GPS Block IIIA.jpg
Artist's rendering of GPS-III SV02 in orbit.
NamesNavstar 78
Mission typeNavigation
COSPAR ID2019-056A Edit this at Wikidata
SATCAT no.44506
Mission duration15 years (planned)
Spacecraft properties
SpacecraftGPS-III SV02
Spacecraft typeGPS Block III
ManufacturerLockheed Martin
Launch mass3680 kg
Start of mission
Launch date22 August 2019, 13:06 UTC
RocketDelta IV
Launch siteCape Canaveral, SLC-37
ContractorUnited Launch Alliance
Orbital parameters
Reference systemGeocentric orbit
RegimeMedium Earth orbit
(Semi-synchronous orbit)
Perigee altitude20,157 km (12,525 mi)
Apogee altitude20,221 km (12,565 mi)
Period718.0 minutes

USA-293, also known as GPS-III SV02 or Magellan, is a United States navigation satellite which forms part of the Global Positioning System. It was the second GPS Block III satellite to be launched.


SV02 is the second GPS Block III satellite to be launched. Ordered in 2008, technical delays to the first satellite in the program, SV01, pushed launch back to 2019.[1]

The spacecraft is built on the Lockheed Martin A2100 satellite bus, and weighs in at 3,680 kg (8,110 lb).[2]


USA-293 was launched by United Launch Alliance on 22 August 2019 at 13:06 UTC atop a Delta IV Medium.[3] The launch was the final flight of the single-core Delta IV, with all subsequent flights being on the triple-core Delta IV Heavy.[4] The launch took place from Cape Canaveral Space Launch Complex 37, and deployed USA-293 directly into a semi-synchronous orbit.[4]


As of 2021, USA-293 was in a 55.4 degree inclination orbit with a perigee of 20,157 kilometres (12,525 mi) and an apogee of 20,221 kilometres (12,565 mi).[5]

GPS-III SV02 is launched on a Delta IV
GPS-III SV02 is launched on a Delta IV


  1. ^ "Defense Acquisitions - Assessments of Selected Weapon Programs" (PDF).((cite web)): CS1 maint: url-status (link)
  2. ^ "GPS-3 (Navstar-3)". Gunter's Space Page. Retrieved 25 March 2021.
  3. ^ "United Launch Alliance Successfully Launches GPS III Satellite for U.S. Air Force Space and Missile Systems Center". Retrieved 24 March 2021.
  4. ^ a b "Delta IV Medium's well-earned retirement with GPS finale". 22 August 2019. Retrieved 24 March 2021.
  5. ^ "Technical details for satellite NAVSTAR 78 (USA 293)". - Real Time Satellite Tracking and Predictions. Retrieved 24 March 2021.