ONE SYSTEM, GLOBALLY.

Iridium Satellite

Dannie StampChief Officer of Operations

August 2, 2005

ONE SYSTEM, GLOBALLY.

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Historical Timeline

1991 1992 1993 1994 1995 1996 1997 1998 1999

System Telephony Engineering

Satellite Requirements Design

Launch Vehicle Design

Deployment & Launch

PROGRAM FUNDINGSatellite & LV R&D

Qualification June 97

Satellite Mfg.

First Satellite Jan 97

Nov 98 FOC

Ground System Design

1991 1992 1993 1994 1995 1996 1997 1998 1999

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System Status Summary• System Acquired from Bankruptcy by

Iridium Satellite LLC 12/2000– Committed Multinational Investment

Partnership

• Anchor Customer: U.S. Department of Defense

• Commercial Service Re-introduced 03/2001– Maintainable Cost Structure

• Vertical Market Distribution Strategy for Solution-Based Voice, Messaging and Data Services

• Subcontract with Boeing for Satellite Operations and Maintenance

• 2014 Constellation Lifespan Projected– 66 Operational Satellites– 12 Spare Satellites

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Commercial StatusConstellation and Gateway

• One Commercial Gateway Provides Global Connectivity– Tempe, Arizona

• DoD Gateway in Hawaii Supports US Government Traffic

• Satellite Constellation– 66 Fully Operational Satellites– 12 In-Orbit Spares– Constellation Life to 2013/2014

• Satellite Operations– Main Facility in Leesburg, VA– Back-up Facility in Chandler, AZ

• All Gateways Support Voice and Data Services– Dial-up– Direct Internet Access– Short Message Service– Short Burst Messaging– Paging– RUDICS

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AeroMaritimeGovernment / Security

Military

Relief Fishing

Oil/Gas

aero

Counterinsurgency / Interdiction

Boating

Shipping

Forestry/Land Mgmt

Remote Industry

Mining

General

Private/Corporate

Commercial

Aeronautical

Primary Customer Segments

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Marketing & Distribution

• Iridium Sells its Services Through a Network of World Leaders in Satellite Telecommunications

• These Partners Offer Value-Added Products and Services that are Proven Across the Mobile Communications Industry

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Present Constellation Configuration66

Ope

ratio

nal S

atel

lites

12 S

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Sat

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Dri

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Pro

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s

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Multiple Launch Vehicles UsedDELTA IIDELTA II PROTONPROTON

LONG MARCH 2CLONG MARCH 2C EUROCKOTEUROCKOT

12 launches12 launches5 SVs / LV5 SVs / LV

3 launches3 launches7 SVs / LV7 SVs / LV

6 launches6 launches2 SVs / LV2 SVs / LV

1 launch1 launch2 SVs / LV2 SVs / LV

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Iridium Satellite Constellation

•Each Satellite Footprint is Approximately 2800 Miles in Diameter

•All Satellite Footprints Overlap

•Each Satellite has 48 Spot Beams

•Size of Each Spot Beam is Approximately 250 Miles in Diameter

•All Spot Beams on a Satellite Overlap

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Solar Array Panels (2)

Battery &Radiator

Ka-Band Cross-Link Antenna (4)Ka-Band Feeder

Link Antenna (4)

L-BandMMA (3)

Payload Electronics

Dry Mass………………..1159 lbsWet Mass………………..1412 lbsInstant. Peak Power…...>4000 WAvg. Power Load…………620 WVehicle Length……………160 inVehicle “Wingspan”..........330 in

• Seven Power PC Processors• Four Gimbaled K-Band Feederlinks• Four K-Band Crosslinks (2 Fixed & 2

Gimbaled)• Three L-Band Phased Arrays• Two 42.5 sq. ft. GaAs Solar Arrays• One 60A-hr SPV NiH2Battery• Three-Axis Momentum-Biased

Attitude Control System• Redundant Orbit Adjust• Graphite Epoxy Structure• Active & Passive Thermal Control

Iridium Satellite Vehicle (SV)• Three Principal Elements Of SV:

– Payload – Provides All Command, Control and Communications Functions– Main Mission Antennas (MMAs) – Provide L-Band Telephony Functions– Bus – Platform For SV Operations, Provides Power, Pointing, Propulsion

Launch Configuration

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SV Constellation Life Assessment

• Extended Full Constellation Outlook to 2014– Hardware Loss Trend has Decreased Since Constellation Deployment (Infant

Mortality)– SV Subsystem Performance is Well Characterized and Understood with Over 4

Years of Operational Data– Successful Launches in 2002 and Strategy to Drift Satellites Between Planes

Improves Replenishment Flexibility– Aerospace GAP Run Validates Conservative Ten Year Lifetime Prediction– Updated Battery Reliability Data Significantly Improved Constellation Outlook – Successful Life Extending Initiatives Implemented On-Orbit– Single Commercial Gateway Configuration and Lower Than Designed Traffic

Loads Implies Reduces Stress, Thereby Increasing Reliability

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Manufacturing Differences

Craft Industry Lean Satellite Production

Unique Product Same ProductOptimized Locally Optimize Supply ChainContracts Based Partnership Based

Aerspace Practices Commerical IngenuityPerformance Only Process Driven DesignDistributed Factory Assembly Line

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Iridium Parts Program• General Philosophy

– Manage Parts & Materials Via Parts, Materials, and Processes Control Plan• Consideration of Quality Level and Package Selection• Diversity of Methods Allowed as Long as All Program Requirements Are Met• Key Requirement is Engineering Analysis and Justification for Part & Supplier

Selection– Select Parts Based On

• Lowest Total Cost to the Program, Not Just Part Costs• Knowledge of the Part and Its Potential Problems

– Select Suppliers Based on Their Knowledge of:• Their Products• Their Process Variability • Their Reliability and Reliability Drivers

– Optimize the Opportunity to Identify Problems in Advance– Implement a Program that Takes Advantage of Lessons Learned

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Iridium Parts Program (Cont’d)

• What the Parts Program was Not– A Program Which Blindly Used Commercial Parts, Based Upon

Reduced Recurring Cost• Extensive Nonrecurring Engineering was Done to Determine the Correct

Part for Every Application• Industrial and Military Parts were Also Used

– The Program Discourages the Conclusion that All Commercial Parts Are Acceptable for All Space Applications

• Only Specific Suppliers and Specific Parts Were Used• The Parts Used are Considered to Be Appropriate Only for this Specific

System’s Parameters

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Goals Obtained

Traditional Aerospace

Iridium Partnership

Savings

Quality Build, Test, Rebuild, Retest,

….

Build, Verify, Ship, Shoot

4 to 1

Cost $30K/lb $9K/lb 70%

Cycle Time 18 Months 2 Months 16 Months

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Iridium Assembly Process

Station 0 Material Receipt

Station 1 Heat-pipe Bonding

Station 2 Nadir Panel Assy

Station 3 Gateway Panel AssyStation 4 Comm Panel Assy

Station 5 Comm Panel Test

Station 6 Comm Equipment Test

Station 7 Gateway Panel Integration

Station 8 Comm Panel Assy IntegrationStation 9 SV Test

Station 10 EMI Test/Shear Panel

Station 11 MMA Integration

Station 12 SV Test

Station 13 Solar Array IntegrationStation 14 Launch Confidence Test

Station 15 SV Pack and Ship

Note: Additional detail of Iridium Manufacturing can be found in “Designing Space Systems for Manufacturability” can be found in Chapter 19 of Space Mission Analysis and Design, Third Edition.

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Stations 7 and 8Gateway and Comm Panel Assy

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Station 9SV Factory Test

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Station 11Main Mission Antenna Attach

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Station 12Thermal Cycle Test

ONE SYSTEM, GLOBALLY.Management Team

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Iridium Network Performance

• Voice/Data– Tempe Gateway Measured Performance: 8,590 Weekly Test Calls

• 99.2% Call Success Rate• 0.6% Call Drop Rate

• Short Burst Data Services– Tempe Measured Performance:

• 99.64% First Attempt Message Success Rate

Highly Reliable Satellite Communication Solutions