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Observations. Sat05_71, 2007-10-23.

Observations. Sat05_71.ppt, 2007-10-23. Directions : satellite visible with stars as background. Direction to radio-source (VLBI) Directions and distances : if satellite carries reflectors. Stellar-triangulation. Sat05_71.ppt. Global network. Sat05_71.ppt.

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Observations. Sat05_71, 2007-10-23.

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  1. Observations. Sat05_71.ppt, 2007-10-23. • Directions: • satellite visible with stars as background. • Direction to radio-source (VLBI) • Directions and distances: if satellite carries reflectors

  2. Stellar-triangulation. Sat05_71.ppt

  3. Global network. Sat05_71.ppt

  4. West-European Network.sat05_71.ppt

  5. North-American Network: First results for Greenland

  6. Distances. Sat05_71.ppt, 2007-10-23. Reflected light: Lasers – 2-ways. SLR= Satellite Laser Ranging. http://ilrs.gsfc.nasa.gov/ http://www.csr.utexas.edu/mlrs/ Satellite emits signal: 1 way or two ways. http://www.gfz-potsdam.de/pb1/op/prare/prare.html

  7. Laser http://msl.jpl.nasa.gov/QuickLooks/lageosQL.html

  8. LAGEOS

  9. Earth-Moon system

  10. Distance measurements. Sat05_71.ppt, 2007-10-23. Signal: Impuls: Phase: Δλ λ

  11. Integer ambiguity. Sat05_71.ppt, 2007-10-23. N may be determined using • Signal with several frequencies • Several observations

  12. Distance-differences. Doppler. Sat05_71.ppt, 2007-10-23. .Observations:

  13. Satellite Altimetry. Sat05_71.ppt, 2007-10-23. Geos-3, GSFO SEASAT Topex/Poseidon, Jason, ERS1 + 2, Envisat and CRYOSAT Satellite Water – Ice - Plains

  14. Satellite-to-Satellite Tracking. Sat05_71.ppt, 2007-10-23. CHAMP, from GPS to satellite GRACE. from GPS to two satellites and ranging between the satellites GOCE, from GPS to the satellite .

  15. Interferometry. Sat05_71.ppt, 2007-10-23. http://www.jb.man.ac.uk/

  16. VLBI. Sat05_71.ppt, 2007-10-23. http://lupus.gsfc.nasa.gov/brochure/bintro.html .

  17. Results. Sat05_71.ppt, 2007-10-23. .

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