Tag: competition

Microsoft inserts ads in Windows 10

6:18 pm

Why I use Linux, part 5,234,657: Microsoft is now inserting advertisements for its software throughout its Windows 10 operating system.

Microsoft has taken the next step in pushing advertising on customers of its Windows 10 operating system, with users reporting an advertisement for Microsoft OneDrive now appearing in their File Explorer.

Windows 10 has been repeatedly reprimanded by technology journalists over the past year for the increasing amounts of advertising that are baked into the system. Advertisements in various forms have appeared in the Start menu, the lock screen, the taskbar, in the Windows Store, and various other areas. This seems to be the first time that users are noticing them in the File Explorer, the application that allows users to look through their documents and applications on their computer.

As I have been saying for years, dump Windows. It invades your privacy, provides you bad service while crashing at the worst possible moments. There are alternatives. I have been using Linux now for more than a decade, and it hasn’t held me back. Here again are the links to James Stephens’ series on Behind the Black for Getting and Installing Linux:

2 comments

Parachute tests for Boeing Starliner

8:45 am

Boeing’s Starliner spacecraft has successfully completed a parachute test at New Mexico’s Spaceport America.

Uniquely, this test wasn’t conducted via the use of a helicopter of an aircraft – as seen with other vehicles, such as the Orion spacecraft. Boeing was not able to fit the Starliner test article into the hold of a C-130 or C-17 aircraft, so they instead used a 1.3-million-cubic-foot balloon, which is able to lift the capsule to its intended altitude.

The test went well, with Starliner released from the balloon, deploying two drogue parachutes at 28,000 feet to stabilize the spacecraft, then its pilot parachutes at 12,000 feet. The main parachutes followed at 8,000 feet above the ground prior to the jettison of the spacecraft’s base heat shield at 4,500 feet. Finally, the spacecraft successfully touched down.

The article once again makes note of NASA’s fake concern over the Atlas 5 rocket. The concern isn’t that the rocket isn’t reliable. The concern is that Boeing hasn’t yet gotten NASA’s certification that it is reliable. In other words, because NASA hasn’t signed a piece of paper stating the obvious fact that the Atlas 5 is safe, Boeing’s Starliner cannot be considered safe.

Leave a comment

Decision on new Orbital ATK rocket expected in 2018

9:56 pm

The competition heats up? Orbital ATK says it will decide whether it will introduce a new commercial rocket sometime in early 2018.

Orbital ATK has released few details about what is known only as its “Next-Generation Launcher.” The vehicle would use solid-fuel lower stages based on space shuttle solid rocket motor segments developed by the company, as well as solid strap-on boosters. A liquid-oxygen, liquid-hydrogen upper stage would use a version of Blue Origin’s BE-3 engine that company is currently flying on its New Shepard suborbital vehicle.

The rocket’s design has at least superficial similarities to a vehicle concept called Liberty that ATK proposed prior to its merger with Orbital Sciences Corporation. Liberty, with a five-segment shuttle solid rocket booster first stage and a second stage derived from the Ariane 5 core stage provided by Astrium, was itself a commercial spinoff of the cancelled Ares 1 rocket from NASA’s Constellation program. ATK proposed Liberty for NASA’s commercial crew program but failed to win funding.

The decision itself will be based on whether the Air Force remains interested. At the present time the Air Force is investing about half the capital required to develop the rocket. If the Air Force backs out, Orbital ATK will decide against the rocket. If the Air Force support remains firm, they will go ahead with development. Essentially, this story is Orbital ATK lobbying to keep the Air Force support going.

8 comments

Congress micromanages rocket development at ULA

9:16 am

Corrupt Congress: Even though ULA favors Blue Origin’s BE-4 engine for its Vulcan rocket, various elected officials in Alabama are pushing the company to use Aeroject Rocketdyne’s AR-4 engine instead.

At the end of February, two US representatives, Mike Rogers of Alabama [Republican] and Mac Thornberry of Texas [Republican], decided to push a little harder. On February 28, they sent a letter to Lisa Disbrow, the acting secretary of the US Air Force, and James MacStravic, who is performing the duties of the undersecretary of defense for acquisition, technology, and logistics. In addition to reiterating a desire that ULA continue to fly a second rocket, the Delta IV Heavy, the letter urges the Pentagon officials to be skeptical about the BE-4 engine.

“The United States Government (USG) must have a hands-on, decision-making role… in any decision made by United Launch Alliance to down-select engines on its proposed Vulcan space launch system, especially where one of the technologies is unproven at the required size and power,” the letter states. “If ULA plans on requesting hundreds of millions of dollars from the USG for development of its launch vehicle and associated infrastructure, then it is not only appropriate but required that the USG have a significant role in the decision-making concerning the vehicle.” The letter then goes on to say the Air Force should not give any additional funding to ULA, other than for current launch vehicles, until the company provides “full access, oversight of, and approval rights over decision-making” in its choice of contractors for the engines on Vulcan.

The article also mentions porkmaster Senator Richard Shelby (R-Alabama), who also favors Aerojet Rocketdyne because they say they will build it in Alabama. Note also that these elected officials are not only trying to pick the winner in the private competition between these two rocket engines, they also want to force ULA to keep using the Delta rocket, even though it is very expensive and not competitive with the newer rockets being developed by other companies. And their only reason for doing so is because they provide jobs for their districts.

This one story illustrates perfectly the corruption that permeates both parties in Congress. While it is more likely that Democrats will play this pork game, there are plenty of corrupt Republicans who play it as well. These petty dictators all think they have the right to interfere in the private efforts of Americans, whether it involves building a new rocket or buying health insurance. And all we get from this is a poorer nation and a bankrupt federal government.

4 comments

Stratolaunch to fly in 2017?

9:02 am

The competition heats up: In an interview Paul Allen has revealed that he hopes to begin flight tests of his gigantic Stratolaunch airplane, the largest ever built, later this year.

No word on the rocket that this air-launched system would launch, however. In fact, it appears that no one seems interested in providing one. This could change once the plane is flying.

4 comments

Blue Origin signs second contract for New Glenn

11:33 pm

The competition heats up: One day after announcing its first launch contract, Blue Origin announced today a second contract for its New Glenn rocket.

In a tweet this morning, Blue Origin Founder Jeff Bezos said OneWeb has reserved five launches using the rocket, bringing to six the number of missions in the New Glenn manifest.

So far I can find no information about the prices being charged by Blue Origin for these launches. I suspect they are giving their customers discounts for being the first, but this is not confirmed yet.

Leave a comment

A Kuwaiti space agency?

8:29 am

The competition heats up: At least one scientist in Kuwait, after attending a conference where the UAE’s space effort was highlighted, thinks her country should form its own space agency also.

Establishing a space agency/program is not a fantasy, it is the way of the future, which will bring numerous economic and scientific benefits, Assistant Professor at the Physics Department of Kuwait University (KU) Dr. Hala Al-Jassar said during an interview with Kuwait News Agency (KUNA).

While attending the recently held Abu Dhabi Space Congress, Dr. Al-Jassar said that she was amazed and intrigued by one of the participants’ contributions to the event. The participant laid out that the ingredients of a successful space program, which must include strong leadership, a sizable budget, available talents, and thorough training programs, said the academic.

“We have the budget, the talents, the expertize, and outstanding graduates from the best universities,” said Dr. Al-Jassar who pointed out that the lack of clear leadership was one of the main challenges for the establishment of a space agency.

Isn’t competition wonderful? One Arab country in the Middle East puts together a space program, and now others wish to follow. It is almost like night follows day. It has to happen.

One comment

Blue Origin gets its first orbital customer

9:24 pm

The competition heats up: Blue Origin today announced its first orbital contract for its New Glenn rocket, planned for a 2021 launch at the earliest.

The contract is with Eutelsat, which probably gets a bargain basement price for being New Glenn’s first paying customer. The rocket will also land its first stage vertically, on a barge, for reuse, just as SpaceX does with its Falcon 9.

New Glenn will be a big and very powerful rocket, capable of putting 45 tons into low Earth orbit, only slightly less than SpaceX’s Falcon Heavy.

Leave a comment

Dream Chaser flight tests upcoming

10:40 pm

The competition heats up: According to Sierra Nevada officials, drop tests and glide tests of the engineering test ship of its Dream Chaser cargo spacecraft will begin this spring.

The partially-assembled test craft arrived at the California test site, located on Edwards Air Force Base, on Jan. 25. Technicians are adding the ship’s V-shaped tail fins and other equipment before kicking off ground and flight tests in the coming months, according to Mark Sirangelo, corporate vice president of Sierra Nevada’s space systems division. “We’ll do a series of ground tests,” Sirangelo said in a recent interview. “That will include towing the vehicle down the runway, and that allows us to see how it stops and how it moves, but it also allows us to test all the sensors on the vehicle because we can get it up to a high enough speed where that will happen.”

…After the ground tests, Sirangelo said the Dream Chaser test article will perform “captive carry” tests suspended under a helicopter, using the exercises to verify the movements of the craft’s aerosurfaces and navigation instrumentation. “When that’s done, we’ll move into a series of flight tests, where it will be dropped for approach and landing like the shuttle Enterprise,” Sirangelo said, referring to the vehicle NASA used for landing demonstrations in the 1970s before the first full-up space shuttle mission.

This all sounds great, but Sierra Nevada has been promising these test flights now for more than a year. It is time they got started already.

One comment

Japan passes its own commercial space law

8:47 am

The competition heats up: Just as the U.S., Luxembourg, the United Kingdom, and others have recently passed laws of clarify and encourage the private commercial development of space, Japan now done so as well, enacting its own commercial space law.

Now that Japan has adopted its Space Activities Act, start-ups are not left wondering what agency they should contact but can go in advance to discuss their plans with officials at a specially designated counter in the Cabinet Office. The new Japanese law also provides government support in the provision of financial guarantees required by commercial space launch operators, such as by arranging third-party liability insurance coverage. The required coverage is calculated on the basis of the maximum probable loss estimated in line with the rocket type and the payload content; in the case of damages in excess of this coverage, the law provides that the government is to pay for the residual damages up to a certain limit. This is similar to arrangements that have been adopted in the United States and France, although the French government sets no limit on payments.

In addition, Japan’s Space Activities Act provides that the launch operator bears liability for accident damages even if they are due to problems in the payload. This channeling of liability would seem to be disadvantageous to launch operators, but it can be expected to enhance the competitive position of the Japanese companies providing this service, because it reassures customers around the world who are seeking to have their satellites put into orbit. France is the only other country that has adopted a similar provision.

The article is worth reading in that it provides a good overview of the history of space law since the 1960s, as well as the political background that helps explain why Japan has lagged behind in the commercialization of its space industry.

Leave a comment

Automated factory to build smallsats

8:35 am

The competition heats up: While this story focuses on the hiring of the former head of Stratolaunch by smallsat company York Space Systems, the real lead is how York is building an automated factory on a Denver college campus that will churn out smallsats.

Last week, York announced that it will partner with Metropolitan State University to open an automated manufacturing facility on the school’s Denver campus this year. The startup’s flagship product is the “S-Class” satellite platform, designed to carry payload masses up to 85 kilograms. Building 200 satellites per year would put the company at about a third the production rate of OneWeb Satellites, the ambitious joint venture of OneWeb and Airbus seeking to build three satellites a day for OneWeb’s planned constellation low-Earth-orbit communications satellites.

York has 33 satellite platforms requested through letters of intent and other agreements, about half of which are firm commitments to buy satellites once available, Dirk Wallinger, chief executive of the 10-person startup founded in early 2015, told SpaceNews.

York’s approach to satellite manufacturing is to have standardized spacecraft models essentially pre-built for prospective customers, who can then outfit their satellites as desired, Wallinger said.

For more than a half century, satellites have been hand-made, each unique and crafted by teams of engineers in an expensive and slow process. That is finally changing.

I should add that this hiring of Stratolaunch’s former president is another indication that Stratolaunch might be in trouble.

5 comments

New commercial proposals for launching almost 15,000 satellites

9:07 am

The competition heats up: New applications filed by SpaceX and OneWeb with the FCC propose augmenting both companies’ previously proposed satellite constellations and raising the number of total satellites to be launched to almost 15,000 total.

SpaceX has filed a new application with the Federal Communications Commission (FCC) for approval to launch a constellation of 7,518 satellites to provide communications in the little used V band. The system is in addition to another constellations of 4,425 satellites (plus orbital spares) SpaceX proposed in November that would operate in the Ku and Ka bands. In total, the two constellations would have 11,943 spacecraft plus spares. “When combined into a single, coordinated system, these ‘LEO’ and ‘VLEO’ constellations will enable SpaceX to provide robust broadband services on a full and continuous global basis,” SpaceX said in its application.

Competitor OneWeb has submitted a new application that would add an additional 2,000 satellites capable of operating in the V-band to its planned constellation of 720 satellites.

These are all smallsats, which means they can be launched in bunches. Still, even if they are launched in groups of 100, it will still take 150 launches to get them all into orbit. That is a lot of business for the launch industry.

Leave a comment

Blue Origin proposes unmanned lunar mission

9:12 am

The competition heats up: Blue Origin has proposed building for NASA an unmanned lunar mission to visit Shackleton Crater at the Moon’s south pole by 2020.

The Post says the company’s seven-page proposal, dated Jan. 4, has been circulating among NASA’s leadership and President Donald Trump’s transition team. It’s only one of several proposals aimed at turning the focus of exploration beyond Earth orbit to the moon and its environs during Trump’s term.

As described by the Post, the proposal seeks NASA’s support for sending a “Blue Moon” lander to Shackleton Crater near the moon’s south pole. The lander would be designed to carry up to 10,000 pounds of payload. It could be launched by Blue Origin’s New Glenn rocket, which is currently under development, or by other vehicles including NASA’s Space Launch System or United Launch Alliance’s Atlas 5. [emphasis mine]

The important take-away from this story is not the proposal to go to the Moon, but the proposal, as highlighted, that other rockets could do it instead of SLS. Though the proposal includes SLS as a possible launch vehicle, NASA’s giant rocket simply won’t be ready by 2020. That New Glenn might be illustrates again how much better private space does things, as this rocket is only now beginning development. If it is ready by 2020, which is what Blue Origin has been promising, it will have taken the company only about four years to build it, one fourth the time it is taking NASA to build SLS.

Leave a comment

Virgin Galactic spins off LauncherOne into its own division

9:03 am

The competition heats up: Virgin Galactic this week spun off its LauncherOne smallsat orbital rocket to form a new company called Virgin Orbit.

This split highlights the competition that actually existed within Virgin Galactic. Virgin Galactic’s SpaceShipTwo remains a very questionable design. Rather than have its problems suck the profits from LauncherOne, which has contracts and I firmly believe will fly first, the Virgin corporation has pulled it from Virgin Galactic so that the two rockets can succeed or fail on their own. In the end, I suspect now that Virgin Galactic will die and Virgin Orbit will succeed.

Leave a comment

China launches smallsat on new rocket

8:56 am

The competition heats up: China yesterday launched a small experimental satellite on new rocket, Kaituozhe-2 (KT-2).

The Xinhua news agency is identifying the new launch vehicle simply as ‘KT-2’. Other sources identify the new launcher as the Kaituo-2. Previously rumors expected that the new launch vehicle was the Kaituozhe-2A. The Kaituozhe-2/Kaituo-2 launch vehicle is a three-stage solid propellant launch vehicle developed by the “CASIC Forth Bureau”. The new launcher is capable of orbiting a 350 kg cargo to LEO or a 250 kg cargo to a 700 km high SSO.

KT-2 has similar capabilities to the Kuaizhou-1A launch vehicle, that was used for the first time on January 9, 2017. The KZ-1A is capable of orbiting a 300 kg satellite to LEO or a 200 kg payload to a 700km SSO. The other Chinese solid fuel launcher, the Long March 11 (Chang Zheng-11) rocket, is capable of orbiting a 750 kg to LEO or 350kg to a 700 km SSO.

With this fleet of small rockets, Chinese is now well positioned to grab market share in the emerging smallsat launch market. Their biggest problem remains the legal restrictions that prevent any American space technology from launching on Chinese rockets.

Leave a comment

SpaceX loses 89 smallsats due to delays

8:51 am

Spaceflight, a company that specializing in scheduling secondary payload launches for smallsat companies, this week pulled 89 satellites from SpaceX because of that company’s launch delays.

For more than a year, Seattle-based Spaceflight has been waiting to launch an array of 89 miniaturized satellites aboard a SpaceX Falcon 9 rocket and deploy them in orbit from its innovative SHERPA carrier.

Now the launch logistics company isn’t waiting any longer. All 89 satellites have been rebooked due to schedule concerns, Spaceflight’s president, Curt Blake, reported today in a blog posting. “We found each of our customers an alternative launch that was within the same time frame,” Blake wrote. “It took a huge effort, but within two weeks, the team hustled to have all customers who wanted to be rebooked confirmed on other launches!”

The SHERPA carrier had been slated as a secondary payload on the launch of Taiwan’s Formosat-5 satellite. It was put on SpaceX’s manifest since 2015, but the launch has been repeatedly delayed, in part due to the Falcon 9 rocket mishaps that occurred in mid-2015 and last September.

What is good about this is that the competition in the launch industry is now robust enough that these smallsats can find alternatives, and do it quickly. As good as SpaceX might be at some things, if the company doesn’s start fulfilling its promised launch schedule it will start to bleed customers more and more.

Unfortunately, the article doesn’t say which launch companies have now gotten this business. If I had to guess, I would bet that India got the contracts, based on their recent PSLV launch that put 103 smallsats into orbit. In arranging that launch ISRO had been very mobile, adding new smallsats to it quickly and very late in the launch schedule.

2 comments

China completes construction of space station core module

10:21 pm

The competition heats up: China has completed the construction of the core module of its full size space station, now set to launch in 2018.

Tianhe-1, the first of three 20-tonne space station modules, was completed by the end of 2016 and has entered a testing phase, according to Bao Weimin of the China Aerospace Science and Technology Corporation (CASC). Tianhe-1 will launch from Wenchang on a new Long March 5 heavy-lift rocket sometime in 2018, which was developed specifically to allow China to put large space station modules into low Earth orbit.

The image of the module at the link is remarkable in its resemblance to the core module of Russia’s Mir station, launched in 1986.

Leave a comment

Bigelow advocates his space stations for lunar missions

11:08 am

The competition heats up: Robert Bigelow today advocated using his privately built inflatable space station modules as a tool for launching future American lunar missions.

Bigelow’s company is eager to put a space station depot in lunar orbit, from which such activities and others can be initiated, as well as support onboard research. “We do not have the technologies, and there is zero business case for Mars. We do have a business case for the moon. And that’s why the moon absolutely makes the best sense,” Bigelow said. “And we can do the lunar activities far sooner than we can with Mars, which stretches out to, NASA’s views are Mars may be in the 2040s.”

His “New Space” company, Bigelow Aerospace of Las Vegas, designs space habitats, including a fully self-contained space station with 330 cubic meters of living and working space, which he said is ready for a lower-Earth orbit or, in about three years given the expected advancements in rocketry, for lunar orbit.

The key statement above is the comparison between lunar missions and Mars missions, at this time. The Moon has the chance to be profitable in the near future. Mars does not. If you had money to invest (even if it is taxpayer dollars) which would you invest it in?

2 comments

China considering multi-asteroid mission

7:16 pm

The competition heats up: China is considering an unmanned probe to visit three different asteroids, including Apophis.

According to details that have previously emerged, one proposal is for a launch via Long March 3B rocket to take place in early 2022, with rendezvous with Apophis a year later and spend 220 days in orbit.

Then the probe would depart Apophis for a flyby of 2002 EX11 in 2025, and finally landing on 1996 FG3 in 2027, where it would, in Ji’s words, “conduct in-situ sampling analysis on the surface”.

The proposal is only in the design stage, but it should definitely be taken seriously. China is committing more and more of its resources to its space program, as that program is giving that government a big payoff in international recognition.

Posted in the airport in Dallas, where I have to wait an extra three hours because American Airlines practically shut the door to my connecting flight in my face. Their flight from Belize was late, and then Customs and the TSA conspired to create giant lines for no reason. Even though I had a friend at the gate with whom we were in contact by text who could tell them I was only a minute away, they shut the door anyway.

I have avoided American for more than a decade because they did something as obnoxious to me before. I think it might be a decade before I fly them again.

2 comments

Heading Home

10:22 pm

Today we completed our last caving trip in Belize. I and many of the expedition’s participants head home tomorrow.

Because our cave trips take so much time, I have not had time to post anything these last few days. I will try to post tomorrow during my return home, but expect full posting to resume on Thursday.

Also, though I will comment then in greater length about SpaceX’s announcement on Monday that they plan on sending two tourists around the Moon by 2018, I want to note here that this announcement is clearly Elon Musk’s response to the effort by NASA to delay the launch of commercial crew because of so-called safety issues so that SLS/Orion might fly first. Musk is telling the world that NASA’s safety concerns are crap (to which I generally agree) and he intends to prove this with his own lunar manned mission.

11 comments

New auto-destruct system to increase launch rate

7:12 am

The competition heats up: A new auto-destruct system operating by computer, using GPS, and installed on each rocket should allow the launch rate in Florida to ramp up significantly.

Up until now it took several days to reconfigure the ground-based radar facilities. This system, first used on the most recent Falcon 9 launch, does not require this. It also involves fewer people to operate it. They expect that they will soon be able to launch up to 48 missions per year, some on the same day.

6 comments

India’s government a barrier to private space

8:47 pm

Even as India and its space agency show themselves to increasingly be a major player in the worldwide aerospace market, it appears that India’s governmental policy on private satellite communications is acting as a barrier that blocks the growth of a commercial space industry.

India’s current satcom policy, first rolled out in 1997 and then updated in 2000, is clearly outdated. A senior ISRO official who attended the ORF event (but declined to be identified) pointed out that all the existing satcom policy says is Indian satellite companies will be given preference over foreign multinational companies. “How does this preference play out? If the department of space is worried about national security concerns, they should lay down clear guidelines for security compliance by foreign satellites. The existing policy doesn’t talk about this, which inevitably leaves it to ISRO, DoS and Antrix’s discretion,” the official told The Wire.

And this discretion has held up multiple applications for satellite manufacturing and foreign direct investment over the last decade. Hughes’ Krishna is particularly frustrated over this. “If a company submits an application for satellite broadband services in India, irrespective of where the satellites will be made, it needs a specific timeline on when it will hear back from ISRO or the DoS. Will it be two years, three years or five years? It is difficult to line up future investments if speedy clearance is not given,” Krishna said.

Essentially, India’s Department of Space (DoS) and its space agency ISRO control all licensing, and have been using that power to delay or deny the issuing of any private satellite licenses, since such efforts are in competition with these government agencies.

The situation here is very similar to what existed in the U.S. with NASA for most of the last half of the 20th century. The agency did not want private launch companies competing with its own manned programs, and diligently worked to block their efforts. If you wanted to be part of manned space, you did what NASA told you to do and you built what they told you to build. It wasn’t until the rise of the commercial space programs to launch cargo to ISS that NASA’s grip on manned space was finally broken.

India now faces the same problem. ISRO has done an excellent job, as NASA did in its early years, in getting India’s space industry started. It now needs to back off, stop running things and simply be a customer of these competing private companies, letting freedom do the job instead of government dictate. The question now is whether the Indian government will allow this to happen. There are many vested interests there that will resist.

One comment

Dragon safely berths at ISS one day late

8:12 pm

As expected, SpaceX’s Dragon freighter safely berthed at ISS today, one day late.

French astronaut Thomas Pesquet steered a 58-foot robotic arm to snare the unmanned Dragon at 5:44 a.m. EST, as the two spacecraft flew 250 miles above northwestern Australia. “Looks like we got a great capture,” radioed Shane Kimbrough, commander of the six-person Expedition 50 crew, to flight controllers in Houston.

The freighter will remain docked at ISS for a month while they off load it and load it with experiments being sent home.

Leave a comment

NASA signs technology development contracts with eight companies

10:23 pm

The competition heats up: NASA today announced the award of contracts to eight small companies to develop new technologies for the advancement of smallsat launch capabilities.

The contracts cover a wide range of launch concepts, from testing new imaging technology for spotting asteroids to new rocket engine development to new rocket designs. The key component however of all these contracts is this:

These fixed-priced contracts include milestone payments tied to technical progress and require a minimum 25 percent industry contribution, though all awards are contingent on the availability of appropriated funding. The contracts are worth a combined total of approximately $17 million, and each have an approximate two-year performance period culminating in a small spacecraft orbital demonstration mission or the maturation of small launch vehicle technologies.

In other words, the companies have to provide some of the funding, since the technology being developed will benefit them. They also will only be paid once they meet certain milestones, and any cost overages will be their responsibility. The result? The U.S. has the chance of giving birth to eight new space companies, all with cutting edge technology that can compete in the new launch market. And the country gets this for a measly $17 million.

One comment
1 … 191 192 193 194 195 … 279