August 2, 2025
Spaceflight Now
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop
Breaking News
  • [ August 1, 2025 ] NASA, SpaceX ‘thread the clouds’ to launch Crew-11 to the International Space Station Falcon 9
  • [ July 31, 2025 ] Launch preview: SpaceX, NASA launches Crew-11 following 1-day weather scrub Falcon 9
  • [ July 29, 2025 ] SpaceX launches 28 Starlink satellites on a Falcon 9 rocket from Cape Canaveral Falcon 9
  • [ July 28, 2025 ] SpaceX, NASA conduct static fire test of a Falcon 9 rocket ahead of the Crew-11 launch Falcon 9
  • [ July 26, 2025 ] SpaceX launches 24 Starlink satellites into a polar orbit Falcon 9

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

« 1 2

News Headlines

  • NASA, SpaceX ‘thread the clouds’ to launch Crew-11 to the International Space Station
    August 1, 2025
  • Launch preview: SpaceX, NASA launches Crew-11 following 1-day weather scrub
    July 31, 2025
  • SpaceX launches 28 Starlink satellites on a Falcon 9 rocket from Cape Canaveral
    July 29, 2025
  • SpaceX, NASA conduct static fire test of a Falcon 9 rocket ahead of the Crew-11 launch
    July 28, 2025
  • SpaceX launches 24 Starlink satellites into a polar orbit
    July 26, 2025
  • Crew-11 astronauts, cosmonaut arrive in Florida ahead of launch to the space station
    July 26, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    July 25, 2025
  • Amazon says $139.5 million investment in Florida is key to ramping up launch cadence with Project Kuiper
    July 24, 2025
  • NASA probes to study how the solar wind triggers potentially dangerous ‘space weather’
    July 23, 2025
  • FAA: ‘Regional power outage’ causes last-minute scrub of NASA’s TRACERS mission
    July 22, 2025
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop

© 1999-2025 Spaceflight Now Inc