Andrew Bourgeois Aaron Minard.  Data transmitted at the speed of light in a straight line.

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Presentation transcript:

Andrew Bourgeois Aaron Minard

 Data transmitted at the speed of light in a straight line.  Satellites used to avoid curve of the earth  If not geostationary, moves across the sky.

 Calculates the tracks of earth orbiting satellites.  Calculations are based on the SGP4/SDP4 model, highly accurate.  Simplified General Perturbations Satellite Orbit Model 4 (NASA/NORAD)

 Developed by Cal Poly and Stanford University  10cm 3 and has a mass of 1kg  Powered by photovoltaic cells and rechargeable batteries  Usually launched piggyback to commercial satellites  Costs $30,000 to $50,000 to build and the same amount to ride piggybacked on a commercial satellite.

 Track a low orbit satellite from horizon to horizon  Move a 3 meter satellite dish  Interface to SatPC32

 Gears and motor  Motor controllers to interface with SatPC32  Digital Encoders to control position of the dish  Use/Modify existing designs for elevation and azimuth control

COMING SOON  Force due to wind  Inertial Force  Gear calculations

Horse-Power degGear Ratio

Sensor Gear Worm Worm Gear Mounting Bracket

Mounted Roller Bearing Worm Sensor Gear Worm Gear

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