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Launch&Orbit / Mogens Blanke Satellite Systems and Design DTU 20-31 August 2001 Launch and Orbits Mogens Blanke Automation mb@oersteddtudk

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Launch&Orbit / Mogens Blanke Sequence of events 11:39:52 Delta II raketten affyres. 11:40:25 Lydmuren gennembrydes. 11:40:38 Maksimum motorkraft 11:43:16 Hovedmotoren stoppes. 11:43:24 1. trin og 2. trin separeres. 11:43:29 2. trin startes. 11:50:51 2. trin stoppes. 12:31:14 2. trin genstartes 1. gang.

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Launch&Orbit / Mogens Blanke

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Kepler’s laws Kepler provided three laws for planetary motion, based on Brahe’s observations. 1. The orbit of a planet is an ellipse with the Sun located at one focus 2. The radius vector drawn from the Sun to a planet sweeps out equal areas in equal time 3. Planetary periods of revolution are proportional to mean distance to the Sun ^3/2

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Launch&Orbit / Mogens Blanke Newton’s results The laws of NewtonPhysical parameters

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Launch&Orbit / Mogens Blanke Two-body problem

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Launch&Orbit / Mogens Blanke

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Orbit radius and velocity

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Launch&Orbit / Mogens Blanke Potential and kinetic energy Energy Parameters

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The law of orbits: All planets move in elliptical orbits, with the sun at one focus.

The law of orbits: All planets move in elliptical orbits, with the sun at one focus.

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