Table of Contents

List of Authors ix

Preface xvii

1. The Space Mission Analysis and Design Process 1

1.1 Introduction and Overview 1

1.2 The Space Mission Life Cycle 7

1.3 Step 1 : DĂ©finition of Mission Objectives 12

1.4 Step 2: Preliminary Estimate of Mission Needs, Requirements, and Constraints IS

2. Mission Characterization 19

2.1 Step 3: Identifying Alternative Mission Concepts 21

2.2 Step 4: Identifying Alternative Mission Architectures 32

2.3 Step 5: Identifying System Drivers 37

2.4 Step 6: Characterizing the Mission Architecture 38

3. Mission Evaluation 47

3.1 Step 7: Identification of Critical Requirements 48

3.2 Mission Analysis 49

3.3 Step 8: Mission Utility 59"

3.4 Step 9: Mission Concept Selection 69

4. Requirements Definition 73

4.1 Role of Requirements in System Development 74

4.2 Requirements Analysis and Performance Budgeting 80

4.3 Requirements Documentation and Specifications 90

4.4 Summary: The Steps to a Requirements Baseline 93

5. Space Mission Geometry 95

5.1 Introduction to Geometry on the Celestial Sphere 98

5.2 Earth Geometry Viewed from Space 110

5.3 Apparent Motion of Satellites for an Observer on the Earth 117

5.4 Development of Mapping and Pointing Budgets 123

6. Introduction to Astrodynamics 131

6.1 Keplerian Orbits 132

6.2 Orbit Perturbations 141

6.3 Orbit Maneuvering 146

6.4 Launch Windows 153

6.5 Orbit Maintenance 155

7. Orbit and Constellation Design 159

7.1 The Orbit Design Process 160

7.2 Earth Coverage 163

7.3 TheAVBudget 176

7.4 Selecting Orbits for Earth-Referenced Spacecraft 179 15 Selecting Transfer, Parking, and Space-Referenced Orbits 183

7.6 Constellation Design 188

8. The Space Environment and Survivability 203

8.1 The Space Environment 203

8.2 Hardness and Survivability Requirements 221

9. Space Payload Design and Sizing 241 9.1 Payload Design and Sizing Process 245 93. Mission Requirements and Subject Trades 249 93 Background 255

9.4 Observation Payload Design 266

9.5 Observation Payload Sizing 278

9.6 Examples 291

10. Spacecraft Design and Sizing 301

10.1 Requirements, Constraints, and the Design Process 304

10.2 Spacecraft Configuration 308

10.3 Design Budgets 314

10.4 Designing the Spacecraft Bus 318

10.5 Integrating the Spacecraft Design 336

10.6 Examples 339

1. Spacecraft Subsystems 353

11.1 Attitude Determination and Control 354

11.2 Telemetry, Tracking, and Command 381

11.3 Command and Data Handling 395

11.4 Power 407

11.5 Thermal 428

11.6 Structures and Mechanisms 459

11.7 Guidance and Navigation 497

Space Manufacture and Test 519

12.1 Engineering Data 521

122 Manufacture of High-Reliability Hardware 521

12.3 Inspection and Quality Assurance 523

12.4 The Qualification Program 524

12.5 Spacecraft Qualification Test Flow 529

12.6 Launch Site Operations 530

13. Communications Architecture 533

13.1 Communications Architecture 534

13.2 Data Rates 543

13.3 Link Design 550

13.4 Sizing the Communications Payload 570 13 J Special Topics 575

14. Mission Operations 587

14.1 Developing a Mission Operations Flan 590

14.2 Overview of Space Mission Operations Functions 600 143 Estimating the Size and Cost of Mission Operations 611 14.4 Automating Spacecraft and Ground Operations Functions 616

15. Ground System Design and Sizing 621

15.1 - The Ground System Design Process 623

15.2 A Ground System's Basic Elements 624

15.3 The TVpical Ground System 629

15.4 Alternatives to Building a Dedicated System 636

15.5 Key Design Considerations 642

16. Spacecraft Computer Systems 645

16.1 Computer System Specification 649

16.2 Computer Resource Estimation 660 163 FireSat Example 673

17. Space Propulsion Systems 685

17.1 Propulsion Subsystem Selection and Sizing 687

17.2 Basics of Rocket Propulsion 688

17.3 Types of Rockets 691

17.4 Component Selection and Sizing 708

17.5 Staging 716

18. Launch Systems 719

18.1 Basic Launch Vehicle Considerations 720

18.2 Launch System Selection Process 723 183 Determining the Spacecraft Design

Envelope and Environments 735

19. Space Manufacturing and Reliability 745

19.1 Designing Space Systems for Manufacturability 745

19.2 Reliability for Space Mission Planning 765

20. Cost Modeling 783

20.1 Introduction to Cost Analysis 784

20.2 The Parametric Cost Estimation Process 791

20.3 Cost Estimating Relationships 795

20.4 Other Topics 804

20.5 FireSat Example 811

viii

Table of Contents

21. Limits on Mission Design 821

21.1 Law and Policy Considerations 821

21.2 Orbital Debris—A Space Hazard 840

22. Design of Low-Cost Spacecraft 853

22.1 Designing Low-Cost Space Systems 858

22.2 Small Space Systems Capabilities and Applications 863

22.3 Applying Miniature Satellite Technology to FireSat 869

22.4 Scaling from Large to Small Systems 871

22.5 Economics of Low-Cost Space Systems 873

22.6 Annotated Bibliography on Low-Cost Space Systems 881

23. Applying the Space Mission Analysis and Design 883

23.1 Applying SMAD to Later Mission Phases 884

23.2 Lessons Learned from Existing Space Programs 888

23.3 Future Trends 889

0 0

Post a comment