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 . p44 picture of [[www.centauridreams.org/?p=13500 | ATK space systems 20 meter solar sail ]]. Conflated with solar cell?
  . no way to move power out of cells that thin; the cells make perhaps 200 amps per square meter at about a volt. IR drop would be awful for a large array with gossamer-thin conductors.		  . p44 picture of [[http://www.centauri-dreams.org/?p=13500 | ATK space systems 20 meter solar sail ]]. Conflated with solar cell?
  . no way to move power out of cells that thin; the cells make perhaps 200 amps per square meter at about a volt. IR drop would be awful for a large array with gossamer-thin conductors.  Monocrystalline photovoltaic cells do not fold the way these aluminized mylar films do.
  . [[attachment=scitech_solarsails_solar-sails-2.jpg|{{attachment=scitech_solarsails_solar-sails-2.jpg||width=50}}]]

GEO-SBSP2

2013 Conference NOTES:

SSP Assembly Challenges      Gordon Woodcock

  • 4000 MW solar cell
  • 2000 MWe to grid(?)
  • High Temp Superconductors ??? 77K

  • 600 launches, 4e7 kg? 15km2?

  • 5.8 GHz

Introduction to Space Solar Power for the Global Electric Power Utility Market

  • WiSEE SSP Workshop
  • November 8, 2013
  • Baltimore, MD
  • Darel Preble
  • President, Space Solar Power Institute www.solarsat.org
  • Chair, Space Solar Power Workshop www.sspi.gatech.edu

  • p24 Sidelobe Graph - 0.01mW/cm2 peak at 440km radius

  • Predicted ground-level microwave power density for a full-power GEO SPS as a function of distance -Credit: J. M. Osepchuk, IEEE Microwave, “How Safe Are Microwaves and Solar Power from Space”, IEEE Microwave magazine, vol. 3, issue 4. page 58-64, Dec. 2002.
  • p34 Communication satellites are now a $250+ Billion industry per year.
  • p42 GSO launches and forecast

  • p44 picture of ATK space systems 20 meter solar sail. Conflated with solar cell?

    • no way to move power out of cells that thin; the cells make perhaps 200 amps per square meter at about a volt. IR drop would be awful for a large array with gossamer-thin conductors. Monocrystalline photovoltaic cells do not fold the way these aluminized mylar films do.

    • attachment=scitech_solarsails_solar-sails-2.jpg

Mission design of WPT Space Demonstration Experiment using Small Scientific Satellite toward SPS     Tanaka

  • 5.729 GHz 370km orbit 200kg 2kW 1.9m antenna
  • ground 16μW/m2（MAX）Beam width on the ground φ ～30km

SSP: Hearts and Minds     Brent Sherwood

  • p8 Geopolitics: Urban Geography from GEO city longitude

Contreras LEO 1620

GEOSBSP2 (last edited 2015-01-16 04:54:13 by KeithLofstrom)