Piąty AEHF 08.08. o 10:13:00,246 z Cape Canaveral wystrzelona została RN Atlas-5/551, która wyniosła w T+5h 37' 47" na orbitę
o planowanych parametrach: hp=8914 km, ha=35299 km, i=12,8° wojskowego satelitę telekomunikacyjnego AEHF-5.
http://lk.astronautilus.pl/n190801.htm#04Udany start Atlasa 5 z AEHF-5 BY KRZYSZTOF KANAWKA ON 10 SIERPNIA 2019
Start Atlasa 5 z AEHF-5 - 08.08.2019 / Credits -ULAÓsmego sierpnia rakieta Atlas 5 wyniosła wojskowego satelitę komunikacyjnego AEHF-5.
Rakieta Atlas 5 w konfiguracji 551 wystartowała 8 sierpnia 2019 roku o godzinie 12:10 CEST. Start nastąpił z wyrzutni LC-41 na Florydzie. Start natąpił dzięki United Launch Alliance – operatora, który obecnie oferuje rakiety rodziny Atlas 5 i Delta 4, w tym dla amerykańskich użytkowników wojskowych i rządowych.
Start AEHF-5 – 08.08.2019 / Credits – United Launch Alliance
Warto tu dodać, że start tej rakiety nastąpił mniej niż 36 godzin po starcie rakiety Falcon 9, także z Florydy. W tak krótkim czasie nastąpiła “rekonfiguracja” stanowiska wsparcia kontroli lotu (Eastern Range). W 2017 roku nastąpiła modernizacja sprzętu, pozwalająca na szybsze przygotowanie kontroli do kolejnych startów. Od tego roku możliwe jest wykonywanie startów z Florydy co około 48 godzin. Ma to duże znaczenie, gdyż już teraz różne typy rakiet startują z Florydy,
a kilka z nich może bardzo często latać.
Poprzedni satelita tej konstelacji
został wyniesiony w październiku 2018 roku. Satelity Advanced Extremely High Frequency (AEHF) służą do wojskowej komunikacji na pasmach Ka i K. Satelity AEHF mają dostarczać łączność o dużej przepustowości dla amerykańskich, kanadyjskich, holenderskich i brytyjskich wojsk na całym świecie poprzez sieć satelitów operujących na orbicie geostacjonarnej GEO.
(PFA)
https://kosmonauta.net/2019/08/udany-start-atlasa-5-z-aehf-5/Photos: Atlas 5 paints the sky with spectacular sunrise launchAugust 8, 2019 Stephen Clark
Credit: Ben Cooper / Launchphotography.comhttps://spaceflightnow.com/2019/08/08/photos-atlas-5-paints-the-sky-with-spectacular-sunrise-launch/Photos: AEHF 5 satellite encapsulated for launchAugust 7, 2019 Stephen Clark
The AEHF 5 communications satellite was encapsulated inside the Atlas 5 rocket’s payload fairing in early June at the Astrotech payload processing facility in Titusville, Florida. Credit: Lockheed Martinhttps://spaceflightnow.com/2019/08/07/photos-aehf-5-satellite-encapsulated-for-launch/Photos: Atlas 5 rocket rolls out to launch pad 41August 7, 2019 Stephen Clark
Credit: United Launch Alliancehttps://spaceflightnow.com/2019/08/07/photos-atlas-5-rocket-rolls-out-to-launch-pad-41/Atlas 5 launch adds to U.S. military’s secure communications satellite networkAugust 8, 2019 Stephen Clark
An Atlas 5 rocket lifts off at 6:13 a.m. EDT (1013 GMT) Thursday from pad 41 at Cape Canaveral Air Force Station, Florida. Credit: United Launch Alliance(...) Northrop Grumman supplies the communications payload for the AEHF satellites, which are designed to operate for at least 14 years.
Air Force officials anticipate a longer lifetime from AEHF 5, thanks to a high-energy boost from the Centaur upper stage. (...)
Thanks to the mission profile change, the AEHF 5 satellite separated in an orbit with a perigee, or low point, several thousand miles higher than achieved on the AEHF 4 launch last October. That means AEHF 5 will need to consume less of its own finite propellant supply to circularize its orbit, leading to a longer operating lifetime for the mission. (...)
Adding the cost of the Atlas 5 launch pushes the AEHF 5 mission cost to more than $1.2 billion.
A sixth AEHF satellite is scheduled to launch on an Atlas 5 rocket in March 2020, according to Air Force officials. (...)
https://spaceflightnow.com/2019/08/08/atlas-5-launch-adds-to-u-s-militarys-secure-communications-satellite-network/ULA Atlas 5 launches Air Force AEHF-5 communications satelliteby Sandra Erwin — August 8, 2019 Updated 11:53 AM payload separation
An Atlas 5 carrying AEHF-5 lifted off August 8, 2019 at 6:13 AM EST from Cape Canaveral. Credit: ULAAn Atlas 5 carrying AEHF-5 lifted off at 6:13 AM EST from Space Launch Complex-41 from Cape Canaveral Air Force Station.HUNTSVILLE, Ala. — A United Launch Alliance Atlas 5 rocket on Thursday launched the fifth Advanced Extremely High Frequency (AEHF-5) communications satellite for the U.S. Air Force Space and Missile Systems Center. The Atlas 5 in the 551 configuration with five solid rocket boosters lifted off at 6:13 AM EST from Space Launch Complex-41 from Cape Canaveral Air Force Station, Florida.
Approximately five hours, 40 minutes after launch, AEHF-5 separated and was deployed into space.
AEHF satellites provide secure, jam-proof connectivity for U.S. national leadership and deployed military forces. Atlas V rockets successfully launched the first four AEHF satellites in 2010, 2012, 2013 and 2018.
The AEHF-5 launch marks the 80th Atlas 5 mission since the inaugural launch in 2002 and the 10th in the 551 configuration with the Centaur upper stage and a five-meter diameter payload fairing.
The 6,500 kg. AEHF-5 completes a geostationary ring of five satellites providing global coverage for the United States and international partners Canada, the Netherlands and the United Kingdom.
The Atlas 5 rocket’s Centaur upper stage completed first burn at 6:25 AM. At 6:29 AM launch data showed that the first burn by Centaur inserted the rocket into the target orbit as planned. The second main engine cutoff was confirmed for Centaur at 6:42 AM, completing the next step towards the targeted orbit to deploy AEHF-5. The rocket then began a five-hour coast away from Earth to reach the proper point in space for the third burn by the upper stage.
Thursday’s launch was the 251st flight of the hydrogen-fueled Centaur. For this mission, it carried an experimental cubesat as a rideshare payload.
https://spacenews.com/ula-atlas-5-launches-air-force-aehf-5-communications-satellite/Air Force cubesat successfully deployed from Atlas 5 upper stageby Sandra Erwin — August 8, 2019
An Atlas 5 carrying AEHF-5 lifted off August 8, 2019 at 6:13 AM EST from Cape Canaveral. Credit: ULAOn the way to its target orbit, the Atlas’ Centaur upper stage rocket released a cubesat that was riding as a secondary payload.WASHINGTON — The Air Force’s Advanced Extremely High Frequency (AEHF-5) communications satellite reached orbit on Thursday after it successfully separated from a United Launch Alliance Atlas 5 rocket approximately 5 hours and 40 minutes after liftoff from Cape Canaveral Air Force Station, Florida.
On the way to its target orbit, the Atlas’ Centaur upper stage rocket released a cubesat that was riding as a secondary payload. “The mission is complete and successful,” said ULA spokeswoman Heather McFarland.
This was the first time the Air Force Space and Missile Systems Center designed a mission where the rideshare payload separated prior to the anchor mission. SMC’s cubesat will be used to test orbital debris tracking technologies.
The engineering work to prepare the 12U cubesat to ride on the Centaur’s aft bulkhead carrier was done by Parsons as part of a five-year $100 million contract SMC awarded the company to serve as “launch manifest systems integrator.” Parsons leads a team that includes Adaptive Launch Solutions, Tyvak Nanosatellite Solutions and Moog.
Under the contract, Parsons is responsible for “manifest development, assembly, mission integration and technical analysis,” Carey Smith, Parsons’ chief operating officer, told SpaceNews. “The vehicle manufacturer does the actual connection,” she said.
It took the company about seven months from the time it was assigned the payload to get it ready for launch. As part of the SMC contract, Parsons can integrate payloads with any launch vehicle and uses six different types of multi-manifest carriers. Its next mission will be to integrate a secondary payload for the Atlas 5 launch of Landsat 9, a NASA Earth observation satellite projected to launch in December 2020.
It is up to SMC to determine if or where a secondary payload rides in any mission. “They decide where it goes, where the available margin is,” Smith said. “We help them with the configuration for how they would attach it.” For the AEHF-5 mission it was on the upper stage. It could also attach to the payload fairing where the primary sits on top of the secondary payload.
“We believe you’re going to see many more of these,” said Smith. “You could theoretically imagine multi-manifests going up with nearly every launch to take advantage of the available capacity.”
https://spacenews.com/air-force-cubesat-successfully-deployed-from-atlas-5-upper-stage/Atlas 5 launch timeline on the AEHF 5 missionAugust 8, 2019 Stephen Clark
T+5:40:35.7: AEHF 5 Separation
The AEHF 5 spacecraft deploys from the Centaur upper stage.https://spaceflightnow.com/2019/08/08/atlas-5-launch-timeline-on-the-aehf-5-mission/ULA Primed for 80th Atlas V Launch with USAF 'AEHF-5' Satellite Thursday MorningBy Ben Evans, on August 7th, 2019
An AEHF satellite during testing. Note tower-like feeder horns (top left) that face dish antennas atop spacecraft. Those will face Earth in space. They are specifically the “nullers” that will counter any hostile jammers that attack this warfighting satellite. Side mounted white dishes, and similar ones on opposite side fold out. Large dish is one of two large crosslink antennas to relay secure transmissions from one AEHF to another around the Earth. Small white antennas will form dozens of spot beams on entire hemisphere simultaneously. Photo Credit: Lockheed MartinFor the tenth time in its history, United Launch Alliance (ULA) will fly the most powerful member of its Atlas V fleet at 5:44 a.m. EDT Thursday, 8 August, when a 551 booster—boasting a 17.7-foot-diameter (5-meter) payload fairing, five strap-on solid-fueled rockets and a single-engine Centaur upper stage—rises from Space Launch Complex (SLC)-41 at Cape Canaveral Air Force Station, Fla.
Previously labeled “the bruiser” by ULA CEO Tory Bruno, the 551 will carry the fifth Advanced Extremely High Frequency (AEHF-5) military communications satellite. Built by Lockheed Martin, this satellite will join its four cousins, launched between August 2010 and last October, in providing fast and secure communications to link civilian leaders with military assets, anywhere in the world. Thursday’s mission also marks the 80th launch by an Atlas V, tracing an ancestry (and an impressive success rate) back to its maiden flight in August 2002. (...)
The AEHF-5 payload is readied for transfer to the launch site. Video Credit: Air Force Space Command/YouTube(...) When operational, the 13,600-pound (6,170 kg) AEHF-5 will take its place as the fifth member of a “constellation” of high-powered satellites, providing fast and secure communications to connect civilian leadership with military assets, anywhere in the world. Built by Lockheed Martin in Sunnyvale, Calif., and with a “protected communications payload” developed by Northrop Grumman Corp., headquartered in Bethpage, N.Y., the AEHF system replaces the outdated Milstar network and—as its name implies—operates at extremely high frequencies (44 GHz uplink) and super-high frequencies (20 GHz) downlink and can relay communications directly, without the need to pass through ground stations. Their phased-array antennas help to eliminate potential sources of radio jamming and each AEHF can support data rates as high as 8.192 Mbits/sec. (...)
https://www.americaspace.com/2019/08/07/ula-primed-for-80th-atlas-v-launch-with-usaf-aehf-5-satellite-thursday-morning/ULA Lofts AEHF-5 Military Sentinel to Orbit as Rocket Production Ramps Up to 'Record Setting Pace'By Ben Evans, on August 8th, 2019
The fifth USAF Advanced Extremely High Frequency communications satellite (AEHF-5) being encapsulated for launch within the Atlas V’s bullet-like payload fairing. Photo: Lockheed MartinAlmost five months since it last flew, United Launch Alliance (ULA) successfully closed-out a gap in missions on Thursday, 8 August, when its Atlas V 551 heavylifter roared aloft from Space Launch Complex (SLC)-41 at Cape Canaveral Air Force Station, Fla., laden with the latest Advanced Extremely High Frequency (AEHF-5) military communications satellite, bound for geostationary orbit. The 551—numerically designated to identify a 17.7-foot-diameter (5-meter) payload fairing, five strap-on, solid-fueled rockets and a single-engine Centaur upper stage—took flight at 6:13 a.m. EDT.
Coming 145 days since the last ULA launch, back in March, this represents the longest span between two missions
in the 13-year history of the Centennial, Colo.-based launch provider. It is ULA’s third flight of 2019 and the 80th launch by a member of the Atlas V fleet. (...)
https://www.americaspace.com/2019/08/08/ula-lofts-aehf-5-military-sentinel-to-orbit-as-rocket-production-ramps-up-to-record-setting-pace/https://www.nasaspaceflight.com/2019/08/atlas-v-aehf-5-launch-cape-canaveral/AEHF 5 (USA 292 ?)
https://space.skyrocket.de/doc_sdat/aehf-1.htmTDO
https://space.skyrocket.de/doc_sdat/tdo.htm