Download or read book Applications of Laser Ranging and VLBI Observations for Selenodetic Control written by Francis A. Fajemirokun and published by . This book was released on 1971 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of LASER Ranging and VLBI Observation for Selenodetic Control written by Francis Fajemirokun and published by . This book was released on 1971 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Laser Ranging and VLBI Observations for Selenodetic Control written by Francis A. Fajemirokun and published by . This book was released on 1971 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Laser Ranging and VLBI Observations for Selendetic Control written by Francis A. Fajemirokun and published by . This book was released on 1971 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Book catalog of the Library and Information Services Division written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Book Catalog of the Library and Information Services Division Subject index written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laser Ranging and Very Long Baseline Interferometry for Geodetic Applications written by Irwin I. Shapiro and published by . This book was released on 1978 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book Book Catalog of the Library and Information Services Division Author title series indexes written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Lunar Laser Ranging Data and Performance and Analysis of VLBI Observations for Geodetic Purposes written by C. C Counselman (III.) and published by . This book was released on 1980 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lunar laser ranging (LLR) observations made by the McDonald Observatory from 1970 through 1980 have been analyzed to estimate the variation of latitude and Universal Time (UT). We have compared these estimates with determinations of earth rotation from other techniques. For observations obtained in two one-week periods in September and October 1980, during the International 'MERIT' (Measurement of Earth Rotation and Intercomparison of Techniques) Short Campaign, the root-mean-square difference between LLR and very long baseline interferometry determinations of UT was 0.3 milliseconds. We have also used LLR determinations of UT to derive changes in length-of-day (lod) and compared these with changes in lod inferred from changes in the polar component of the earth's atmospheric angular momentum. A common, persistent approx. 50-day fluctuation was identified in these lod values.

Download or read book Analysis of Laser Ranging and VLBI Very Long Baseline Interferometry Observations for Geodetic Purposes written by United States. National Technical Information Service and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Laser Ranging and VLBI Observations for Geodetic Purposes written by I. I. Shapiro and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: From three (Very Long Baseline Interferometry) VLBI experiments carried out in 1977 and 1978, the distances between the antenna at Onsala (Sweden) and radio telescopes at Haystack (Massachusetts), Green Bank (West Virginia) and Owens Valley (California) have been determined with formal standard errors as small as a few centimeters and repeatability generally within the 99% confidence interval of the root-sum-squares of these standard errors. Overall it appears that subdecimeter precision has been achieved in these estimates of baseline lengths. Using these data, we have also determined changes in UT1 and in the x and y components of polar motion. (Author).

Download or read book Delft Progress Report written by and published by . This book was released on 1976 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Book Catalog of the Library and Information Services Division Shelf List catalog written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Similarity Transformations and Geodetic Network Distortions Based on Doppler Satellite Observations written by Alfred Leick and published by . This book was released on 1975 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Free Geometric Adjustment of the SECOR Equatorial Network Solution SECOR 27 written by Ivan Istvan Mueller and published by . This book was released on 1973 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific Applications of Lunar Laser Ranging written by J.D. Mulholland and published by Springer. This book was released on 2011-10-13 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress of science during the past centuries has been in some measure energized by the development of new technologies. People are no more intelligent now than they were five centuries ago, or indeed five millenia ago. The differences are in the pool of past experience and the availability of means for manipulating the physical and mental environment. Until fairly recently, the development of new technologies in astronomy and geodesy has served primarily either to broaden the scope of phenomena that could be studied or to improve the precision with which one could examine already-studied phenomena. There seemed to be no likelihood that a situation could arise similar to that in particle physics, where the uncertainty principle indicates that the observation of the state of an object alters that state, affecting the observation. Indeed, we have not yet reached that point, but certain of the new techniques have introduced a degree of complication and inter dependence perhaps not previously encountered in the macro sciences. When observational capability is so fine that the data can be corrupted by the tidal motions of the instruments, for example, then there are a myriad of physical effects that must be considered in analyzing the data; the happy aspect of this is that the data can be used to study exactly these same effects. The complication does not, however, extend only to predictive computations against which the data are compared.