PPT-An Analysis of Low Earth Orbit Launch Capabilities

George Mason University May 11 2012 Ashwini Narayan James Belt Colin Mullery Ayobami Bamgbade Content Introduction Background need problem statement Objectives and scope Technical . Interplanetary Mission Design. Spring . 2015. Kate . Davis. Launch Considerations. 1. One of the most required aspects of an interplanetary mission design.. Until we invent teleportation or master the control of an Einstein-Rosen bridge. Settler. What is this picture of ?. Learning Objectives. To know what a satellite is. To know some uses of artificial satellites. To understand the differences between polar and geostationary . orbits and where they are used. -Continuously falls towards the earth.. -Are launched to a position above the earths surface to avoid air resistance. . -Escape speed is . 11.2 . km/s for earth. . -Orbital velocity depends on orbital radius, the function of the satellite and the value of ‘g’ at its orbital radius.. Putting It All Together. ASEN . 6008. Interplanetary Mission Design. The Story So Far…. Lambert’s . Problem. Pork Chop Plots. Gravity . Flybys. Resonant Orbits. B-Plane Parameters. Example. Apply techniques to Galileo. Overview of the NEO Observation Program. Lindley Johnson. Planetary Science Division. NASA HQ. 21 June 2012. US component to International Spaceguard Survey effort. Has provided 99% of new detections of NEOs since 1998. Based on Functions. Passive Satellite – a communications satellite not equipped with electronic devices to retransmit communications. Such satellite acts only as a reflector of radio waves.. Active Satellite – a satellite equipped with electronic devices to receive, amplify, convert, and retransmit signals .  .  .  .  .  . Newton's Law of Gravitation. To find the velocity increment required for various missions, we must calculate trajectories and orbits. This is done using Newton's Law of Gravitation: . What Is an Orbit?. Johannes . Kepler. discovered (in . 1600s. ) that planets orbit in . ellipses, . not . circles.. Satellites (natural or . human-made. ) also orbit Earth in elliptical . pattern.. Elliptical orbits remain fixed in space and Earth spins under a fixed satellite . Unit 2 . Content . Introduction . Antenna . Look . Angels. The . Polar Mount Antenna . Limits . of . Visibility. Near . Geostationary Orbits . Earth . Eclipse of . Satellite. Sun . Transit Outage . Launching . Orbital Mechanics. Orbits are described by a set of parameters called….. orbital elements or . Keplerian. elements . The . Keplerian. element set consists of 6 parameters (plus a time stamp). Name them.. Class Contents. Satellite Parameters and Configurations . Satellite Orbits. Frequency Bands. Transmission Impairments. Satellite Network Configurations . Capacity Allocation – Frequency Division. FDM (Frequency Division Multiplexing). Earth, Moon, and Sun Gravity and Motion Isaac Newton was the first scientist to explain what keeps the Earth and Moon in orbit Force – a push or a pull There is a force acting between the Earth and the moon that keeps them in orbit Mars. Venus. Earth. Jupiter. Mercury. Saturn. Uranus. Neptune. Our Home Planet. Earth, our home planet, is the third planet from the Sun and the fifth largest planet in the Solar System. Earth is 150 million kilometres from the Sun.. Analysis & . The Orbit of Mars. Data Analytics Course 2015. Earth’s Rotation. Earth. Star or Planet. Counterclockwise spin when viewed from the north. How Do We Know The Earth Rotates?. W. E. N.