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Defense Support Program
Photo: United States Air Force · Wikimedia Commons · Public domain
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DefenseSupportProgram

Early Warning Satellites · United States · 1970
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DefenseSupportProgram

Defense Support Program
Defense Support Program Photo: United States Air Force · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Detection Sensitivity
95
Coverage
90
Cue Speed
85
Persistence
100
False-Alarm Control
80
Survivability
70
Longevity
95
Data-Link
75
Technology
85
Strategic Impact
100
Origin United States
CategoryEarly Warning Satellites
EraCold War
In service1970
Operators1 countries
Data Quality83%
MASS(Military Archive Scoring System)
89
Early Warning Satellites MASS Rating
1/1
Cold War
1/4
All-Time
Early Warning Satellites · 10 axes scored
Detection Sensitivity
95
Coverage
90
Cue Speed
85
Persistence
100
False-Alarm Control
80
Survivability
70
Longevity
95
Data-Link
75
Technology
85
Strategic Impact
100
ⓘ Regardless of era, the same scoring system applies to all units in the early warning satellites category.
01 / Overview
Defense Support Program
Production
1970–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
EARLY WARNING SATELLITES · COLD WAR
1
PERFORMANCE/PRICE
88
UNIT COST (2025 USD)
—
89
early warning satellites category
ⓘ Performance/Price and MASS score are computed across all units in the early warning satellites category, regardless of era.
02 / Specs & Design
03 / History
SERVICE LIFESPANStill in Service
  1. 1970Production started
56
years in service
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📚 Sources
📖 ENCYCLOPEDIA Browse the Early Warning Satellites entry →