GPS IIIA Progress Update

1
GPS IIIAProgress Update

• Lt Col Don Frew
• GPS III Commander
• Mr. Moe Alvarez
• GPS III Deputy PM

2
Outline

• Kudos
• GPS Space Vehicle Evolution
• Program Highlights
• Team
• Program Schedule
• PDR
• Design Features
• Technological Maturity
• Summary

3
Kudos

• GPS IIIA Integrated Product Team
• Includes members from the GPS III Squadron,
  Aerospace, SEI, SETA, Contracting, Program
  Control, Hosted Payload, and Systems Engineering
• Winners!!!!!
• 2008 SMC Team of the Year
• 2008 SMC nominee for the Chief of Staff Team
  Excellence Award

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GPS Space Vehicle Evolution
IIR-M
IIIA
IIIC
Increasing System CapabilitiesIncreasing
Defense/Civil Benefit
Block IIA/IIR
Block IIR-M/IIF
Block IIIA/IIIB/IIIC

• IIIA
• Increased accuracy (0.63-m spec)
• Increased EC power (-151.5 dBW)
• IIIB
• Assured availability
• Real-time communications
• IIIC
• Navigation integrity
• High-power spot beam

• IIR-M IIA/IIR capabilities plus
• 2nd civil signal on L2 (L2C)
• Earth coverage M-code on L1 L2
• L5 Demonstration
• Flex power upgrade to defeat low-level enemy
  jamming
• IIF IIR-M capability plus
• 3rd civil signal on L5

• Basic GPS provides initial navigation
  capabilities
• Std service (16-24-m SEP)
• Single frequency (L1)
• C/A code navigation
• Precise service (16-m SEP)
• Two frequencies (L1 L2)
• P-code navigation

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GPS IIIA
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GPS IIIA Program Highlights

• Stable requirements baseline
• Experienced contractor/subcontractor team
• Extensive trade studies completed to settle on
  optimum GPS IIIA system design with low risk
• Capability insertion with minimal risk built into
  GPS IIIA system design
• Extensive risk reduction focused on Navigation
  Payload
• Established sound foundation for cost, schedule,
  performance management

GPS IIIA focused on low risk, high confidence
program execution
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GPS IIIA Team
Setting the benchmark for mission success
Providing the vision for future positioning,
navigation, and timing information
Provider of all received GPS signals spanning
almost three decades
100 mission success providing UHF crosslinks
since 1997
Star Supplier small business partner addressing
Space Vehicle - OCX integration
World-class Industry Teammates with Deepest
Experience Base Over 19 years of Partnership
Demonstrating Mission Success
8
GPS IIIA Program Master Schedule
17 Apr
9
PDR Accomplishments

• PDR execution remains on schedule
• 70 of 71 PDRs successfully conducted to date
• Authorization to proceed to CDR granted on all
  PDRs
• Post-PDR closure efforts continue to progress
• Post-PDR actions being tracked to closure
• Spec and data package updates being tracked to
  closure
• GPS IIIA SV PDR preparations in full swing
• SV PDR Agenda developed
• Data package delivered at PDR-30
• Team-wide kickoff held for chart package
  development

On track for May 09 Space Vehicle PDR
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Cost / Schedule/Technical Trades

• Implemented robust Risk Opportunity Management
  process
• Multiple trades performed
• Managers expected to bring at least one
  Opportunity to the board
• Trades focused on cost schedule examples
• Changing the pyrotechnic devices for solar array
  deployment
• Propulsion tank qualification
• Tailored compliance requirements when overly
  restrictive or unclear
• Further risk reduction is expected as additional
  trades are completed and coordinated

Realizing opportunities and reducing risk through
rigorous trade process
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Design Review Plan
ATP
MS-C
Build approval
ATP12mo
ATP29mo

• Technical Baseline Review
• SV technical baseline under CM
• Operations Concept
• Requirements
• Architecture
• Initial Design
• Program Risks
• Technical Performance Measures

• GPS IIIA SV PDR
• SV baseline updated
• Critical design initiated
• KDP-C prep initiated

• GPS IIIA SV CDR
• SV baseline established
• Production planning initiated
• Build approval prep initiated

Space Vehicle CDR
Space Vehicle PDR
Element CDRs
Element PDRs
Subsystem CDRs
Subsystem PDRs
Assembly CDRs
Assembly PDRs

• Bottoms Up PDR Flow (assembly to SV)
  established by MIL-STD-1521B tailored for GPS
  IIIA

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GPS IIIA SV Design Features

• Use of proven components (all TRL 6) for
  low-risk high-confidence design
• Designed for IIIC, but maintaining low risk for
  IIIA
• Adopted standard A2100 Bus (AXS-size)
• Straightforward GEO-to-MEO conversion
• Accommodates all increments without relocation of
  assemblies
• Same Bus subsystems (ACS, TTC, Propulsion,
  Structure, Thermal) for IIIA to IIIC
• Minor increases in capacity
• High use of heritage navigation payload designs
• Designed to minimize Electromagnetic Interference
  (Passive Inter-Modulation) issues
• Navigation Timekeeping system used for IIIA to
  IIIC, no redesign
• Thin Comm Unit accommodates upgrades to Full
  Comm within the Unit
• Minimizes SV redesign for IIIB (IIIB Full Comm
  maintained identical for IIIC)
• Nuclear Detection System fully accommodated

Use proven designs to provide a low-risk,
high-confidence IIIA acquisition
13
GPS IIIA Technology Maturity
GPS IIIA SDR

• Maximum use of high-Technology Readiness Level
  (TRL) components for low schedule risk and
  Constellation sustainment
• SV architecture chosen based on use of high-TRL
  heritage components
• Disciplined Technology Readiness Assessment
  process conducted
• Assessed 140 technology elements for software and
  hardware TRLs
• Govt-funded risk-reduction activities leveraged
  to increase Nav Payload component TRL

89 TRL gt7
All Technology Maturity gtTRL 6 for GPS IIIA
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Summary

• Executing a highly effective one-team approach
• Program requirements tech baseline solid,
  stable
• Strong emphasis on system engineering
• Actively mitigating risk identifying
  opportunities
• 70 of 71 PDR events completed
• Driving closure on ICDs Specs
• Executing program as planned - on schedule and
  within budget

GPS IIIA maintaining low risk, high confidence
program