Showing posts with label USA. Show all posts
Showing posts with label USA. Show all posts

Sunday, March 29, 2020

Last stop before launch: Orion passes tests and returns to Kennedy Space Center

The Orion spacecraft that will fly on the Artemis 1 mission around the Moon has returned to NASA's Kennedy Space Center in Florida, USA, after finishing space environment tests. The spacecraft, including ESA's European Service Module, is now at its final destination before launch. Orion spent four months at NASA's Plum Brook station where it was subjected to the vacuum and temperatures of -175C to 75C it will experience on its flight to the Moon. After proving its space-worthiness, the electronics - including the thousands of parameters and functions of the European Service Module that control the engines, electrical power and steering the solar panels to face the Sun - were checked for electromagnetic interference. ESA's Dominique Siruguet from the European Service Module integration and verification team says "The tests were successful and the behaviour of the vehicle was good, passing all requirements." Plum Brook station was chosen for the tests because thermal vacuum and electromagnetic compatibility could be performed in the same facility. This avoided additional transport of Orion, which is the size of a two-story house. Having passed its trials, the spacecraft was wrapped and moved by truck to an airport in Ohio for its return flight on NASA's Super Guppy aircraft.


Adding wings to Orion
The tests are not completely over for Orion, at Kennedy Space Center the crew module will be further prepared and more leak tests conducted. The European Service Module has tanks for fuel, oxygen and water that are critical for the astronauts. The gas tanks are pressurised and are connected to many pipes and valves, so it vital to make sure there are no leaks.

The solar wings that generate power during its mission will be installed, as well as protective covers called the Spacecraft Adapter Jettisoned fairings for the intense moments of launch on the world's most powerful rocket.

Later this year ESA will formally transfer ownership of the European Service Module to NASA and the spacecraft will move into the ground system phase where it will be united with the SLS rocket for a lift-off to the Moon.

Orion is a key component of Artemis 1 - an uncrewed test flight around the Moon that paves the way for the Artemis 3 mission, which will land the first woman and next man on the lunar surface by 2024. ESA is designing and supplying the European Service Module for the Orion spacecraft. This provides electricity, water, oxygen and nitrogen. It also keeps the spacecraft at the right temperature and on course, propelling it to the Moon and back once it has separated from the launcher.

Friday, July 27, 2018

SpaceX launches, lands rocket in challenging conditions

SpaceX's Falcon 9 rocket carried 10 Iridium satellites into orbit on Wednesday. The Iridium-7 mission marked SpaceX's 14th launch of the year and the seventh mission for Iridium Communications, which aims to launch 75 satellites into orbit. After Wednesday's mission, Iridium now has 65 satellites in operation. The rocket blasted-off early Wednesday morning from Vandenberg Air Force Base in California. "All 10 satellites have deployed into an on-target orbit," Spaceflight Now's Stephen Clark reported at 8:53 a.m. ET. As usual, SpaceX safely landed the rocket's reusable first stage. The rocket stage landed on the spaceport drone ship "Just Read the Instructions." Though SpaceX's rocket reusability has become routine, Wednesday's weather conditions made the feat more difficult. "Despite challenging weather conditions, Falcon 9 first stage booster landed on Just Read the Instructions," SpaceX wrote on Twitter. Foggy conditions made visibility a problem. At the outset of the live streaming broadcast, the Falcon 9 rocket was nearly invisible, only coming into clear view after liftoff. Choppy seas added to the challenge of landing the first stage back on Earth.




The 10 Iridium satellites will join the dozens of Iridium satellites already in space. The constellation of communication satellites -- now featuring 75 satellites and scheduled to get 10 more later this summer -- is designed to support the Internet of Things, the technology behind smart devices.

Thursday, June 21, 2018

Russia to deliver US new rocket engines

The US government is slated to receive one of two batches of Russian-made rocket engines in the second quarter of 2018, according to a leading Russian rocket designer, at nearly the same point when the newly created US Space Force is being established as a new branch of the US armed forces. The engines are used for delivering heavy payloads to space aboard the Atlas V launch vehicle - which will now presumptively fall under US Space Force, a sixth branch of the US armed forces announced by US President Donald Trump on Monday. "We have the Air Force and we're going to have the Space Force. Separate but equal." The US military's space command was formerly designated under the US Air Force's area of responsibility. "Currently, the production of commercial engines at Energomash is proceeding in compliance with the contracts signed," said Pyotor Lyvochkin, Chief Developer of Energomash Scientific and Production Association, Zero Hedge reported Sunday. "The dispatch of the first batch of RD-180 and RD-181 engines to the United States is planned for the second quarter of 2018," Lyvochkin noted.


The US space program relies on the RD-180 engine to power the first stage of the Atlas V rocket, the only American vehicle now capable of sending heavy payloads into space.

Trump boasted Monday "We don't want China and Russia and other countries leading us... We're going to be the leader by far." But when it comes to rocket engines, US personnel use the Russian-made engines. Similarly, US astronauts can only transit to the International Space Station aboard Russia's Soyuz spacecraft, meaning they have to go to Russia's leased facility in Kazakhstan, the Baikonur Cosmodrome.

In 2014, US lawmakers passed a measure requiring that the United States phase out its reliance on Russian-made rocket engines. However, since US firms have not been able to produce an engine with sufficient capabilities to match the RD-180, US military leaders say that they will be able to buy feasible US-made engines by the early 2020s.

"Right now we are on track... to complete the transition period [and] come out the back end with two domestic service providers," US Air Force Chief of Staff David Goldfein said in a congressional testimony last month when asked for an update on transitioning away from the RD-180 rocket engine.

Billionaire Jeff Bezos' space firm, Blue Origin, has been working on a replacement for the RD-180 for some seven years now.

As Sputnik News reported, United Launch Alliance acquires RD-180 engines through RD Amross, a US-Russian joint venture that includes Russian firm Energomash, which is responsible for manufacturing the engines.

RD Amross chief executive officer Michael Baker told Sputnik News in April that collaboration between Russia and the US was a "shining example" of US-Russian teamwork.

"Our joint cooperative programs between Russia and the US over the last 20 years have been a shining example of how our two countries can work to together to accomplish great things," Baker said.

Friday, December 15, 2017

Boeing tapped to sustain Space-Based Space Surveillance system

The Boeing Co. has been awarded a modified contract from the U.S. Air Force for sustainment of the space-based space surveillance Block 10 satellite. The deal, announced Wednesday by the Department of Defense and worth more than $21.9 million under the terms of the contract, is classified as a cost-plus-incentive-fee and cost-plus-fixed-fee contract. The Space Based Space Surveillance, or SBSS, Block 10 satellite operates 24-hours a day, 7-days a week with a clear and unobstructed view of objects orbiting Earth. The SBSS is used to "collect metric and Space Object Identification data for man-made orbiting objects without the disruption of weather, time of day and atmosphere that can limit ground-based systems." Work on the contract will be performed in California and Colorado, and is expected to be completed by June 2022.


Defense Department operation and maintenance funds from fiscal 2018 of more than $14.8 million have been obligated to Boeing at the time of award.

Monday, October 30, 2017

SpaceX to Launch Korean Communications Satellite Today: Watch It Live

SpaceX aims to pull off another launch-and-landing double play today (Oct. 30), and you can watch all the spaceflight action live. A SpaceX two-stage Falcon 9 rocket is scheduled to launch the KoreaSat 5A communications satellite at 3:34 p.m. EDT (1934 GMT) today from Florida's Cape Canaveral Air Force Station. You can courtesy of SpaceX, or directly via the company at http://www.spacex.com/webcast. If all goes according to plan, the booster's first stage will return to Earth for a soft landing less than 10 minutes after liftoff, settling vertically onto a SpaceX "drone ship" stationed off the Florida coast. Such landings are part of SpaceX's plan to develop fully and rapidly reusable rockets and space vehicles, a key priority for the company and its billionaire founder and CEO, Elon Musk. To date, SpaceX has aced 18 Falcon 9 touchdowns and re-launched landed boosters on three different occasions.


SpaceX has also re-flown a Dragon cargo capsule once and aims to do so again on its next resupply run to the International Space Station for NASA, which will launch no earlier than December.

KoreaSat 5A is owned by the South Korean company KTSat. The satellite will provide TV and other communications services to people in South Korea, Japan and Southeast Asia, according to the company's website. The satellite will also aid maritime communications from East Africa to East Asia.


KoreaSat 5A will replace KoreaSat 5, which launched in 2006.