miércoles, 8 de marzo de 2017

Blue Origin details new rocket’s capabilities, signs first orbital customer

Stephen Clark




Artist’s concept of the New Glenn rocket. Credit: Blue Origin


Amazon.com’s Jeff Bezos revealed new details of his space company’s reusable orbital-class booster Tuesday, releasing an animation illustrating the rocket’s liftoff from Cape Canaveral and announcing a contract with Eutelsat to put a commercial communications satellite on one of the launcher’s first missions.

Speaking at the Satellite 2017 industry conference in Washington, Bezos said Blue Origin’s towering New Glenn rocket, named for pioneering astronaut John Glenn, could launch by 2020 and be reused up to 100 times.

Paris-based Eutelsat, one of the largest satellite telecom operators in the world, has signed up as the first paying customer for a New Glenn launch in 2021 or 2022.

“Eutelsat is one of the world’s most experienced and innovative satellite operators, and we are honored that they chose Blue Origin and our New Glenn orbital launch vehicle,” Bezos said in a statement.

“Eutelsat has launched satellites on many new vehicles and shares both our methodical approach to engineering and our passion for driving down the cost of access to space,” Bezos said. “Welcome to the launch manifest, Eutelsat, can’t wait to fly together.”

The New Glenn’s primary base will be at Cape Canaveral, where Blue Origin is constructing a cavernous rocket factory just outside the gates of NASA’s Kennedy Space Center. Blue Origin has started preliminary earthmoving work for a launch pad at Complex 36, a former Atlas rocket facility at nearby Cape Canaveral Air Force Station, and plans to install an engine test stand at neighboring Complex 11.


The animation released by Blue Origin on Tuesday shows the New Glenn rocket taking off from Complex 36 on the power of seven BE-4 main engines, burning a mixture of liquefied natural gas and liquid oxygen. The engines each produce about 550,000 pounds of thrust at full throttle, combining to generate 3.85 million pounds of thrust at liftoff.

The first stage engines will give way to a single modified BE-4 engine on the New Glenn’s second stage to deliver satellites, and eventually crews, into orbit, while the booster flips around and reignites to slow its descent toward a barge positioned offshore in the Atlantic Ocean, according to Blue Origin.

The New Glenn first stage will have aerodynamic fins, or strakes, for improved steering and extend six landing legs just before touchdown.

The recovery maneuver is familiar to industry officials and space enthusiasts, bearing similarity to the landings pioneered by rival SpaceX.

Blue Origin held a patent on its plans to land rocket boosters on ships in the ocean using rocket thrust to slow the vehicles down for landing, but SpaceX disputed the validity of the patent claims by pointing to academic papers and proposals dating back decades outlining concepts to recover rockets on ocean-going vessels for refurbishment and reuse.

Blue Origin in 2015 canceled the claims disputed by SpaceX, which achieved its first rocket landing at sea in April 2016.


The two-stage New Glenn variant, shown in the animation, will stand 270 feet (82 meters) tall and haul nearly 29,000 pounds, or 13 metric tons, to geostationary transfer orbit, the drop-off point for most communications satellites, like the platforms owned and operated by Eutelsat. The rocket’s payload capacity to low Earth orbit, a few hundred miles in altitude, will be nearly 100,000 pounds, or 45 metric tons, Bezos said.

With the addition of an optional third stage for deep space missions, the New Glenn’s height will increase to 313 feet (95 meters).

Blue Origin’s BE-4 engine in development to power the New Glenn rocket is scheduled to perform its full-scale hotfire test later this year at the company’s remote West Texas test site.

Bezos tweeted two pictures of the first fully-assembled BE-4 engine Monday, adding that the second and third copies are “following close behind.”

United Launch Alliance has tapped the BE-4 engine as its preferred powerplant for the next-generation Vulcan rocket scheduled for a maiden launch in 2019. ULA is paying Aerojet Rocketdyne, a traditional engine-builder, to continue developing its kerosene-fueled AR1 engine as a backup option.

“We are very close to selecting,” said Tory Bruno, president and CEO of ULA, in a Feb. 16 presentation at the University of Texas at El Paso. “And if the testing that happens in the next couple of months is successful, we’ll probably end up on that Blue Origin (engine).”

The BE-4 and AR1 will employ a staged combustion cycle, a more efficient engine cycle than currently available on other U.S. liquid hydrocarbon rocket engines. Staged combustion engines currently flying include the Russian RD-180 on ULA’s Atlas 5, which the Vulcan will replace.

It’ll be very exciting because it’ll bring that advanced Russian engine cycle technology to America, and it will make it much much better because this engine will be additively manufactured,” Bruno said. “It will be much more produceable. It will be much lighter, and it will be much much more affordable.”

Blue Origin’s first production engine, the BE-3, burns liquid hydrogen and liquid oxygen and flies on the company’s suborbital New Shepard rocket. The New Shepard has launched successfully six times, including five straight vertical liftoffs and landings with the same reusable single-stage booster in 2015 and 2016.


The first fully-assembled BE-4 engine. Credit: Blue Origin

Eutelsat has taken chances on new rockets before, placing its satellites on the inaugural launches of the Atlas 3, Atlas 5, Delta 4 and Ariane 5 ECA boosters in the early 2000s.

In a statement Tuesday, Eutelsat said the contract with Blue Origin “reflects Eutelsat’s longstanding strategy to source launch services from multiple agencies in order to secure access to space.”

Eutelsat said the New Glenn launcher will be compatible with “virtually all” of its satellites, allowing the company to assign a spacecraft to the mission 12 months ahead of time.

“Blue Origin has been forthcoming with Eutelsat on its strategy and convinced us they have the right mindset to compete in the launch service industry,” said Rodolphe Belmer, CEO of Eutelsat. “Their solid engineering approach, and their policy to develop technologies that will form the base of a broad generation of launchers, corresponds to what we expect from our industrial partners.

“In including New Glenn in our manifest, we are pursuing our longstanding strategy of innovation that drives down the cost of access to space and drives up performance,” Belmer said in a statement. “This can only be good news for the profitability and sustainability of our industry.”


https://spaceflightnow.com

sábado, 4 de marzo de 2017

Atlas 5 powers covert reconnaissance payload to orbit on its 70th mission


Performing a successful spacelift mission for the U.S. spy satellite agency, an Atlas 5 rocket delivered a surveillance package into orbit today believed by analysts to be another pair of tandem sleuths to scoop up radio signals from adversarial ships at sea.

Liftoff came at 9:49:51 a.m. local time (12:49:51 p.m. EST; 1749:51 GMT) from Vandenberg Air Force Base in California as the 191-foot-tall vehicle headed for space on its 70th mission.

The kerosene-fed RD-180 main engine powered the rocket off the pad at Space Launch Complex 3-East on South Vandenberg with 860,000 pounds of thrust.

It was a four-minute flight for the first stage before the cryogenic Centaur upper stage took over. The mission went into a news blackout once the 14-foot-diameter nose cone enclosing the payload was jettisoned about five minutes of liftoff.

The Centaur likely conducted two firings separated by a long coast period to achieve the 63-degree orbit for release of the payloads, thought to be two formation-flying satellites that will operate 700 miles above Earth.

The discard stage then was expected to be de-orbited into the Pacific, several hundred miles off Chile, to avoid space junk and a future uncontrolled re-entry.


Official launch portrait. Credit: United Launch Alliance


But analysts and satellite observers agree that today’s launch marked the eighth time since 2001 than an Atlas rocket of some configuration has deployed satellites to refresh the Naval Ocean Surveillance System, or NOSS. It was ULA’s fifth NOSS launch.

“NOSS satellites locate and track ships at sea by detecting their radio transmissions and analyzing them using the TDOA (time-difference-of-arrival) technique,” said Ted Molczan, a respected monitor of spacecraft.

“Normally, under favorable circumstances, these satellites reach magnitude +5, observable with 7×50 binoculars. Occasionally, they brighten to magnitude +2 to +4, readily visible to the un-aided eye. Rarely, they rival the brightest stars.”

Atlas launches for NOSS over the last 15.5 years have come from both Vandenberg and Cape Canaveral in Florida. This was the sixth to originate on the West Coast, and NOSS was the original customer that sparked revitalization of the SLC-3E pad in the late 1990s.

The current era is distinguished by two satellites, launched by the same rocket, working in tandem. The pairs of satellites, weighing an estimated 14,000 pounds at launch, orbit in close proximity to each other as they circle the Earth.

Previous generations of NOSS missions featured three satellites working as triplets. There were 11 of those launches to reach orbit between 1976 and 1996.



The NROL-79 mission logo. Credit: NRO

The NRO is the secretive government agency responsible for the country’s fleet of spy satellites. Agency officials don’t publicly disclose the identities or uses of satellites carried aboard its launches.

The NRO was created in 1961 and operated in total secrecy as a black organization until its existence was declassified in 1992. It began acknowledging in advance the launches of its payloads in 1996.

Today, the agency operates imaging and eavesdropping spacecraft, naval surveillance birds and data-relay satellites for the constellations.

The satellites serve as the country’s eyes and ears, operating in various orbits, to collect data for civilian leadership and warfighters.

“These systems provide the foundation for global situational awareness, and address the nation’s toughest intelligence challenges. Frequently, NRO systems are the only collectors able to access critical areas of interest, and data from overhead sensors provides unique information and perspectives not available from other sources,” according the agency.

“The NRO’s key customers and mission partners include: policymakers, the armed services, the intelligence community, Departments of State, Justice and Treasury, and civil agencies. All of them depend on the unique capabilities NRO systems provide.”

NRO duties range from monitoring the proliferation of weapons of mass destruction and tracking international terrorists to developing highly accurate military targeting data and bomb damage assessments.

“With its vigilance from above, the NRO gives America’s policymakers, intelligence analysts, warfighters and homeland security specialists the critical information they need to keep America safe, secure and free,” the NRO says.

The NRO has at least four more launches planned this year.



Today marked the 141st successful Atlas program launch in a row spanning more than two decades, the 70th for an Atlas 5 and the 117th in 123 months for United Launch Alliance.

In its 70 trips to space, the Atlas 5 has performed 26 flights dedicated to the Defense Department, 16 commercial missions, 14 for NASA and 14 for the National Reconnaissance Office.

This was the 46th time that the NRO had acknowledging one of its launches in advance since starting that practice in 1996, and the 24th to fly from Vandenberg.

** ATLAS 5 LAUNCHES FOR NRO **

AV-009: NROL-30 using Atlas 5-401 (June 15, 2007) Cape
AV-015: NROL-24 using Atlas 5-401 (Dec. 10, 2007) Cape
AV-006: NROL-28 using Atlas 5-411 (March 13, 2008) Vandenberg
AV-025: NROL-41 using Atlas 5-501 (Sept. 20, 2010) Vandenberg
AV-027: NROL-34 using Atlas 5-411 (April 14, 2011) Vandenberg
AV-023: NROL-38 using Atlas 5-401 (June 20, 2012) Cape
AV-033: NROL-36 using Atlas 5-401 (Sept. 13, 2012) Vandenberg
AV-042: NROL-39 using Atlas 5-501 (Dec. 5, 2013) Vandenberg
AV-045: NROL-67 using Atlas 5-541 (April 10, 2014) Cape
AV-046: NROL-33 using Atlas 5-401 (May 22, 2014) Cape
AV-051: NROL-35 using Atlas 5-541 (Dec. 13, 2014) Vandenberg
AV-058: NROL-55 using Atlas 5-401 (Oct. 8, 2015) Vandenberg
AV-065: NROL-61 using Atlas 5-421 (July 28, 2016) Cape
AV-068: NROL-79 using Atlas 5-401 (March 1, 2017) Vandenberg
NROL-79 was the first of back-to-back NRO missions by Atlas 5 from the West Coast. NROL-42 is planned for June using a powerful variant with four strap-on solid rocket boosters.

“We are already pressing on with L-42,” said Lt. Col. Eric Zarybnisky, 4th Space Launch Squadron commander and the Air Force launch director at Vandenberg. “We have received the booster and some other flight hardware. So we will launch L-79 and roll right into L-42. In fact, we are going to start working L-47, a Delta out here, shortly after that. So no rest for the weary here at Vandenberg for a little while.”

The next Atlas 5 will occur from Cape Canaveral on March 19 to send a commercial cargo ship to the International Space Station.

https://spaceflightnow.com