1. DOCTOR:
Developing On-Orbit Servicing Concepts,
Technology Options, and Roadmap
Final Report
International Space University
Summer Session Program 2007
12. _________________________________ Index of Tables
Table 4-1: Cost Model for OOS Delivered by a Satellite Manufacturer ..................................16
Table 6-1: Technologies that may enable OOS in the Mid-Term ............................................28
Table 6-2: Robotic OOS platforms available in the Near-Term...............................................28
Table 7-1: Summary of Systems Trades...................................................................................35
Table 7-2: Mass Distribution of the Servicer............................................................................38
Table 7-3: ORU Lifetimes ........................................................................................................40
Table 7-4: Ion engine performance...........................................................................................45
Table 7-5: ODORU Power Budget...........................................................................................46
Table 7-6: Power Consumption of Subsystems........................................................................46
Table 7-7: Solar Panel efficiency .............................................................................................46
Table 7-8: Trade-off of Autonomous vs. Teleoperated Operations..........................................48
Table7-9: Requirement of Servicer System (ITU 2007; SLBC 2007) .....................................53
Table7-10: Frequency bandwidth and antenna type .................................................................54
Table7-11: Result of link budget calculation............................................................................54
Table 7-12: Estimated OOS Annual Market Value ..................................................................55
Table 7-13: Trade-off Analysis for ORU service mission prices .............................................57
Table 7-14: ORU-like failures in GEO (Sullivan 2005)...........................................................57
Table 7-15: ORU-replacement market (Sullivan 2005)............................................................58
Table 7-16: ORU-Replacement projected annual revenues......................................................59
Table 7-17: Project Cost and Revenue until Breakeven ...........................................................60
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