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Author : Arthur L. Pavel
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.3/5 (91 download)
Download or read book Plasma Environment of a Synchronous Orbit Satellite written by Arthur L. Pavel and published by . This book was released on 1976 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arthur L. Pavel
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (212 download)
Download or read book Plasma Environment of a Synchronous Orbit Satellite written by Arthur L. Pavel and published by . This book was released on 1976 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communication and earth observation satellites are frequently being placed in synchronous earth orbit. To increase the system life and survivability of these satellites, spacecraft designers and builders must better understand the synchronous space environment. The occurrence of environmentally linked anomalous behavior aboard several synchronous satellites has made the need for a better understanding of the synchronous environment particularly evident. During the next few years there is considerable activity planned towards characterizing the synchronous orbit environment, and these effects should provide the needed environmental definition. In the interim, this report is directed towards consolidating existing published data on synchronous conditions in a form useful to those currently having to make design decisions about synchronous space systems. (Author).
Author : Arthur L. Pavel
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (212 download)
Download or read book Plasma Environment of a Synchronous Orbit Satellite written by Arthur L. Pavel and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communication and earth observation satellites are frequently being placed in synchronous earth orbit. To increase the system life and survivability of these satellites, spacecraft designers and builders must better understand the synchronous space environment. The occurrence of environmentally linked anomalous behavior aboard several synchronous satellites has made the need for a better understanding of the synchronous environment particularly evident. During the next few years there is considerable activity planned towards characterizing the synchronous orbit environment, and these effects should provide the needed environmental definition. In the interim, this report is directed towards consolidating existing published data on synchronous conditions in a form useful to those currently having to make design decisions about synchronous space systems. (Author).
Author : Henry Berry Garrett
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (91 download)
Download or read book Modeling of the Geosynchronous Orbit Plasma Environment - Part 1 written by Henry Berry Garrett and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the role of the environment in generating spacecraft potential variations at geosynchronous orbit is well documented, variations in the ambient environment itself have not been well-defined. Similarly, no studies of the environment have attempted an analytic formulation of the various parameters needed to model the spacecraft charging phenomenon. This paper describes the parameters needed to formulate such a model and outlines a systematic procedure for constructing a simple analytic model that includes the effects of local time and geomagnetic activity. Observational data from the ATS- 5 satellite are analyzed using this procedure to give a preliminary analytic description of the geosynchronous environment in the form of a FORTRAN program.
Author : Henry B. Garrett
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Modeling of the Geosynchronous Orbit Plasma Environment written by Henry B. Garrett and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary statistical analysis of the ATS-5 and ATS-6 geosynchronous plasma data has been carried out. Variations in the electron and ion currents and temperatures, as represented by the single Maxwellian component temperatures T(AVG) and T(RMS), are evaluated with respect to local time and geomagnetic activity. The potential on the satellites is similarly evaluated. Results indicate that the geosynchronous plasma cannot be adequately represented by a simple Maxwellian distribution and that, at the very least, a two component Maxwellian is necessary. The electron current and eclipse potential were found to vary strongly with K sub p while the temperatures only varied weakely. Local time variations in temperature and current were observed but these were outweighted by a significant local time variation in satellite potential which peaked near midnight. An explanation of these results is proposed in terms of a simple model of the time evolution of the plasma following an injection. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (227 download)
Download or read book Specification of the Plasma Environment at Geosynchronous Orbit in the Energy Range 87 EV to 288 KeV. written by and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The particle measurements by the P78-2 SCATHA satellite at near geosynchronous altitudes have been analyzed to obtain average electron and proton fluxes in the energy range 87 eV to 288 keV. The variation of the fluxes about the average values is also reported and the average fluxes are compared to those measured during an intense spacecraft charging event on September 22, 1982. These calculations provide a representation of the plasma environment, which can be used to quantify the surface charging of spacecraft materials in geosynchronous orbit.
Author : Sherman E. DeForest
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (227 download)
Download or read book Specification of the Natural Plasma Environment at Geosynchronous Orbit written by Sherman E. DeForest and published by . This book was released on 1978 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has made extensive use of data taken by instruments funded by NASA contracts NAS 5-10364 (ATS-5) and NAS 5-21055 (ATS-6). Much use has been made of software also developed under the same contracts. The present contract was negotiated as a result of the realization that the UCSD plasma instruments onboard the ATS spacecraft could be used to specify an environmental model which would be of use to the Air Force in developing design specifications for spacecraft to prevent faulty operation due to environmentally induced electrostatic charging. In addition, reorganization and study of the existing data would also be of use in developing models which could be of use in predicting times when hazards to spacecraft from charging might be great. Within the next year, SCATHA will make the first observations from a vehicle specifically designed to study charging at geosynchronous orbit. We expect that refinements to the data presented here will result from that program, and that new models will result.
Author : Henry B. Garrett
Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.:/5 (227 download)
Download or read book Modeling of the Geosynchronous Orbit Plasma Environment. Part 3. ATS-5 and ATS-6 Pictorial Data Atlas written by Henry B. Garrett and published by . This book was released on 1979 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data on the geosynchronous plasma environment derived from the UCSD plasma detectors on the ATS-5 and ATS-6 satellites have been carefully compiled into a pictorial atlas. The atlas consists of 12 days of data from 1969 (ATS-5), 38 days from 1970 (ATS-5), 37 days from 1974 (ATS-6), and 8 days from 1976 (ATS-6). The data are 10-min averages of the first four moments of the plasma distribution function for the electrons and ions. The data are presented in the form of spectrograms and line plots along with detailed ephemeris and geophysical information. Two computer tapes are available, the formats of which are given in an appendix. (Author).
Author : Henry B. Garrett
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (227 download)
Download or read book Modeling of the Geosynchronous Orbit Plasma Environment, Part I. written by Henry B. Garrett and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the role of the environment in generating spacecraft potential variations at geosynchronous orbit is well documented, variations in the ambient environment itself have not been well-defined. Similarly, no studies of the environment have attempted an analytic formulation of the various parameters needed to model the spacecraft charging phenomenon. This paper describes the parameters needed to formulate such a model and outlines a systematic procedure for constructing a simple analytic model that includes the effects of local time and geomagnetic activity. Observational data from the ATS- 5 satellite are analyzed using this procedure to give a preliminary analytic description of the geosynchronous environment in the form of a FORTRAN program.
Author : J. L. Roeder
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (347 download)
Download or read book Specification of the Plasma Environment at Geosynchronous Orbit in the Energy Range 87 EV to 288 KeV written by J. L. Roeder and published by . This book was released on 1996 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry B. Garrett
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 ( download)
Download or read book The Current Status of Prediction of Low Energy Plasma Interactions with Space Systems written by Henry B. Garrett and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309051258
Total Pages : 225 pages
Book Rating : 4.3/5 (9 download)
Download or read book Orbital Debris written by National Research Council and published by National Academies Press. This book was released on 1995-07-07 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Author : Carlos I Calle
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681744783
Total Pages : 105 pages
Book Rating : 4.6/5 (817 download)
Download or read book Electrostatic Phenomena on Planetary Surfaces written by Carlos I Calle and published by Morgan & Claypool Publishers. This book was released on 2017-03-15 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diverse planetary environments in the solar system react in somewhat different ways to the encompassing influence of the Sun. These different interactions define the electrostatic phenomena that take place on and near planetary surfaces. The desire to understand the electrostatic environments of planetary surfaces goes beyond scientific inquiry. These environments have enormous implications for both human and robotic exploration of the solar system. This book describes in some detail what is known about the electrostatic environment of the solar system from early and current experiments on Earth as well as what is being learned from the instrumentation on the space exploration missions (NASA, European Space Agency, and the Japanese Space Agency) of the last few decades. It begins with a brief review of the basic principles of electrostatics.
Author : George A. Bakalyar
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (227 download)
Download or read book Electronic Radiation in the Vicinity of Synchronous Orbit Satellites: Literature Search written by George A. Bakalyar and published by . This book was released on 1977 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: A categorized list of representative references are presented that apply to the task of estimating and predicting undesirable radiation incident to a satellite in synchronous orbit. The categories of references address basic elements of the task. That is, some references apply to estimating the particle and field environment about the satellite and other references are relevant to estimating the behavior of the medium, either as supporting of electrical discharge or the excitation of radiation through instability and/or the presence of plasma boundaries. Both theoretical and experimental references are included in each category where possible. The breakdown of Plasma, which is a 'necessary' condition to the generation of discharge currents in plasma, is a much studied phenomenon both theoretically and experimentally. The references 6a of this report, together with the bibliographies associated with each reference, provide a representative information base to support either a critical review of important elements of breakdown and electrical discharge literature from about 1960 to the present time, or an ordered resume of breakdown characteristics as determined in that time period. (Author).
Author : Sherman E. DeForest
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (227 download)
Download or read book Specification of Geosynchronous Plasma Environment written by Sherman E. DeForest and published by . This book was released on 1977 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from UCSD plasma instruments on the ATS 5 and 6 satellites has been studied to specify the geosynchronous plasma environment as it affects electrostatic charging of spacecraft. The emphasis of the initial study has been primarily to service the needs of the design engineer; while simultaneously establishing the context in which a more general model could be developed. The report includes an environmental specification plus a review of geosynchronous plasma and wave phenomena. (Author).
Author : P. Bliokh
Publisher : Springer Science & Business Media
ISBN 13 : 9401585571
Total Pages : 266 pages
Book Rating : 4.4/5 (15 download)
Download or read book Dusty and Self-Gravitational Plasmas in Space written by P. Bliokh and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diverse and often surprising new facts about planetary rings and comet environments that were reported by the interplanetary missions oflate 1970s - 1980s stimulated investigations of the so-called dusty plasma. The number of scientific papers on the subject that have been published since is quite impressive. Recently, a few surveys and special journal issues have appeared. Time has come to integrate some of the knowledge in a book. Apparently, this is the first monograph on dusty and self-gravitational plasmas. While the circle of pertinent problems is rather clearly defined, not all of them are equally represented here. The authors have concentrated on cooperative phenomena (Le. waves and instabilities) in the dusty plasma and the effects of self-gravitation. At the same time, in an attempt to present the vast material consistently, we have included such topics as electrostatics of the dusty plasma and gravitoelectrodynamics of individual charged particles. Also mentioned are astrophysical implications, mostly concerning planetary rings. We hope that the book shall be of interest and value both to specialists and those (astro )physicists who have just discovered this area of plasma physics. We are thankful to many scientists actively working in the field of dusty plasma physics who have generously let us become acquainted with their results, sometimes prior to publication of their own papers: U. de Angelis, N. D'Angelo, o. Havnes, A. Mendis, M. Rosenberg, P. Shukla, F. Verheest, and E. Wollman.
Author : C. P. Pike
Publisher :
ISBN 13 :
Total Pages : 918 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings of the Spacecraft Charging Technology Conference written by C. P. Pike and published by . This book was released on 1977 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Spacecraft Charging Technology Conference, sponsored by the USAF and NASA, was held in October 1976. The Proceedings contain over 50 papers dealing with subjects including: (1) the geosynchronous plasma environment, (2) spacecraft modeling, (3) spacecraft materials characterization, (4) spacecraft materials development, (5) satellite design and test. In addition, an executive summary and the transcript of a panel discussion are included. (Author).
