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anonymous

J-Track 3D Satellite Tracking - NASA Science - 1 views

science.nasa.gov/...JTrack3D.html

J-Track satellite tracking maping track map satellites

shared by anonymous on 19 Dec 11 - Cached
  • anonymous on 19 Dec 11
     
    J-Track 3D Satellite Tracking We hope you enjoy J-Track 3-D.  It should appear in its own window and begin loading a database of hundreds of satellites. What you will see is a plot in 3-dimensions showing the position of these satellites. If you are unable to view then a JAVA updagrade could be necessary. Be sure to try the "Satellite" pull-down menu to choose which satellite you wish to view. How to interact with JTrack-3D; it has its own menu items for View, Satellite, and Options:
José Gonçalves

GPS satellites suggest Earth is heavy with dark matter - physics-math - 02 January 2014... - 1 views

www.newscientist.com/...is-heavy-with-dark-matter.html

Physics earth gps space dark matter satellites

shared by José Gonçalves on 02 Jan 14 - No Cached
  • José Gonçalves on 02 Jan 14
     
    GPS is handy for finding a route, but it might be able to solve fundamental questions in physics too. An analysis of GPS satellite orbits hints that Earth is heavier than thought, perhaps due to a halo of dark matter.
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