UNITED STATES AIR FORCE

Delta II | Skynet 4D

SUCCESS Delta II →
Jan 10, 1998 at 00:32 UTC
Geostationary Orbit Communications Cape Canaveral SFS, FL, USA 100% success
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Live Orbit
Fullscreen
Mission Control3D trajectory · Live telemetry · AI narrator · Booster tracking
PADSpace Launch Complex 17B
SITECape Canaveral SFS, FL, USA →
ORBITGeostationary Orbit
TYPECommunications

Skynet 4 was the third generation of UK Ministry of Defense communications satellites. They provided jam-proof communications service between fixed and mobile land and sea-based ground stations.

VEHICLE
Delta II
MISSION
Skynet 4D
MISSION TYPE
Communications
TARGET ORBIT
Geostationary Orbit
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 4011fc4e-61af-4d99-a03b-f375345ef80a
Reported date: Jan 10, 1998 at 00:32 UTC
Last synced: 39 seconds ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
United Launch Alliance
VARIANT
7925-9.5
FLIGHTS
26
SUCCESSES
26
SUCCESS RATE
100%

Delta II is an American space launch system developed by McDonnell Douglas, now part of the Delta rocket family operated by United Launch Alliance. With more than 150 missions and a nearly perfect track record, Delta II has established itself as one of the most successful orbital launch systems.

When is the Delta II | Skynet 4D launch?
The Delta II | Skynet 4D is scheduled for Saturday, January 10, 1998 at 12:32 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 Skynet 4D?
The Delta II | Skynet 4D mission uses the Delta II rocket, manufactured by United Launch Alliance. The Delta II has flown 26 times with a 100% success rate.
Where is the Delta II | Skynet 4D launching from?
The launch takes place from Space Launch Complex 17B at Cape Canaveral SFS, FL, USA.
What orbit is Skynet 4D going to?
The Skynet 4D mission is targeting Geostationary Orbit.
Who is launching Skynet 4D?
The Delta II | Skynet 4D is operated by United States Air Force.
Can I watch the Delta II | Skynet 4D 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.
Mar 29, 2026 01:15 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 01:15 UTC
Launch date set: Jan 10, 1998 at 00:32 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 29, 2026 01:15 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 39 seconds ago
Launch Library 239 seconds ago
Launch ID: 4011fc4e-61af-4d99-a03b-f375345ef80a
Open-Meteo Weather4 days ago
Pad weather at 28.45, -80.57

Mission Profile

Skynet 4D was a Delta II 7925-9.5 mission operated by United States Air Force that lifted off from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on January 10, 1998. The flight carried its payload on a communications mission to Geostationary Orbit. The launch was a success.