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GSSAP

Delta 4

Live coverage: Tonight’s Delta 4 countdown and launch journal

August 17, 2016 Justin Ray

A pair of Air Force surveillance satellites headed to geosynchronous orbit today to reconnoiter the high ground, departing Cape Canaveral aboard a United Launch Alliance Delta 4 rocket at 12:52 a.m. EDT (0452 GMT). It is the 375th Delta rocket flight since 1960.

Delta 4

Preview: Two space informants to be launched to geosynchronous orbit

August 16, 2016 Justin Ray

The Air Force will launch a second pair of small security probes 22,300 miles above the Earth using a Delta 4 rocket on Friday to alert ground controllers of impending space collisions and monitor potential meddling with U.S. orbiting assets.

Delta 4

Timeline: Delta 4/GSSAP launch events

August 16, 2016 Justin Ray

Follow the unclassified portion of the Delta 4 rocket’s ascent to space from Cape Canaveral’s Complex 37 launch pad with the U.S. Air Force’s two Geosynchronous Space Situational Awareness Program, or GSSAP, satellites.

Uncategorized

Weather outlook good for Friday’s early morning Delta 4 launch

August 15, 2016 Justin Ray

Air Force meteorologists are giving favorable weather odds for the Delta 4 rocket to launch a pair of space surveillance satellites early Friday morning from Cape Canaveral.

Delta 4

Photos and video: Payload hoisted atop Delta 4 for upcoming launch

August 12, 2016 Justin Ray

The two Geosynchronous Space Situational Awareness Program, or GSSAP, satellites for the U.S. military are mounted aboard the United Launch Alliance Delta 4 rocket. Liftoff is planned for Aug. 19 from Cape Canaveral.

Delta 4

Air Force satellite duo mated to Delta 4 rocket for next week’s launch

August 9, 2016 Justin Ray

Two space informants to track objects in geosynchronous orbit have been mounted atop their Delta 4 launch vehicle for liftoff Aug. 19.

Delta 4

Delta 4 rocket undergoes launch day rehearsal for its next Air Force mission

July 30, 2016 Justin Ray

A United Launch Alliance Delta 4 rocket went through a practice countdown and fueling exercise this week to prepare for its Aug. 19 liftoff to deliver a pair of orbital surveillance satellites into space.

Delta 4

Delta 4 rolls out for second launch in ‘neighborhood watch’ effort

July 6, 2016 Justin Ray

Just three weeks after the Delta 4-Heavy rocket left the launch pad on its way to a successful satellite-deployment mission for U.S. national security, a smaller booster in the family has rolled out for its August military flight.

Atlas 5

2016 manifest preview: United Launch Alliance’s busy year ahead

January 2, 2016 Justin Ray

Some of America’s most critical surveillance satellites, final members of other spacecraft series and a probe that will touch an asteroid are among 15 rocket flights planned by United Launch Alliance in 2016.

Delta 4 Launch
Delta 4

Space surveillance craft launched by Delta 4 rocket

July 28, 2014 Spaceflight Now

A pair of covertly developed inspector satellites to monitor collision threats and nefarious activities in geosynchronous orbit for U.S. Strategic Command blasted off aboard a Delta 4 rocket.

Posts pagination

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News Headlines

  • SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    August 22, 2025
  • SpaceX launches Space Force’s X-37B spaceplane to demo laser communications, quantum navigation
    August 22, 2025
  • Launch preview: SpaceX to launch X-37B military spaceplane on Falcon 9 rocket from the Kennedy Space Center
    August 20, 2025
  • Firefly Aerospace explores launching its Alpha rocket from Japan
    August 20, 2025
  • SpaceX flies 24 Starlink satellites on its 100th Falcon 9 rocket launch of 2025
    August 17, 2025
  • SpaceX schedules 10th test flight for Starship, details recent setbacks
    August 16, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    August 14, 2025
  • ULA launches Vulcan rocket on first Space Force mission
    August 13, 2025
  • Launch preview: ULA to launch first national security mission on a Vulcan rocket
    August 12, 2025
  • SpaceX launches Amazon’s Project Kuiper satellites on fifth scheduled attempt
    August 10, 2025
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