UNITED LAUNCH ALLIANCE
Delta IV M+(4,2) | GPS IIF-6 (USA-251)
—
—
May 17, 2014 at 00:03 UTC
▸ Flight profile›
Initializing Launch Globe…
PADSpace Launch Complex 37B
SITECape Canaveral SFS, FL, USA →ORBITMedium Earth Orbit
TYPENavigation
PROGRAMGlobal Positioning System
MISSION OVERVIEW
GPS IIF (Global Positioning System) or Navstar-2F (Navigation System using Timing And Ranging) satellites are the fourth evolution stage of the second generation of the GPS satellites. Improvements included an extended design life of 12 years, faster processors with more memory, and a new civil signal on a third frequency.
LAUNCH DETAILS
VEHICLE
Delta IV M+(4,2)AGENCY
United Launch AllianceMISSION
GPS IIF-6
MISSION TYPE
Navigation
TARGET ORBIT
Medium Earth Orbit
LAUNCH PAD
Space Launch Complex 37BLAUNCH SITE
Cape Canaveral SFS, FL, USAPROGRAM
Global Positioning System
COUNTRY
USA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: f8d9fe33-b8ef-4881-9618-3bdf27f44707
Reported date: May 17, 2014 at 00:03 UTC
Last synced: 13 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
Loading weather…
CAN YOU SEE THIS LAUNCH?
Select a location to check if this launch is visible from where you are
VEHICLE — Delta IV M+(4,2) →
MANUFACTURER
United Launch Alliance
VARIANT
M+(4,2)
FLIGHTS
15
SUCCESSES
15
SUCCESS RATE
100%
FREQUENTLY ASKED QUESTIONS
When is the Delta IV M+(4,2) | GPS IIF-6 (USA-251) launch?
The Delta IV M+(4,2) | GPS IIF-6 (USA-251) is scheduled for Saturday, May 17, 2014 at 12:03 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for GPS IIF-6?
The Delta IV M+(4,2) | GPS IIF-6 (USA-251) mission uses the Delta IV M+(4,2) rocket, manufactured by United Launch Alliance. The Delta IV M+(4,2) has flown 15 times with a 100% success rate.
Where is the Delta IV M+(4,2) | GPS IIF-6 (USA-251) launching from?
The launch takes place from Space Launch Complex 37B at Cape Canaveral SFS, FL, USA.
What orbit is GPS IIF-6 going to?
The GPS IIF-6 mission is targeting Medium Earth Orbit.
Who is launching GPS IIF-6?
The Delta IV M+(4,2) | GPS IIF-6 (USA-251) is operated by United Launch Alliance. It is part of the Global Positioning System program.
Can I watch the Delta IV M+(4,2) | GPS IIF-6 (USA-251) launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 29, 2026 00:03 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 00:03 UTC
Launch date set: May 17, 2014 at 00:03 UTC
NET (No Earlier Than) confirmed by United Launch Alliance
Mar 29, 2026 00:03 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 13 minutes ago
●Launch Library 213 minutes ago
Launch ID: f8d9fe33-b8ef-4881-9618-3bdf27f44707
●Open-Meteo Weather1 month ago
Pad weather at 28.53, -80.56
Mission Profile
GPS IIF-6 was a Delta IV M+(4,2) mission operated by United Launch Alliance that lifted off from Space Launch Complex 37B, Cape Canaveral SFS, FL, USA on May 17, 2014. The flight carried its payload on a navigation mission to Medium Earth Orbit. It was flown as part of the Global Positioning System program. The launch was a success.