Development and Implementation of Joint Programs in Laser Ranging and Other Space Geodetic Techniques PDF Download
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720476429
Category :
Languages : en
Pages : 34
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Book Description
Dr. Michael R. Pearlman provided technical and management support to the NASA Space Geodesy Program.Carter, David (Technical Monitor) and Pearlman, Michael R.Goddard Space Flight CenterGEODESY; NASA SPACE PROGRAMS; PROJECT MANAGEMENT; LASER RANGING
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720476429
Category :
Languages : en
Pages : 34
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Book Description
Dr. Michael R. Pearlman provided technical and management support to the NASA Space Geodesy Program.Carter, David (Technical Monitor) and Pearlman, Michael R.Goddard Space Flight CenterGEODESY; NASA SPACE PROGRAMS; PROJECT MANAGEMENT; LASER RANGING
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 260
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Author:
Publisher:
ISBN:
Category : Geodynamics
Languages : en
Pages : 64
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 728
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Author: Irwin I. Shapiro
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
Three distinct tasks were undertaken to advance the application of space techniques to the measurement of geodetic parameters: error analyses were performed to estimate the accuracy with which the locations of satellite tracking stations and the motion of the earth's pole may be determined from laser-ranging observations of the LAGEOS satellite; a numerical model of the moon's rotation was developed to support the analysis of lunar laser ranging observations; and a very-long-baseline interferometry (VLBI) system was constructed and installed at the Onsala Space Observatory in Sweden for use in a program to monitor the earth's rotation through observations of extragalactic radio sources. The details of this work have been described in three previously published reports. (Author).
Author: United States. Congress. House. Committee on Science and Technology. Subcommittee on Science, Research, and Technology
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 600
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Author: United States. Congress. House. Committee on Science and Technology
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723241215
Category :
Languages : en
Pages : 114
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Book Description
Although Very Long Baseline Interferometry (VLBI) and Satellite Laser Ranging (SLR) are becoming increasingly important tools for geodynamic studies, their future role may well be fulfilled by using alternative techniques such as those utilizing the signals from the Global Positioning System (GPS). GPS, without the full implementation of the system, already offers a favorable combination of cost and accuracy and has consistently demonstrated the capability to provide high precision densification control in the regional and local areas of the VLBI and SLR networks. This report reviews VLBI and SLR vis-a-vis GPS and outlines the capabilities and limitations of each technique and how their complementary application can be of benefit to geodetic and geodynamic operations. It demonstrates, albeit with a limited data set, that dual-frequency GPS observations and interferometric type analysis techniques make possible the modelling of the GPS orbits for several days with an accuracy of a few meters. The use of VLBI or SLR sites as fiducial stations together with refinements in the orbit determination procedures can greatly reduce the systematic errors in the GPS satellite orbits used to compute the positions of non-fiducial locations. In general, repeatability and comparison with VLBI of the GPS determined locations are of the order of between 2 parts in 10 to the 7th power and 5 parts in 10 to the 8th power for baseline lengths less than 2000 km. This report is mainly a synthesis of problems, assumptions, methods and recent advances in the studies towards the establishment of a GPS-based system for geodesy and geodynamics and is one phase in the continuing effort for the development of such a system. To some, including the author, it seems reasonable to expect within the next few years that more evidence will show GPS to be as a powerful and reliable a tool as mobile VLBI and SLR are today, but largely more economical. Delikaraoglou, Demitris Goddard Space Flight Center GL...
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on HUD-Independent Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1306
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Author: United States. President
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 116
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