Sunday, April 15, 2018

Gorgeous Sunset Blastoff Delivers Multi Satellite Payload of Air Force Research Satellites to High Orbit on Mightiest ULA Atlas V

A United Launch Alliance (ULA) Atlas V rocket carrying the Air Force Space Command AFSPC-11 mission lifted off from Space Launch Complex-41 on April 14, 2018 at 7:13 p.m. EDT on Cape Canaveral Air Force Station, FL.  Credit: Ken Kremer/SpaceUpClose.com/kenkremer.com

Ken Kremer  --   SpaceUpClose.com  --   14 April 2018

CAPE CANAVERAL AIR FORCE STATION, FL – Skywatchers were treated to an afternoon delight with the gorgeous sunset blastoff of the mightiest Atlas V rocket from the Florida Space Coast on Saturday, April 14, delivering a multi-satellite payload of research satellites to high earth orbit for the U.S. Air Force  by rocket builder United Launch Alliance

The United Launch Alliance (ULA) Atlas V rocket carrying the Air Force Space Command (AFSPC)-11 mission lifted off from Space Launch Complex-41 on April 14 right at the opening of the launch window at 7:13 p.m. EDT.

“AFSPC-11 is a multi-payload mission,” noted ULA.

The Atlas V successfully delivered the payload codenamed AFSPC-11 to geostationary orbit as planned some six hours after a flawless liftoff from the sunshine state.


A United Launch Alliance (ULA) Atlas V rocket carrying the Air Force Space Command AFSPC-11 mission lifted off from Space Launch Complex-41 on April 14, 2018 at 7:13 p.m. EDT on Cape Canaveral Air Force Station, FL.  Credit: Ken Kremer/SpaceUpClose.com/kenkremer.com


The AFSPC-11 payload is comprised of a stacked pair of satellites named CBAS and EAGLE

The forward payload is referred to as CBAS (Continuous Broadcast Augmenting SATCOM) and the aft spacecraft is EAGLE (EELV Secondary Payload Adapter (ESPA) Augmented Geosynchronous Experiment), said Air Force officials.







“Today’s launch is a testament to why the ULA team continually serves as our nation’s most reliable and successful launch provider for our nation’s most critical space assets,” said Gary Wentz, ULA vice president of Government and Commercial Programs, in a statement.

“I want to thank the entire ULA team, and the phenomenal teamwork of our mission partners.”



ULA utilized the most powerful version of the Atlas V - dubbed 551- for the AFSPC-11 mission.

The first stage is powered by Russian-made RD-180 engines are augmented with 5 Aerojet-Rocketdyne solid rocket motors generating 2.6 million pounds of liftoff thrust.

The second stage is powered by a single RL10C-1 engine producing 22,900 lb of thrust. The payload is encapsulated inside the short version of the payload fairing that is 5 m (17 ft) in diameter.

Overall the two stage rocket measures 197 feet tall (60 m). 





The two publicly announced payloads on board are named CBAS and Eagle and stacked on top of one another inside the 5 meter (17 ft) diameter payload fairing.

“Air Force Space Command (AFSPC)-11, is a multi-manifested mission,” according to a ULA fact sheet.

“The forward spacecraft is referred to as CBAS (Continuous Broadcast Augmenting SATCOM) and the aft spacecraft is EAGLE (ESPA Augmented GEO Laboratory Experiment).”

“Managed by the Military Satellite Communications Directorate of the U.S. Air Force’s Space and Missile Systems Center, the CBAS Satellite is a military satellite communications spacecraft destined for geosynchronous orbit to provide communications relay capabilities to support our senior leaders and combatant commanders,” the Air Force said in a statement. 



“The mission of CBAS is to augment existing military satellite communications capabilities and broadcast military data continuously through space-based, satellite communications relay links.”









Watch for Ken’s continuing onsite coverage of NASA, National Security, SpaceX, ULA, Boeing, Lockheed Martin, Orbital ATK and more space and mission reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station, Florida.

Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news: www.kenkremer.com –www.spaceupclose.com – twitter @ken_kremer - ken at kenkremer.com


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