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USA 554
active
Technology Demonstration
GEO
COSPAR 2025-173B
Launched 8/13/2025
Admin Edit
Mission & Launch
Launch Mission
USSF-106
Launch Vehicle
Vulcan Centaur VC4S
Launch Date
8/13/2025
Orbit & Mass
Orbit Class
GEO
Altitude
36,153.5 km
Inclination
2.85 deg
Dry Mass
500 kg
Total Mass
500 kg
Payload Classification
Mission Type
Technology Demonstration
Payload Category
TECH
Payload Class
D
Organizations
Operator
U.S. Space Force
Manufacturer
Northrop Grumman
Registry
COSPAR ID
2025-173B
Track