefit-to-cost relationships for on-orbit servicing architectures as compared to the current mode of operation.

Mission Design & Implementation of Satellite Constellations

Author : Jozef C. van der Ha
Publisher : Springer
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Mission Design & Implementation of Satellite Constellations by : Jozef C. van der Ha

Download or read book Mission Design & Implementation of Satellite Constellations written by Jozef C. van der Ha and published by Springer. This book was released on 1998-10-31 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings from the November 1997 workshop. Thirty-seven papers discuss satellite applications in the fields of telecommunications, navigation, and Earth Observations. Real- world applications that are addressed include voice and data communications, navigation, and data relay services, with specific studies addressing constellation projects for telephone, data massaging, and broad-band data communication services like Iridium, Orbcomm, Skybridge, Celestri, and Teledesic. Also, collision and orbital debris risk issues associated with satellite constellations, as well as proposed mitigation measures, receive attention. No index. Annotation copyrighted by Book News, Inc., Portland, OR

Low Earth Orbit Satellite Design

Author : George Sebestyen
Publisher : Springer
ISBN 13 : 3319683152
Total Pages : 320 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Low Earth Orbit Satellite Design by : George Sebestyen

Download or read book Low Earth Orbit Satellite Design written by George Sebestyen and published by Springer. This book was released on 2018-02-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the number of satellites being built and launched into Earth’s orbit has grown immensely, alongside the field of space engineering itself. This book offers an in-depth guide to engineers and professionals seeking to understand the technologies behind Low Earth Orbit satellites. With access to special spreadsheets that provide the key equations and relationships needed for mastering spacecraft design, this book gives the growing crop of space engineers and professionals the tools and resources they need to prepare their own LEO satellite designs, which is especially useful for designers of small satellites such as those launched by universities. Each chapter breaks down the various mathematics and principles underlying current spacecraft software and hardware designs.

Policy and Design Courses of Action to Improve Resilience of Proliferated Low Earth Orbit Constellations Against Adverse Solar Weather

Download Policy and Design Courses of Action to Improve Resilience of Proliferated Low Earth Orbit Constellations Against Adverse Solar Weather PDF Online Free

Author : Jonathan Garrett Novak
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

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Book Synopsis Policy and Design Courses of Action to Improve Resilience of Proliferated Low Earth Orbit Constellations Against Adverse Solar Weather by : Jonathan Garrett Novak

Download or read book Policy and Design Courses of Action to Improve Resilience of Proliferated Low Earth Orbit Constellations Against Adverse Solar Weather written by Jonathan Garrett Novak and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are three main questions answered by this thesis: 1) Would an extreme event on a scale commensurate to historically observed events induce catastrophic failures to current New Space mega-constellations? 2) How do increasing levels of constellation proliferation alter resilience to adverse solar weather? And 3) How do increasing levels of constellation proliferation alter the effectiveness of courses of action to improve resilience? In order to answer these questions, solar weather effects are modeled using a unique process of correlating solar weather event intensities to radiation effects leading to failure. Representative constellation populations are dynamically altered with respect to a Monte Carlo based stochastic simulation of solar cycle 25. The performance degradation, value, and resilience of each system is recorded throughout a solar cycle in baseline cases and then compared to cases employing alternative designs or policy criteria. "The results of this thesis show that New Space architectures are resilient to the radiation effects of even extreme case scenarios of solar weather. The results also show that, of the parameters tested, shielding is among the most effective for improving the resilience of highly proliferated systems. The results also imply that increasing manufacturing and launch timelines are most effective at improving resilience when increased together, rather than one parameter in isolation. Finally, through a net present value analysis, this thesis demonstrates how policies may be valued and assessed. A sample valuation for an emergency launch insurance policy is shown in the results as well as evidence supporting "Careful COTS" as a viable and effective methodology for ensuring resilience of COTS-enabled, proliferated systems. All code, datasets, and sample results depicted are provided in a GitHub at the end of the thesis.

Exploring Design and Policy Options for Orbital Infrastructure Projects

Author : Putbrese. Benjamin L.
Publisher :
ISBN 13 :
Total Pages : 173 pages
Book Rating : 4.:/5 (92 download)

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Book Synopsis Exploring Design and Policy Options for Orbital Infrastructure Projects by : Putbrese. Benjamin L.

Download or read book Exploring Design and Policy Options for Orbital Infrastructure Projects written by Putbrese. Benjamin L. and published by . This book was released on 2015 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The space industry is currently at a significant inflection point. New economies are forming in low- Earth orbit (LEO), driven by miniaturization of technologies and the promise of lower launch costs, which should then allow many of these LEO systems to capitalize on designs incorporating smaller, shorter-lived spacecraft in highly-disaggregated constellations. Meanwhile, many spacecraft at geosynchronous orbit are continuing along a trend towards increasingly massive and longer-lasting satellites, and while they do represent some of the most exquisite, highest-performing satellites ever launched, some experts now feel that such trends are unsustainable and are beginning to place increasing strain on the underlying industry. To support current and future spacecraft, orbital infrastructures have been proposed as a means of providing on-orbit services to customer spacecraft and guiding space architectures towards more sustainable paradigms. In LEO, an infrastructure of communications and data relay spacecraft is envisioned as a means of aiding new and existing space enterprises in the areas of satellite connectivity and downlink capability. Meanwhile, an on-orbit servicing (OOS) infrastructure, located primarily in geosynchronous orbit, would provide services such as repair, rescue, refueling, and upgrading of customer spacecraft, in order to alleviate the identified space industry trends. Physics and cost modeling, as well as tradespace exploration, are used to identify optimal LEO infrastructure designs, while system dynamics modeling is used to assess the trends likely to occur in the overall space industry as OOS is incorporated into space architectures. The primary conclusion from the analysis of LEO infrastructure designs is that, when designing for global connectivity, there is an optimal design point between a small constellation of larger spacecraft and a very large constellation of small spacecraft, but this will also depend on the intended mission of the infrastructure and the number of customers expecting to be serviced. Then, for an OOS infrastructure, it is determined that relatively low costs and heavy incorporation of servicing capabilities into customer architectures are needed to ensure long-term sustainability of such a project. Finally, the policy implications for both infrastructure concepts are discussed, with a heavy focus on options for the funding and development regimes employed to implement the infrastructures, as well as the major political and legal implications expected to accompany these projects.

An Approach for Optimizing the On-orbit Servicing Architecture for a Given Client Satellite Constellation

Author : Michael L. McConnell
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (671 download)

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Book Synopsis An Approach for Optimizing the On-orbit Servicing Architecture for a Given Client Satellite Constellation by : Michael L. McConnell

Download or read book An Approach for Optimizing the On-orbit Servicing Architecture for a Given Client Satellite Constellation written by Michael L. McConnell and published by . This book was released on 2005 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

2000 Survey of Distributed Spacecraft Technologies and Architectures for NASA's Earth Science Enterprise in the 2010-2025 Timeframe

Download 2000 Survey of Distributed Spacecraft Technologies and Architectures for NASA's Earth Science Enterprise in the 2010-2025 Timeframe PDF Online Free

Author : Ronald L. Ticker
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis 2000 Survey of Distributed Spacecraft Technologies and Architectures for NASA's Earth Science Enterprise in the 2010-2025 Timeframe by : Ronald L. Ticker

Download or read book 2000 Survey of Distributed Spacecraft Technologies and Architectures for NASA's Earth Science Enterprise in the 2010-2025 Timeframe written by Ronald L. Ticker and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Emergence of Second-generation Low Earth Orbit Satellite Constellations

Author : Veronica Lynn Foreman
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Emergence of Second-generation Low Earth Orbit Satellite Constellations by : Veronica Lynn Foreman

Download or read book Emergence of Second-generation Low Earth Orbit Satellite Constellations written by Veronica Lynn Foreman and published by . This book was released on 2018 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern proposals for Low Earth Orbit (LEO) satellite constellations underscore the tremendous potential and versatility of distributed spacecraft missions (DSMs), but they have also begun to stress the limits of the existing development paradigm. A new generation of LEO constellations is emerging, and understanding the related technical, economic, and policy landscapes will be critical to fostering their success. The most significant value of this research effort comes from its breadth. LEO constellations are becoming essential tools for a wide range of applications, and this work seeks to examine the diverse set of topics facing modern constellation stakeholders. Through a multidisciplinary, systems engineering evaluation, this thesis synthesizes current knowledge gaps and questions related to second-generation LEO constellations. The investigation begins with a discussion of the historical development of DSMs, and three distinct eras of constellation use are identified. The initial time period, 1959 to 1996, captures the early DSMs that framed the development of modern systems. The first generation spans from 1997 to 2009. It begins with the installation of the first commercial, telecommunications constellations and demonstrates logistic growth for commercial DSM member spacecraft. Growth rates surge again as the second generation begins in 2010, and the data reflect current trends toward commercial, remote-sensing applications of DSM systems. The second generation of LEO constellations coincides with an approximately 189% increase in the annual NGSO satellite launch rate and a 92% increase in the number of constellation systems initialized each year over the first generation. This work continues by underscoring technologies that have enabled this growth through a survey of relevant literature and patent filings. Contemporary issues in constellation technology policy are also examined. Through a series of cost and risk focused case studies, limitations within the existing development and maintenance paradigms are illustrated. The new generation of constellations is challenging the assumptions that have traditionally guided such analyses, and opportunities for further framework development are discussed. This thesis represents a contribution to the advancement of constellation systems by assessing the viability of the existing paradigm and identifying critical areas of future research.

Cost Effectiveness of On-Orbit Servicing

Author :
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (495 download)

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Book Synopsis Cost Effectiveness of On-Orbit Servicing by :

Download or read book Cost Effectiveness of On-Orbit Servicing written by and published by . This book was released on 2009 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was performed to model on-orbit servicing (OOS) of a pre-existing Low Earth Orbit and geostationary constellation. A conceptual model of each spacecraft was developed to determine mass and power allocation required based on the mission of the spacecraft. An OOS mass was added to the spacecraft which represented the mass of the components necessary to allow the spacecraft to be docked with. The servicing missions modeled were refueling, replacement of parts, and relocation. The driving factor of cost was sensitivity to OOS mass. For most constellations, OOS was not cost effective unless the OOS mass was very low. 15.

Benefits of a Space-Based Group System Architecture - Payload Integration, On-Orbit Operations, Launch Segment, Communications, DARPA, Low Earth Orbit, ISS International Space Station, Geostationary

Download Benefits of a Space-Based Group System Architecture - Payload Integration, On-Orbit Operations, Launch Segment, Communications, DARPA, Low Earth Orbit, ISS International Space Station, Geostationary PDF Online Free

Author : U. S. Military
Publisher :
ISBN 13 : 9781976831911
Total Pages : 87 pages
Book Rating : 4.8/5 (319 download)

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Book Synopsis Benefits of a Space-Based Group System Architecture - Payload Integration, On-Orbit Operations, Launch Segment, Communications, DARPA, Low Earth Orbit, ISS International Space Station, Geostationary by : U. S. Military

Download or read book Benefits of a Space-Based Group System Architecture - Payload Integration, On-Orbit Operations, Launch Segment, Communications, DARPA, Low Earth Orbit, ISS International Space Station, Geostationary written by U. S. Military and published by . This book was released on 2018-01-07 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique study examines the use of smaller space-based group satellites. The volatility in today's economics has resulted in government attempts to reduce cost while maintaining performance. One of the elements examined by the Defense Advanced Research Projects Agency was the idea of fractionating a current monolithic satellite system into several smaller, space-based group (SBG) satellites. This architecture would allow for multiple, smaller, and less expensive satellites to work together to accomplish the several missions. This study focused on research and analysis of the system FireSat. The analysis removed the ground communications suite from the sensor platform. A Microsoft Excel spreadsheet was used to develop the resulting cost relation for the sensor-only satellite. Using assumptions provided by that analysis, three additional systems, currently in operation, were examined for cost savings if placed into the SBG. The Tracking and Data Relay Satellite was used as a basis for cost of a communications satellite. The cost analysis resulted in an estimated $52 million FY15 to the space segments alone. Additional research is required to determine cost savings within the full architecture and develop a risk-cost analysis to determine whether cost could be further reduced due to higher reliability, lower replacement cost risk, and longer lifetimes. CHAPTER I * INTRODUCTION * A. BACKGROUND * B. PURPOSE AND RESEARCH QUESTION * C. BENEFITS OF STUDY * D. SCOPE AND METHODOLOGY * CHAPTER II * SPACE-BASED GROUP COMPARISON * A. INTRODUCTION * B. MONOLITHIC ARCHITECTURE * 1. Concept Inception * 2. Design and Development * a. Multi-mission Design * b. Technological Limitations * c. Reliability Development * 3. Test and Employment * a. Payload Integration * b. Demand Requirements * c. On-Orbit Operations * C. UTILIZATION OF SPACE BASED GROUPS * 1. Development * 2. Overall Integration * 3. On-Orbit Maintainability * D. CHAPTER SUMMARY * CHAPTER III * RESEARCH ANALYSIS * A. INTRODUCTION * B. MISSION REQUIREMENTS * C. FRACTIONAL DIVISION * 1. Orbital Modeling * 2. Sensor Selection * 3. Operation and Support * a. Initial Operation Capability * b. Operation and Reliability * c. Repairability * 4. Launch Segment * 5. System Communications * a. Space-Based Communications * b. Ground Communications * D. CHAPTER SUMMARY * CHAPTER IV * APPLICATION OF STUDY * A. ANALYSIS SUMMARY * B. COST COMPARISONS * C. RECOMMENDATIONS * CHAPTER V * CONCLUSIONS * A. KEY POINTS AND RECOMMENDATIONS * B. AREAS FOR FUTURE RESEARCH * APPENDIX: * FIRESAT SBG SENSOR DESIGN

Design and Analysis of On-orbit Servicing Architectures for the Global Positioning System Constellation

Author : Gregg A. Leisman (CAPT, USAF.)
Publisher :
ISBN 13 :
Total Pages : 426 pages
Book Rating : 4.:/5 (132 download)

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Book Synopsis Design and Analysis of On-orbit Servicing Architectures for the Global Positioning System Constellation by : Gregg A. Leisman (CAPT, USAF.)

Download or read book Design and Analysis of On-orbit Servicing Architectures for the Global Positioning System Constellation written by Gregg A. Leisman (CAPT, USAF.) and published by . This book was released on 1999 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis

Author : Jordan Wachs
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis by : Jordan Wachs

Download or read book Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis written by Jordan Wachs and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of commercial satellites in Low Earth Orbit (LEO) increased more than four-fold in the decade between 2011 and 2021, a trend that is likely to continue due to the combination of increasingly capable technologies and business models [23] [24]. Building on the success of the LEO economy, there is potential for the establishment of a cislunar economy, supporting NASA and providing commercial goods and services well beyond LEO [20]. Successful creation of a cislunar economy will require commercial and government cooperation at an altogether new scale. The vastness of this new domain, however, makes the implementation of an adequate Space Situational Awareness (SSA) capability both necessary and extraordinarily difficult. Future aerospace leaders may find them selves breaking from traditional paradigms for architecture definition, systems engineering, and program costing [43]. Rather than wholesale abandonment of the processes that resulted in decades of successful innovation, however, future architects will benefit from the adoption of a new framework of systems thinking that combines the hard-won knowledge from the Aerospace domain with similarly deep lessons learned from other domains such as Finance and Real Options. This thesis explores a new framework for the analysis of large, dynamic, heterogeneous satellite constellation architectures by focusing on a multi-mode cislunar (SSA) capability. The combination of technical performance models, financial models, and real options analyses into a single tool allows system architects to identify and maintain multiple paths to program success by preserving flexibility in design and implementation throughout the program life cycle. The analyses presented in this thesis explore how Real Options can be used to increase the probability of mission success from as low as 2% to as high as 72% despite wide ranging uncertainty in system cost and performance.

On-orbit Servicing of Space Systems

Author : Donald M. Waltz
Publisher :
ISBN 13 :
Total Pages : 306 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis On-orbit Servicing of Space Systems by : Donald M. Waltz

Download or read book On-orbit Servicing of Space Systems written by Donald M. Waltz and published by . This book was released on 1993 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

From CubeSats to Constellations

Author : Anne Dorothy Marinan
Publisher :
ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (872 download)

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Book Synopsis From CubeSats to Constellations by : Anne Dorothy Marinan

Download or read book From CubeSats to Constellations written by Anne Dorothy Marinan and published by . This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of an Earth observing spacecraft constellation is to obtain global measurements with improved spatial and temporal resolution. The small size, low cost, standardized form factor, and increasing availability of commercial parts for CubeSats make them ideal for use in constellations. In this work, we provide an in-depth analysis of how to evolve from a single Earth-observing CubeSat to an effective CubeSat constellation. We first consider pointing capability provided by three different CubeSat attitude determination and control system (ADCS) architectures to an Earth-observing payload. Our approach of performing a comprehensive orbital altitude and inclination reference point analysis for all subsystems allows us not only to evaluate trades between subsystems when designing a CubeSat that may be manifest in any low-Earth orbit, but the reference point analysis also provides a database of impacts that the orbital parameters have on subsystems and performance for designing a constellation. Next, we consider the practical challenge of trying to launch and distribute a CubeSat constellation into a specific configuration. We suggest a cost-effective way to launch a constellation of CubeSats via consecutive secondary payload launch opportunities.

Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit

Author : Anthony D. Cutri
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (457 download)

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Book Synopsis Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit by : Anthony D. Cutri

Download or read book Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit written by Anthony D. Cutri and published by . This book was released on 1990 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of servicing and repair of satellites in low earth orbit (LEO) using the Orbital Maneuvering Vehicle (OMV) is examined. While current polar orbiting satellites, it could be economically applied to any LEO in which sufficient numbers of satellites are located or where individual satellite cost/ mission justify servicing. Increases in cost effectiveness and operational flexibility of in space systems can be realized when the capability to replenish consumable fluids, propellants and Orbital Replacement Units (ORUs) are incorporated into satellite design. ORUs can be placed in orbit using expendable launch vehicles (ELV), specifically selected to satisfy the mission need. Several suitable small payload, low cost boosters are now under development, with attainment of operational status expected in the early 1990's. The concept calls for modular satellite design and deployment of a space based support platform. New technology could be applied in the form of upgrades and on orbit modifications much more efficiently than the current abandon/replace policy for most satellite systems. The first chapters provide background on the proposed concept, OMV and ELVs. Several polar orbiting satellite systems providing mass summary breakdowns and current cost information are described and then OMV payload servicing using the flight telerobotic servicer is discussed. Comparison of estimated OMV satellite servicing costs vs. satellite replacement for several missions is tabulated.

Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit

Author : Anthony D. Cutri
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (457 download)

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Book Synopsis Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit by : Anthony D. Cutri

Download or read book Satellite Servicing Using the Orbital Maneuvering Vehicle in Low Earth Orbit written by Anthony D. Cutri and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of servicing and repair of satellites in low earth orbit (LEO) using the Orbital Maneuvering Vehicle (OMV) is examined. While current polar orbiting satellites, it could be economically applied to any LEO in which sufficient numbers of satellites are located or where individual satellite cost/ mission justify servicing. Increases in cost effectiveness and operational flexibility of in space systems can be realized when the capability to replenish consumable fluids, propellants and Orbital Replacement Units (ORUs) are incorporated into satellite design. ORUs can be placed in orbit using expendable launch vehicles (ELV), specifically selected to satisfy the mission need. Several suitable small payload, low cost boosters are now under development, with attainment of operational status expected in the early 1990's. The concept calls for modular satellite design and deployment of a space based support platform. New technology could be applied in the form of upgrades and on orbit modifications much more efficiently than the current abandon/replace policy for most satellite systems. The first chapters provide background on the proposed concept, OMV and ELVs. Several polar orbiting satellite systems providing mass summary breakdowns and current cost information are described and then OMV payload servicing using the flight telerobotic servicer is discussed. Comparison of estimated OMV satellite servicing costs vs. satellite replacement for several missions is tabulated.