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United Launch AllianceAtlas V 551Space Launch Complex 41, Cape Canaveral SFS, FL, USA
AEHF-4 (USA 288)
Launched
October 17, 2018
Summary
AEHF-4 launched on an United Launch Alliance Atlas V 551 from Space Launch Complex 41, Cape Canaveral SFS, FL, USA on October 17, 2018. It was United Launch Alliance's 132nd launch, 8th this year and humanity's 5,786th orbital launch attempt. It was the 9th Atlas V 551 flight and the 2nd this year. The payload was bound for Geostationary Transfer Orbit (GTO). AEHF SV-4, one of 216 catalogued objects, reached a 9,162 × 35,343 km orbit inclined 12.7°. 216 objects from this launch are catalogued, one of them a payload.
- Watch
- Atlas V AEHF-4 Live Launch Broadcast (Oct. 16/17)United Launch Alliance
- Atlas V AEHF-4 Launch HighlightsUnited Launch Alliance
- Vehicle
- Atlas V 551 · United Launch Alliance
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Transfer Orbit (GTO)
- Milestone
- 9th Atlas V 551 flight · 2nd this yearUnited Launch Alliance's 132nd launch8th this yearhumanity's 5,786th orbital launch attempt80th orbital launch attempt this year
Webcast
Flight preview
Orbit: as tracked
AEHF SV-4 · NORAD 43651 · 2018-079 · Space-Track · tracking 1 of 216 objects
Show the numbers for orbit elements
- Object
- OBJECT A
- Object ID
- 2018-079A
- Epoch
- 2018-10-17 10:45:14 UTC
- Mean motion
- 1.79274614 rev/day
- Eccentricity
- 0.4573383
- Inclination
- 12.6562°
- Ascending node
- 299.5685°
- Arg. of perigee
- 179.9161°
- Mean anomaly
- 180.0282°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: GTO. Ascent drawn from padside's representative profile.
Catalogued objects
216 catalogued: 1 payload, 1 rocket stage, 214 debris; 214 still in orbit
- AEHF SV-4 · NORAD 43651 · in orbit
Centaur AV-073 · in orbit
Data from J. McDowell, planet4589.org
About this launch
This is the fourth satellite in the Advanced Extremely High Frequency (AEHF) system, which is a series of communications satellites operated by the United States Air Force Space Command. It provides global, survivable, protected communications capabilities for strategic command and tactical warfighters operating on ground, sea and air platforms.
Pad
Space Launch Complex 41, Cape Canaveral SFS, FL, USA
92nd launch from Space Launch Complex 41, 4th this year · 776th from Cape Canaveral SFS, FL, USA
125 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
185 days after the previous launch from this pad
Questions
When did AEHF-4 launch?
AEHF-4 launched on October 17, 2018. The time is known to the hour, not the minute.
Where can I watch AEHF-4?
Coverage: Atlas V AEHF-4 Live Launch Broadcast (Oct. 16/17); Atlas V AEHF-4 Launch Highlights. Watch the replay
What rocket launched AEHF-4?
Atlas V 551, flown by United Launch Alliance. Atlas V 551 spec sheet
Where did AEHF-4 launch from?
Space Launch Complex 41, Cape Canaveral SFS, FL, USA.
What orbit did AEHF-4 reach?
AEHF SV-4, one of 216 catalogued objects, reached a 9,162 × 35,343 km orbit inclined 12.7°.
How many satellites did AEHF-4 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).