2008-11-21 Mission Analysis Geometric Visibility and Manoeuvre Calculations Tommy Yuen.

Slides:

Advertisements

Similar presentations

Orbiting Satellites and Free-Fall Elevators Paul Robinson San Mateo High School

Advertisements

Physics 100 Chapt 10 Newtons Universal Law of Gravitation.

Introduction to Astronautics Sissejuhatus kosmonautikasse Vladislav Pustõnski Tallinn University of Technology.

Mission Analysis STK 8.0 Analysis and Impact Accuracy Stephen Lee.

STUDIES ON THE UTILIZATION OF SOLAR SAIL IN LUNAR-TRANSFER TRAJECTORY Zhao Yuhui 1,2, Liu Lin 1,2 1. Astronomy Department, Nanjing University, Nanjing,

Contexts > Rockets > Rockets and space Saturn V Pronounced ‘Saturn five’. NASA, USA. Saturn rockets launched Apollo missions to Moon, 1968 to Apollo.

15th AAS/AIAA Space Flight Mechanics Meeting, Copper Mountain, Colorado Low Energy Interplanetary Transfers Using the Halo Orbit Hopping Method with STK/Astrogator.

Analysis of Rocket Propulsion

Escape Speed Escape speed: The minimum speed required for a projectile to escape the gravitational effects of an object. For the purist: The escape speed.

M. R. Tetlow and C.J. Doolan School on Mechanical Engineering

Mission Design Requirements First priority is to deliver takeoff mass to aircraft team. Deliver 5kg item to ISS 24 hour launch lead time Vehicle must be.

Tutorial 12 Linear Momentum Angular Momentum Zhengjian, XU Nov 26 th, 2008.

Mission To Mars In Kerbal Space Program, Where distances are 1/9 real world values.

1 Air Launch System Project Proposal February 11, 2008 Dan Poniatowski (Team Lead) Matt Campbell Dan Cipera Pierre Dumas Boris Kaganovich Jason LaDoucer.

Copyright © 2009 Pearson Education, Inc. Lecture 7 Gravitation 1.

Spacecraft Propulsion Dr Andrew Ketsdever Lesson 13 MAE 5595.

Escape Velocity Must travel about 8 km/s or 18,000 mi/hr Trouble is that at this speed the atmosphere heats up objects and burns them up Image from.

Chapter 6: Maneuvering in Space By: Antonio Batiste.

6.3 Rendezvous Christopher James 3/30/2007 Physics 280 Christopher James 3/30/2007 Physics 280.

2006: Assoc. Prof. R. J. Reeves Gravitation 3.1 P113 Gravitation: Lecture 3 Escape speed from orbit Planets and satellites: Keplers Laws Orbital energy.

Gravitational Potential energy Mr. Burns

Launch System Launch Vehicle Launch Complex Orbit Insertion Orbit Maneuvers.

PRE-REQUISITE: ENGINEERING MECHANICS/STATIC ERT250 DYNAMICS.

Samara State Aerospace University (SSAU) Samara 2015 SELECTION OF DESIGN PARAMETERS AND OPTIMIZATION TRAJECTORY OF MOTION OF ELECTRIC PROPULSION SPACECRAFT.

Uncontrolled copy not subject to amendment Rocketry Revision 1.00.

Newton’s Law of Gravitation. Newton concluded that gravity was a force that acts through even great distances Newton did calculations on the a r of the.

Gravity ISCI More Free Fall Free Fall Vertical and Horizontal Components of Free Fall.

Orbital Mechanics & Other Fun Stuff Part I Basic Orbital Mechanics Tom Rudman Thursday Morning Space Odyssey Crew.

Precision Control Autonomous Systems for NEO Mission Design Karl Williams Matthew Zimmer.

CONCEPTUAL PHYSICS Satellite Motion.

Planetary Dynamics § 13.4–13.8. Closed Orbits U g + K tr = constant < 0 The closer the satellite is to the main body, the faster it moves Objects do not.

Gravitation Part II One of the very first telescopic observations ever was Galileo’s discovery of moons orbiting Jupiter. Here two moons are visible,

Team PM8 Eventus Slide 1. Commercial spaceflight has seen increased activity as more privately owned companies invest in the venture. To avoid a catastrophic.

Gravitation Chapter Opener. Caption: The astronauts in the upper left of this photo are working on the Space Shuttle. As they orbit the Earth—at a rather.

JR/2008 Conservation of Energy Conservation of Energy:- the principle states that:- ENERGY CANNOT BE CREATED OR DESTROYED This can be put to good use in.

Hohmann Transfers and Plane Changes Daniel Rowe 1.

Newton believed that every object ___attracts_____ every other object. The force of the attraction depends on the __mass___ and _distance__ of the two.

REVISION What force keeps the satellite orbiting the Earth.? (1)

Chapter 5 Circular Motion; Gravitation. 1. Use Newton's second law of motion, the universal law of gravitation, and the concept of centripetal acceleration.

ICTCM Using Satellite Orbits and Space Travel with Game-Quality Simulations in Math and Physics Classes from High School through College Frank Wattenberg.

ARO309 - Astronautics and Spacecraft Design

1 SATELLITESSATELLITES 2 Newton’s Law of Gravitation M1M1 M2M2 r F F.

MAE 4262: ROCKETS AND MISSION ANALYSIS

8/8/2011 Physics 111 Practice Problem Statements 13 Universal Gravitation SJ 8th Ed.: Chap 13.1 – 13.6 Overview - Gravitation Newton’s Law of Gravitation.

Problem A shuttle is to rendezvous with a space station which is in a circular orbit at an altitude of 250 mi above the surface of the earth. The.

1) What is a satellite? 2) What does orbit mean? 3) What does Period mean? 4) What does angular velocity mean? 5) If the angular velocity is to remain.

Proportionality between the velocity V and radius r

8.11 Satellites Page Natural Satellite The Moon.

Presented by: Jamie Quinnell Jean Moiso Gus Mashensic.

Chapter8: Conservation of Energy 8-7 Gravitational Potential Energy and Escape Velocity 8-8 Power HW6: Chapter 9: Pb. 10, Pb. 25, Pb. 35, Pb. 50, Pb. 56,

Rockets and Satellites. How Do Rockets Lift Off? Rockets and space shuttles lift into space using Newton’s third law of motion.

Satellite Safety and Circularizing Orbits: A Study in Simplifying Models Anthony Ko.

Applications of our understanding of ‘G’ Fields Calculate the gravitational potential at the surface of the Earth (Data on data sheet). Answer = Now state.

Circular Motion AP PHYSICS 2. Uniform Circular Motion.

Newton’s thought experiment: orbital velocity. Surface escape velocities Planet V escape, ft/sec Mercury13,600 Venus33,600 Earth36,700 Moon7,800 Mars16,700.

Escape Velocity  In order to get to the moon, you have to escape the gravity of the earth. To get past Pluto you have to escape the gravity of the sun.

AGI’s EAP Curriculum Orbital Mechanics Lesson 3 - Orbital Transfers.

CRCT Preparation.

Weight and Mass How much you are being pulled down vs. how much matter you have in your body.

4.3 – Newton’s 3rd Law.

Newton’s Law of Universal Gravitation & Kepler’s Laws

[Andrew Damon] [Mission Ops]

AGI’s EAP Curriculum Orbital Mechanics Lesson 3 - Orbital Transfers

4.3 – Newton’s 3rd Law.

Newton’s Law of Universal Gravitation & Kepler’s Laws

Lunar Descent Trajectory

Launching Satellites and Escape Energy (this is rocket science baby!)

Aim: How do we explain energy gravitational potential energy?

Launching Satellites and Escape Energy (this is rocket science baby!)

Presentation transcript:

Mission Analysis Geometric Visibility and Manoeuvre Calculations Tommy Yuen

Presentation Outline Requirements How Are We Getting There? Geometric Visibility Theoretical Hohmann Transfer Verifying STK Results Conclusion Future Work Tommy Yuen

Requirements The Penetrator shall: Penetrate a depth of 2 ± 0.5 m Have sufficient link time to be able to transmit segments of data in packets periodically Be able to communicate with the relay satellite of Selene I Tommy Yuen

How Are We Getting There? Selene I – Satellite information Tommy Yuen Main Orbiter (SELENE I) Circular Orbit Orbit100[km] Inclination90[°] Relay Satellite (OKINA) Elliptical Orbit Orbit100 x 2400[km] Inclination90[°] Simplifications: The apoapsis is at -90° lattitude Selene I Okina

Geometric Visibility Ideal case geometric link time: Approximately 7000 s Ideal case regolith transmission thickness: Approximately 11.8 m Worst case geometric link time: Approximately 80 s Simplifications: 90° latitude Only communicates with Okina Tommy Yuen 0.8° 80° 2.5 m 0.45 m 80° Worst and Ideal Case Comparison Ideal Case

Geometric Visibility Tommy Yuen

Theoretical Hohmann Transfer Tommy Yuen Circular Orbit Elliptical Orbit Change in Velocity Required RpRp RaRa

Theoretical Hohmann Transfer Tommy Yuen

Verifying STK Results Conservation of Energy: Tsiolkovsky's Rocket Equation: Simplifications: Tangential Velocity is Cancelled Prior to Free Fall Booster Engines Apply Impulsive Burns and have an I sp of 285 s The Mass of the Penetrator is 10 kg Tommy Yuen

Verifying STK Results Scenario 1 – A vertical burn was used to slow the penetrator down to 0 m/s at the desired altitude of about 28.1 km – Amount of fuel required is about 11.2 kg Scenario 2 – A vertical burn was used to slow the penetrator down to 300 m/s at the surface of the moon – Amount of fuel required is about 9.7 kg Tommy Yuen

Conclusion Geometric link time is about 80 to 7000 s Hohmann transfer is not a plausible option STK results agree with back of the envelope calculations Tommy Yuen

Future Work Refine communication visibility simulations for different impact locations and craters Determine post impact mission time line Tommy Yuen

Questions?