| Table of Contents | 5 |
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| List of Figures | 11 |
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| Introduction | 15 |
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| Author’s Preface | 17 |
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| Acknowledgments | 18 |
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| Foreword | 19 |
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| 1 Telepresence | 21 |
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| 1.1 On Location | 21 |
| 1.1.1 A Busy Realtime Night | 24 |
| 1.1.2 Realtime as Middle Ground | 25 |
| 1.1.3 Wake-up Calls | 26 |
| 1.1.4 Resolution | 29 |
| 1.2 The Link With Earth | 30 |
| 1.2.1 Spacecraft and the Deep Space Network | 30 |
| 1.2.2 Microwaves | 31 |
| 1.2.3 Antenna Gain | 33 |
| 1.2.4 Power in the Link | 35 |
| 1.2.5 All Things Considered | 35 |
| 1.2.6 Signal-to-Noise Ratio: SNR | 39 |
| 1.2.7 Amplification | 41 |
| 1.2.8 The HEMT Low-Noise Amplifier | 44 |
| 1.2.9 The Maser Low-Noise Amplifier | 44 |
| 1.2.10 LNA Bandwidth | 46 |
| 1.2.11 Microwave Signals To Go | 46 |
| 1.2.12 The Closed-Loop Receiver | 46 |
| 1.2.13 The Open-Loop Receiver | 48 |
| 1.2.14 Transporting Information | 48 |
| 1.2.15 Modulation Schemes | 49 |
| 1.2.16 Power in the Data | 50 |
| 1.2.17 Error Detection and Correction | 51 |
| 1.2.18 Telemetry in Lock | 54 |
| 1.2.19 Data Compression | 55 |
| 1.2.20 Pushing the Shannon Limit | 56 |
| 1.2.21 Data Structure | 57 |
| 1.2.22 Channelized Engineering data and Science data | 58 |
| 1.2.23 CCSDS | 60 |
| 1.2.24 Remote Control | 61 |
| 1.2.25 Beacons in Space | 63 |
| 1.3 More than Telepresence | 65 |
| Notes | 65 |
| References | 67 |
| 2 Navigating the Depths | 69 |
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| 2.1 Martian Miscalculation | 69 |
| 2.2 Choice of Flight Path | 71 |
| 2.3 Orbit Determination and Guidance | 73 |
| 2.3.1 Kepler | Newton and his Principia73 |
| 2.3.2 Models and Observables | 75 |
| 2.3.3 Optical Navigation | 76 |
| 2.3.4 Autonomous Navigation | 77 |
| 2.4 Making Measurements | 78 |
| 2.4.1 Coordinate Systems | 79 |
| 2.4.2 Measuring the Doppler Shift | 82 |
| 2.4.3 One, Two, Three Way | 84 |
| 2.4.4 Measuring Range | 86 |
| 2.4.5 VLBI — Very Long Baseline Interferometry | 87 |
| 2.4.6 Putting it all together | 90 |
| 2.5 Correction and Trim Maneuvers | 91 |
| 2.5.1 The Target Plane | 92 |
| 2.5.2 Maneuver Execution | 95 |
| 2.6 Gravity Assist | 98 |
| 2.6.1 A Grand Tour | 99 |
| 2.6.2 How it works | 100 |
| 2.7 A Familiar Connection Severed | 101 |
| Notes | 102 |
| References | 104 |
| 3 Spacecraft Attitude Control | 106 |
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| 3.1 A Distant Rocking | 106 |
| 3.2 The Attitude Control System | 108 |
| 3.3 Intersecting Disciplines | 112 |
| 3.4 Stability | 115 |
| 3.4.1 Going for a Spin | 115 |
| 3.4.2 Three-axis control | 118 |
| 3.4.3 Hybrids | 119 |
| 3.5 Attitude Control Peripherals | 120 |
| 3.5.1 AACS Input Devices | 120 |
| 3.5.2 AACS Output Devices | 125 |
| 3.6 Scientific Experiments with AACS | 133 |
| 3.7 AACS Faults and Protection | 135 |
| Notes | 136 |
| References | 137 |
| 4 Propulsion | 138 |
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| 4.1 Liftoff | 138 |
| 4.2 Newton’s Third Law | 140 |
| 4.2.1 Water as Reaction Mass | 140 |
| 4.2.2 Rocket Science | 141 |
| 4.2.3 A Solid Rocket Example | 142 |
| 4.2.4 Making Comparisons | 143 |
| 4.3 Interplanetary Travel Becomes Possible | 144 |
| 4.3.1 Nozzles | 145 |
| 4.4 Propulsion System Designs | 146 |
| 4.4.1 Solid Rocket Motors | 146 |
| 4.4.2 Liquid Monopropellant Systems | 148 |
| 4.4.3 Liquid Bipropellant Systems | 151 |
| 4.4.4 Tanks in Free-f
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