News tagged with orbit determination
Precise orbit determination for Jason-1 satellite using on-board GPS data with centimeter-level accuracy
The Jason-1 satellite obits have been computed using the on-board GPS data and the SHORDE-III procedure. Various orbit validations, including comparison with the Precise Orbit Ephemeris produced by JPL, orbit overlaps, and ...
Space & Earth / Space Exploration
Feb 02, 2009 |
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Search results for orbit determination
Venus, a planetary portrait of inner beauty
(Phys.org) -- A Venus transit across the face of the sun is a relatively rare event -- occurring in pairs with more than a century separating each pair. There have been all of 53 transits of Venus across the ...
Space & Earth / Space Exploration
Jun 01, 2012 |
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Cosmic calculations: Advance will help astrophysicists explore where stars are born
A University of Delaware-led research team reports an advance in the June 1 issue of Science that may help astrophysicists more accurately analyze the vast molecular clouds of gas and dust where stars are bo ...
May 31, 2012 |
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Astronomers probe 'evaporating' planet around nearby star with Hobby-Eberly telescope
(Phys.org) -- Astronomers from The University of Texas at Austin and Wesleyan University have used the Hobby-Eberly Telescope at UT Austin’s McDonald Observatory to confirm that a Jupiter-size planet ...
May 31, 2012 |
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The transit of Venus
Many astronomers and members of the public in Britain will be getting up early on the morning of 6 June, so they can see the final Transit of Venus of the 21st century. The Transit, when Venus passes directly ...
Space & Earth / Space Exploration
May 29, 2012 |
4.7 / 5 (3) |
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Is a classical electrodynamics law incompatible with special relativity?
(Phys.org) -- The laws of classical electromagnetism that were developed in the 19th century are the same laws that scientists use today. They include Maxwell’s four equations along with the Lorentz la ...
May 24, 2012 |
4.7 / 5 (19) |
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A planetary system that never was teaches about those that may be
While Kepler and similar missions are turning up planets by the fist full, there’s long been many places that astronomers haven’t expected to find planetary systems. The main places include regions ...
May 23, 2012 |
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SpaceX readies new attempt of rocket launch to space lab (Update)
SpaceX on Monday readied a fresh bid to become the first private company to launch its own craft to the International Space Station after fixing an engine problem that grounded its earlier attempt.
Space & Earth / Space Exploration
May 21, 2012 |
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NASA Goddard delivers magnetometers for next mission to Mars
Magnetometers built by scientists and engineers at NASA Goddard Space Flight Center in Greenbelt, Md. for NASA's Mars Atmosphere And Volatile EvolutioN (MAVEN) mission have been delivered to the University ...
Space & Earth / Space Exploration
May 21, 2012 |
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SpaceX rocket launch aborted in last half-second (Update)
Engineers aborted the launch of a privately built spacecraft on a landmark mission to the International Space Station at the last second Saturday due to a rocket engine problem.
Space & Earth / Space Exploration
May 19, 2012 |
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An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
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List of search results for orbit determination
