Tag: engineering

India’s government proposes ending satellite competition

11:19 am

The competition cools down? A regulatory agency in India is proposing eliminating commercial satellite competition and consolidating all satellite television broadcasts onto a handful of government owned and launched satellites.

Indian Prime Minister Narendra Modi’s “Make in India” campaign seeks to promote India’s domestic industrial base. The Telecom Regulatory Authority of India (TRAI) on May 23 published what it calls a “pre-consultation paper” that points to the savings satellite-television broadcasters could realize if they stopped beaming the same programs on different satellites, and instead banded together on one or two spacecraft.

As of March 2015, the latest period for which TRAI has produced figures, there were 76 million DTH subscribers in India, of which 41.1 million were considered active. These subscribers received programming from six pay TV DTH providers and one free-to-air satellite broadcast service. TRAI said multiple DTH providers are broadcasting the same channels even as they compete with each other for subscribers. “There is scope for better utilization of available infrastructure,” TRAI said. “There is a need to examine technical and commercial issues in sharing of infrastructure such as satellite transponders, Earth station facilities….”

There is also this important component to the story:

India has been one of the biggest satellite-DTH growth markets in recent years, but one in which barriers to entry by foreigners remain high. Under Indian law, television broadcasters seeking operating licenses are given preferential treatment if they use India’s own Insat telecommunications satellites, owned and operated by the Indian Space Research Organization (ISRO). Non-Indian satellites are permitted if ISRO’s Insat system does not have sufficient capacity to meet programmers’ demand. This has been the case for years as ISRO has been unable to keep up with the market for satellite television.

In other words, the commercial satellite business in India is doing great, so let’s muck it up by having one government agency create a monopoly for another government agency.

The United States tried this in the 1960s when it banned private companies from launching commercial communications satellites and instead required all such satellites to be built by the government-managed Comsat corporation. The result in the U.S. was a squelched satellite and launch industry that did not recover for more than a decade, and only did so when the Nixon administration forced a change in the rules.

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Masten unveils two new reusable suborbital rockets

9:40 am

The competition heats up: Masten Space Systems has unveiled two new small reusable suborbital rockets, designed to be used for short research flights.

The new unmanned rockets can take off and land vertically, can be reused in a short amount of time, and and hover in mid-air. The approximately 15-foot rockets are a lot smaller than the reusable rockets that Blue Origin and SpaceX are launching, landing, and (in Blue Origin’s case) already reusing. They can’t travel as high or carry nearly as heavy of a payload, but they could prove to be useful for gathering science data in suborbital space.

The link has a short video showing the rockets in operation. Very impressive, even if small.

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Elon Musk sends a tweet and the world listens

8:56 am

The competition heats up: Yesterday Elon Musk sent out a tweet that simply repeated something his company has been saying now for several months — but with one slight additional detail — and the press went gaga.

What Musk said was that SpaceX hopes to reuse one of its used Falcon 9 first stages by September or October. Previously they had merely said they were aiming to do it before the end of the year. Since SES has offered one of its satellites for the job, and since it has had for months two such satellites scheduled for launch by SpaceX in September and October, this announcement by Musk is not really much of a surprise. Yet, the tweet was enough for all of the following mainstream news sources to gin up news-breaking headlines:

I am not really complaining. What I am really noting is how serious the world now takes what Musk and SpaceX are doing. They say they plan to do something new and revolutionary, and people sit up and take notice. And the reasons are twofold. First, everything they have said they were going to do, they have done. Musk’s announcement has to be taken seriously. Second, Musk owns SpaceX, and does not really need anyone’s permission to do this. He isn’t in a negotiation with numerous other players, as has been the case with NASA and its projects for the past half century. We know that if he wants to try something, the only things that could stop him are lack of capital and lack of good engineering, neither of which are an obstacle in this case.

So, be prepared for the first relaunch of a rocket’s first stage sometime this fall. And don’t be surprised if that isn’t the only new thing SpaceX accomplishes at the time.

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FAA warns public of military GPS jamming tests

9:44 am

The FAA has issued a warning that GPS at high elevations may be unreliable during jamming tests being conducted by the U.S. military during June.

The FAA issued an advisory warning pilots on Saturday that global positioning systems (GPS) could be unreliable during six different days this month, primarily in the Southwestern United States. On June 7, 9, 21, 23, 28, and 30th the GPS interference testing will be taking place between 9:30am and 3:30pm Pacific time. But if you’re on the ground, you probably won’t notice interference.

The testing will be centered on China Lake, California—home to the Navy’s 1.1 million acre Naval Air Weapons Center in the Mojave Desert. The potentially lost signals will stretch hundreds of miles in each direction and will affect various types of GPS, reaching the furthest at higher altitudes. But the jamming will only affect aircraft above 5,000 feet. As you can see from the FAA map below, the jamming will almost reach the California-Oregon border at 40,000 feet above sea level and 505 nautical miles at its greatest range.

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Elon Musk to meet with Defense Secretary

9:25 am

The competition heats up: A private meeting to discuss modern innovation between Elon Musk and Defense Secretary Ash Carter has been scheduled for Wednesday.

Ash Carter, the U.S. Secretary of Defense, and Elon Musk, SpaceX’s founder and chief executive, will discuss innovation June 8 in a private meeting, the Pentagon’s top spokesman said. “Elon Musk is one of the most innovative minds in this country and the secretary, as you know, has been reaching out to a number of members of the technology community to get their ideas, their feedback, find out what’s going on in the world of innovation,” Peter Cook, the Pentagon’s press secretary said during a June 6 briefing. “The secretary’s had a number of meetings with business leaders and innovation leaders in particular out in Silicon Valley, other parts of the country, and I think that’s his goal here: to hear directly from Elon Musk on some of these issues.”

The meeting is private, which means an agenda or discussion items are generally not released. More details were not immediately available.

I am sure about one thing: This meeting is going to make the corporate board of ULA very nervous.

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The history of the stopwatch

9:20 am

Link here. The most fascinating part of this story is the recent discovery of the very first stopwatch, previously unknown, built in 1816, and remarkably similar to the standard analog stopwatches used for decades until the arrival of digital equipment.

The layout of the compteur also makes one suspect it ended up in 1816 via a time machine. Instead of inking paper, it has a silvered and frosted metal dial dominated by a large fraction-second hand like later stopwatches, and three subdials for marking hours, minutes, and whole seconds Along with this, the stopwatch has a button at 12 o’clock to start and stop it, plus an 11 o’clock button to instantly reset the dials. This is a feature common to modern stopwatches and one not thought to be invented until 1862 by Adolphe Nicole.

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LISA Pathfinder proves space-based gravity wave detection technology

8:43 am

Engineers have announced that the gravity wave detection technology being tested in orbit by Europe’s LISA Pathfinder works.

To show that the necessary sensitivity is possible, LISA Pathfinder measures the distance between two masses, both of which are inside the spacecraft. “We’ve shrunk the arm of a large gravitational wave antenna to 35 centimeters so we could show it works properly,” Paul McNamara, LISA Pathfinder project scientist, told the press conference.

LISA Pathfinder was launched in December 2015 to a spot 1.5 million kilometers from Earth. When its test masses where first released to float free in February, “the relief was unbelievable,” McNamara says. Science operations began on 1 March and on that first day the team was able to measure distance variations between the masses much smaller than LISA Pathfinder’s mission requirements, Stefano Vitale, the mission’s principle investigator, told reporters. After a month, the variations were even smaller, “very close to [eLISA] requirements,” he says.

They now hope to launch an array of at least three such spacecraft by the mid-2030s.

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Russia delays next manned Soyuz flight

5:45 pm

Russia has confirmed previous reports and has officially delayed the next manned Soyuz launch to ISS from June 24 to July 7.

They remain vague about the issue causing the delay, this time only saying they want more time to test software. Previous reports suggested the issue was with the capsule’s control thrusters.

Meanwhile, no word on whether they have figured out why the upper stage on the previous Soyuz rocket launch shut down prematurely.

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SpaceX lobbies Texas government for spaceport backing

1:53 pm

The competition heats up: In testimony today before the Texas legislature, a SpaceX official called for more government funding to support the company’s spaceport construction in Boca Chica near Brownsville, Texas.

At a recent joint legislative committee hearing held at UT-Rio Grande Valley in Brownsville, Caryn Schenewerk, senior counsel and director of governmental affairs for SpaceX, pointed out that zero dollars were appropriated to the Texas Spaceport Trust Fund during last year’s legislative session. In contrast, Schenewerk said, Florida commits $20 million a year to its spaceport infrastructure fund.

“One of the things I want to highlight for you is that unfortunately, the spaceport trust fund was not funded in the 84th Legislature and we will certainly be advocating for it to be considered by the 85th and for it to be part of the budget in the 85th Legislature,” Schenewerk testified. “By contrast, Florida consistently funds its space infrastructure fund to a tune of $20 million a year. Those infrastructure matching grants go to exactly the kind of activities that we are undertaking at Boca Chica. They are public-private partnerships for investing specifically in what is so costly an undertaking, the infrastructure.”

Obviously, SpaceX’s spaceport is going to require an increased financial commitment by the state government to build and maintain the increased infrastructure that such large operations require. At the same time, SpaceX doesn’t need a handout. They shouldn’t expect the taxpayers to pay for their private spaceport.

The article does provide some updated information about the spaceport’s construction status. It looks like they are aiming for a 2018 launch date.

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Titan over Saturn’s rings

9:35 am

Titan over Saturn's rings

Cool image time! The picture on the right, taken on January 26, 2016 by Cassini and reduced and cropped to show here, captures Titan above Saturn’s rings, which are themselves partly obscured by the shadow of Saturn (unseen on the right) that falls across them.

Make sure you go to look at the full image. This is the kind of vista that artists in the 1950s imagined we’d see once we began to explore the solar system.

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Astronauts enter privately built BEAM module

8:59 am

Led by American Jeff Williams, two astronauts opened the hatch and entered Bigelow’s BEAM inflatable module on ISS today.

Williams officially opened the hatch at 08:47 UTC. Along with Russian cosmonaut Oleg Skripochka, Williams entered BEAM for the first time to collect an air sample and begin downloading data from sensors on the dynamics of BEAM’s expansion. The astronaut reported that the interior of BEAM looks “pristine”. However, he added the temperature was on the cool side – with Houston adding they recorded 44F as the temperature at bulkhead – but no condensation was visible. He then took air samples, as is the procedure for entering a new module.

They will install interior sensors over the next two days, and then shut the hatch. The module will then remain closed for most of its planned two year stay on ISS to test its operation in space.

The article also includes some nice details about the possible uses of Bigelow’s much larger B330 modules, two of which are under construction right now.

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Why I won’t use Windows

9:05 am

A remote wildlife project in central Africa has been significantly hampered by the unwanted Windows 10 forced upgrades.

The Chinko Project manages roughly 17,600 square kilometres (6,795 square miles) of rainforest and savannah in the east of the CAR, near the border with South Sudan. Money is tight, and so is internet bandwidth. So the staff was more than a little displeased when one of the donated laptops the team uses began upgrading to Windows 10 automatically, pulling in gigabytes of data over a radio link.

And it’s not just bandwidth bills they have to worry about. “If a forced upgrade happened and crashed our PCs while in the middle of coordinating rangers under fire from armed militarized poachers, blood could literally be on Microsoft’s hands,” said one member of the team. “I just came here recently to act as their pilot but have IT skills as well. The guy who set these PCs up didn’t know how to prevent it, or set a metered connection. I am completely livid.”

As I’ve noted before, I have been using Linux for ten years. Though there have been some areas of annoyance (no software is perfect), I have not found myself limited in what I need to do, in any important matter. If you’ve got a spare older computer that you’re not using right now, install Linux on it and play with it. You will soon find that it does everything a Windows machine does, without the crap.

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NASA signs Blue Origin for suborbital missions

9:53 am

The competition heats up: NASA has contracted with Blue Origin to use its New Shepard suborbital spacecraft for suborbital research missions.

The company hasn’t actually won any contracts, but is now certified to bid on any of NASA’s suborbital research work, as are Masten Space Systems, Near Space Corporation, UP Aerospace, Virgin Galactic, and World View Enterprise. The difference is that of all these companies, only Blue Origin has a ship built and already flying.

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Why the Goldwater Institute sued to block Tucson space deal

9:39 am

Link here.

The fundamental reason is that the Institute believes that, in signing its deal with World View to build its headquarters and launch site in Tucson, Pima County violated several laws as well as Arizona’s constitution. We are supposed to be a nation of laws, and thus government officials should not be allowed to violate those laws, even if they have the best of intentions.

I must say that, though I have no doubt that putting World Views space tourism balloon company in Tucson would be financially good for the city and Arizona, allowing elected officials to break the law to make deals with private companies is a very bad way to do it, and will in the end lead to far worse consequences.

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Falcon 9 first stage returns to port, with a noticable list

1:02 am

The competition heats up: The first stage from SpaceX’s most recent Falcon 9 launch returned to port today, showing a visible lean.

Musk said that the stage was probably OK, but there was some risk of tipping. This was due to the fact that the contingency “crush core” was used up. He described on Twitter that the crush core was an aluminum honeycomb for energy absorption in the telescoping actuator. Once the stage was within sight of land, it became clear that the booster had a noticeable lean to it, due to the aforementioned contingency crush core being used up. The ramifications of this are still unclear, but Musk’s tweet implied that the crush core is easily replaceable.

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Why I use Linux, part 2

9:20 am

Microsoft has changed its options so that Windows users will no longer be able to refuse an upgrade to Windows 10.

Microsoft’s Windows 10 nagware campaign has entered a new phase, with all options to evade or escape an upgrade finally blocked.

Recently, Microsoft’s policy had been to throw up a dialogue box asking you whether you wanted to install Windows 10. If you clicked the red “X” to close the box – the tried-and-tested way to make dialogue boxes vanish without agreeing to do anything – Microsoft began taking that as permission for the upgrade to go ahead.

Now Microsoft is changing gears. It has eliminated the option to re-schedule a chosen upgrade time once you’ve confirmed it while also removing the red “X” close option from the screen.

The moral dishonesty here is vile, to put it mildly. Microsoft is enforcing these upgrades by offering a series of sneaky bait-and-switch options that are intentionally designed to fool the user into doing something the user doesn’t want to do. And the company is doing this while still claiming that it isn’t forcing anything on anyone.

When you find yourself dealing with a lying snake-oil salesman, you only have yourself to blame if you continue that relationship and get screwed.

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Billionaires propose big space plans

9:00 am

At separate interviews given during a media conference held this week in California, Elon Musk and Jeff Bezos each expressed their thoughts about what they hope to accomplish in space over the next few decades.

First, Jeff Bezos outlined his belief that, in order to protect the Earth, humanity is going to have to eventually move its heavy manufacturing off the planet and into space. He thought colonizing the planets was a cool idea, but his focus remained with Earth, and using space as a way to protect it.

Musk meanwhile revealed his company’s long range plans for Mars, including their firm intention to send a Dragon capsule to the red planet during every future launch opportunity, beginning with 2018. Each mission will provide information needed to improve and develop their engineering so that they can hopefully send humans there by 2024.

A realistic appraisal of both men’s proposals will quickly recognize that they are probably overly optimistic. Bezos might be right that we should move our heavy industries into space, but he is not realistic to think this can happen soon, or is even possible. Musk’s company SpaceX might be laying the groundwork for the eventual colonization of Mars, but to think it will begin happening by 2024 is unrealistic.

Still, what both men are proposing are things that they are personally helping to make happen. Neither man has to get anyone else’s permission or approval to push these dreams. All they need to do is make sure the products they are building for accomplishing these tasks can also make money by providing services to others. Since this is exactly what both men are doing, they will likely achieve far more than anyone can imagine, even if the specific proposals they are putting forth now do not happen in their lifetimes.

This bright and very possible future is far different than the powerpoint proposals that NASA and big government have offered to us over and over again for the past four decades. Those ideas, while also ambitious, could never happen because they were dependent on the approval of too many other players, Congress, the public, the press, the bureaucracy. They were not founded on profits, so they became a drain on the economy instead of a source of wealth. The result was that we have gone nowhere and developed little new space technology in the years since the last Apollo landing.

Only now, with our renewed reliance on capitalism and profits, are we finally beginning to see the dreams expressed in those NASA powerpoint proposals coming to life. And it isn’t the government that is making them happen, but free individuals, with big dreams and the will to pursue them.

Expect there to be privately funded manned missions to Mars in the next decade. And expect there to be factories in orbit, far sooner than anyone expects.

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Manned Soyuz launch delayed

3:50 pm

More Russian quality control issues? The next manned launch to ISS has been delayed for a week because of an issue with the capsule’s control thrusters.

The article is lacking in any details, though it appears that the Soyuz capsule’s system for controlling its roll is the source of the problem. This issue, on top of the fact that the most recent Soyuz rocket launch last week had an unexplained premature engine shutdown, should make everyone a bit nervous about the reliability and safety of the Russian manned system.

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Longest and deepest rail tunnel opens

9:17 am

After 17 years of construction, the world’s longest and deepest rail tunnel has opened today in Switzerland.

If you take into account the two main tubes that comprise the Gotthard Base Tunnel and its various shafts, cross passages and access tunnels, it actually has 152 km (94 mi) of tunnels in total. It is also said to have virtually no gradients.

The initial idea for the tunnel was conceived 68 years ago, but the plans were redrawn on a number of occasions. Once construction finally commenced, there were 2,400 workers on site at peak times. Nine workers also lost their lives during the build.

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Airbus Safran begin Ariane 6 engine tests

9:18 pm

The competition heats up: In its effort to build Ariane 6 by 2020, Airbus Safran has begun testing of that rocket’s upper stage Vinci engine.

This test phase, set to last until September, will include running the engine repeatedly as well as for as long as 1,000 seconds. Once they have determined the engine’s design, behavior, and overall thrust, they will be able to design and build the upper stage.

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Orbital ATK successfully completes Antares test fire

9:07 pm

The competition heats up: Orbital ATK today successfully completed a 30 second test fire of the first stage of its redesigned Antares rocket, using new Russian rocket engines.

The primary goal of the test was to verify the functionality of the integrated first stage, including new engines, modified Stage 1 core, avionics, thrust vector control and pad fueling systems in an operational environment. During the test, a number of operational milestones were met including full propellant loading sequence, launch countdown and engine ignition and shut down commands, as well as multiple throttle settings including full engine power. The test also validated the launch pad’s operation, including propellant tanking and the use of the water deluge system to protect the pad from damage and for noise suppression.

Orbital ATK will now purge and clean the engines of residual propellants and return the first stage used in this test to the Horizontal Integration Facility for full reconditioning prior to its use on the OA-7 mission slated for later this year. The Orbital ATK team will continue to prepare the Antares rocket that will launch the OA-5 mission, which is in the final stages of integration, systems testing and check-out in preparation for launch this summer.

They hope to launch a Cygnus capsule on Antares around July 6.

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Rosetta almost lost during weekend

8:55 am

Because Rosetta’s star tracker became confused by dust particles, the spacecraft lost contact with Earth, went into safe mode, and required the entire weekend for engineers to regain control.

“We lost contact with the spacecraft on Saturday evening for nearly 24 hours,” says Patrick Martin, ESA’s Rosetta mission manager. “Preliminary analysis by our flight dynamics team suggests that the star trackers locked on to a false star – that is, they were confused by comet dust close to the comet, as has been experienced before in the mission.” This led to spacecraft pointing errors, which triggered the safe mode. Unfortunately the star trackers then got hung in a particular sub mode requiring specific action from Earth to recover the spacecraft.

“It was an extremely dramatic weekend,” says Sylvain Lodiot, ESA’s Rosetta spacecraft operations manager.”

The spacecraft has been diving to within only a few miles of the surface of Comet 67P/C-G, which means it is flying close to the comet’s coma. The increased dust in that region has confused the star tracker in the past, but this appears to have been the most serious event yet.

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The B-1 Lancer Bomber

6:01 pm

An evening pause: One reason we have a Memorial Day is to honor those who have died to keep us free. We also remember them to remind us that the sacrifice was necessary.

I think it is long past time to repeat the same effort, no matter the cost, and use this plane’s payload a lot more than we are. There are people in the Middle East who are gleefully killing people for the sake of power. We should no longer tolerate them.

Hat tip Rocco.

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Premature engine cutoff on Soyuz upper stage

9:20 am

During a successful Soyuz rocket launch of a Russian Glonass GPS satellite last week, it appears that the engine for the rocket’s upper stage cut off prematurely, requiring the third stage to fire longer to get the satellite into its proper orbit.

This scenario is almost identical to what happened with the most recent Atlas 5 launch. There is as yet no word on why it happened, or if the Russians plan to investigate it.

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XCOR layoffs, ending Lynx?

8:25 am

In the heat of competition: XCOR has laid off the staff working on its Lynx suborbital spaceplane.

The company has apparently decided to focus on those things that are generating revenues. Lynx was years behind schedule, unfinished with no prospect for profit, as it was only a prototype, not the spaceplane that could be used to fly tourists.

As much as I am not surprised (I have been skeptical of XCOR’s Lynx suborbital project since they announced it in 2008), I am saddened, because I really did want them to succeed.

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