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Space-Time Reference Systems (Paperback, 2013 ed.)
Loot Price: R2,359
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Space-Time Reference Systems (Paperback, 2013 ed.)
Series: Astronomy and Astrophysics Library
Expected to ship within 10 - 15 working days
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The high accuracy of modern astronomical spatial-temporal reference
systems has made them considerably complex. This book offers a
comprehensive overview of such systems. It begins with a discussion
of 'The Problem of Time', including recent developments in the art
of clock making (e.g., optical clocks) and various time scales. The
authors address the definitions and realization of spatial
coordinates by reference to remote celestial objects such as
quasars. After an extensive treatment of classical equinox-based
coordinates, new paradigms for setting up a celestial reference
system are introduced that no longer refer to the translational and
rotational motion of the Earth. The role of relativity in the
definition and realization of such systems is clarified. The topics
presented in this book are complemented by exercises (with
solutions). The authors offer a series of files, written in Maple,
a standard computer algebra system, to help readers get a feel for
the various models and orders of magnitude. Beyond astrometry, the
main fields of application of high-precision astronomical
spatial-temporal reference systems and frames are navigation (GPS,
interplanetary spacecraft navigation) and global geodynamics, which
provide a high-precision Celestial Reference System and its link to
any terrestrial spatial-temporal reference system. Mankind's urgent
environmental questions can only be answered in the context of
appropriate reference systems in which both aspects, space and
time, are realized with a sufficiently high level of accuracy. This
book addresses all those interested in high-precision reference
systems and the various techniques (GPS, Very Long Baseline
Interferometry, Satellite Laser Ranging, Lunar Laser Ranging)
necessary for their realization, including the production and
dissemination of time signals.
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