Satellites

FCC approval of Europe’s Galileo satellite signals may give your phone’s GPS a boost

Posted by | FCC, Gadgets, galileo, Government, gps, Mobile, Satellites, Space | No Comments

The FCC’s space-focused meeting today had actions taken on SpaceX satellites and orbital debris reduction, but the decision most likely to affect users has to do with Galileo . No, not the astronomer — the global positioning satellite constellation put in place by the E.U. over the last few years. It’s now legal for U.S. phones to use, and a simple software update could soon give your GPS signal a major bump.

Galileo is one of several successors to the Global Positioning System that’s been in use since the ’90s. But because it is U.S.-managed and was for a long time artificially limited in accuracy to everyone but U.S. military, it should come as no surprise that European, Russian and Chinese authorities would want their own solutions. Russia’s GLONASS is operational and China is hard at work getting its BeiDou system online.

The E.U.’s answer to GPS was Galileo, and the 26 (out of 30 planned) satellites making up the constellation offer improved accuracy and other services, such as altitude positioning. Test satellites went up as early as 2005, but it wasn’t until 2016 that it began actually offering location services.

A Galileo satellite launch earlier this year.

Devices already existed that would take advantage of Galileo signals — all the way back to the iPhone 6s, the Samsung Galaxy S7 and many others from that era forward. It just depends on the wireless chip inside the phone or navigation unit, and it’s pretty much standard now. (There’s a partial list of smartphones supporting Galileo here.)

When a company sells a new phone, it’s much easier to just make a couple million of the same thing rather than make tiny changes like using a wireless chipset in U.S. models that doesn’t support Galileo. The trade-off in savings versus complexity of manufacturing and distribution just isn’t worthwhile.

The thing is, American phones couldn’t use Galileo because the FCC has regulations against having ground stations being in contact with foreign satellites. Which is exactly what using Galileo positioning is, though of course it’s nothing sinister.

If you’re in the U.S., then, your phone likely has the capability to use Galileo but it has been disabled in software. The FCC decision today lets device makers change that, and the result could be much-improved location services. (One band not very compatible with existing U.S. navigation services has been held back, but two of the three are now available.)

Interestingly enough, however, your phone may already be using Galileo without your or the FCC’s knowledge. Because the capability is behind a software lock, it’s possible that a user could install an app or service bringing it into use. Perhaps you travel to Europe a lot and use a French app store and navigation app designed to work with Galileo and it unlocked the bands. There’d be nothing wrong with that.

Or perhaps you installed a custom ROM that included the ability to check the Galileo signal. That’s technically illegal, but the thing is there’s basically no way for anyone to tell! The way these systems work, all you’d be doing is receiving a signal illegally that your phone already supports and that’s already hitting its antennas every second — so who’s going to report you?

It’s unlikely that phone makers have secretly enabled the Galileo frequencies on U.S. models, but as Commissioner Jessica Rosenworcel pointed out in a statement accompanying the FCC action, that doesn’t mean it isn’t happening:

If you read the record in this proceeding and others like it, it becomes clear that many devices in the United States are already operating with foreign signals. But nowhere in our record is there a good picture of how many devices in this country are interacting with these foreign satellite systems, what it means for compliance with our rules, and what it means for the security of our systems. We should change that. Technology has gotten ahead of our approval policies and it’s time for a true-up.

She isn’t suggesting a crackdown — this is about regulation lagging behind consumer tech. Still, it is a little worrying that the FCC basically has no idea, and no way to find out, how many devices are illicitly tuning in to Galileo signals.

Expect an update to roll out to your phone sometime soon — Galileo signals will be of serious benefit to any location-based app, and to public services like 911, which are now officially allowed to use the more accurate service to determine location.

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SpaceX’s Starlink aims to put over a thousand of its communications satellites in super-low orbit

Posted by | Gadgets, hardware, Satellites, Space, SpaceX, starlink | No Comments

SpaceX’s planned communication satellite constellation, known as Starlink, will now be targeting a much lower orbit than originally planned, at least for over a thousand of the satellites, the company revealed in an FCC filing. The move should help mitigate orbital debris and provide better signal for the company’s terrestrial users as well.

Starlink plans to put 1,584 satellites — about a third of the 4,409 the company aims to launch — in an orbit just 550 kilometers about the surface of the Earth. For comparison, many communications satellites are in orbits more than twice as high, and geosynchronous orbits are more than 20 times farther out (around 36,000 miles).

At that distance orbits decay quickly, falling into the atmosphere and burning up after a handful of years. But SpaceX isn’t daunted; in fact, it writes in its application, lower orbits offer “several attractive features both during nominal operation and in the unlikely event something goes wrong.”

In the first place, orbital debris problems are naturally mitigated by the fact that anything in that low orbit will fall to Earth quickly instead of cluttering up the orbit. Second, it should shorten the amount of time it takes to send and receive a signal from the satellites — ping time could be as low as 15 milliseconds, the company estimated. And 500 fewer kilometers means there will be less spreading for beam-based communications, as well.

The satellites will have to do more work to stay at their optimal altitude, as atmospheric drag will be higher, and each one will be able to see and serve less of the planet. But with thousands working together, that should be manageable.

The decision was informed by experimental data from the “Tintin” test satellites the company launched earlier this year. “SpaceX has learned to mitigate the disadvantages of operating at a lower altitude and still reap the well-known and significant benefits discussed above,” it wrote.

This change could lead to competitive advantages when satellite communications are more widely used, but it will also likely lead to a more intensive upkeep operation as Starlink birds keep dropping out of the air. Fortunately a third benefit of the lower orbit is that it’s easier to reach, though probably not so much easier that the company breaks even.

Starlink is aiming for the first real launches of its systems early next year, though that timeline may be a little too ambitious. But SpaceX can do ambitious.

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EarthNow promises real-time views of the whole planet from a new satellite constellation

Posted by | accelerator, earthnow, Gadgets, Intellectual Ventures, OneWeb, Satellites, Space, Startups | No Comments

A new space imaging startup called EarthNow aims to provide not just pictures of the planet on demand, but real-time video anywhere a client desires. Its ambition is matched only by its pedigree: Bill Gates, Intellectual Ventures, Airbus, SoftBank and OneWeb founder Greg Wyler are all backing the play.

Its promise is a constellation of satellites that will provide video of anywhere on Earth with latency of about a second. You won’t have to wait for a satellite to come into range, or worry about leaving range; at least one will be able to view any area at any given time, so they can pass off the monitoring task to the next satellite over if necessary.

Initially aimed at “high value enterprise and government customers,” EarthNow lists things like storm monitoring, illegal fishing vessels (or even pirates), forest fires, whale tracking, watching conflicts in real time and more. Space imaging is turning into quite a crowded field — if all these constellations actually launch, anyway.

The company is in the earliest stages right now, having just been spun out from years of work by founder and CEO Russell Hannigan at Intellectual Ventures under the Invention Science Fund. Early enough, in fact, that there’s no real timeline for prototyping or testing. But it’s not just pie in the sky.

Wyler’s OneWeb connection means EarthNow will be built on a massively upgraded version of that company’s satellite platform. Details are few and far between, but the press release promises that “Each satellite is equipped with an unprecedented amount of onboard processing power, including more CPU cores than all other commercial satellites combined.”

Presumably a large portion of that will be video processing and compression hardware, since they’ll want to minimize bandwidth and latency but don’t want to skimp on quality. Efficiency is important, too; satellites have extremely limited power, so running multiple off-the-shelf GPUs with standard compression methods probably isn’t a good idea. Real-time, continuous video from orbit (as opposed to near-real-time stills or clips) is as much a software problem as it is hardware.

Machine learning also figures in, of course: the company plans to do onboard analysis of the imagery, though to what extent isn’t clear. It really makes more sense to me to do this on the ground, but perhaps a first pass by the satellite’s hardware will help move things along.

Airbus will do its part by actually producing the satellites, in Toulouse and Florida. The release doesn’t say how many will be built, but full (and presumably redundant) Earth coverage means dozens at the least. But if they’re mass-manufactured standard goods, that should keep the price down, relatively speaking anyway.

No word on the actual amount raised by the company in January, but with the stature of the investors and the high costs involved in the industry, I can’t imagine it’s less than a few tens of millions.

Hannigan himself calls EarthNow “ambitious and unprecedented,” which could be taken as an admission of great risk, but it’s clear that the company has powerful partners and plenty of expertise; Intellectual Ventures doesn’t tend to spin something off unless it’s got something special going. Expect more specifics as the company grows, but I doubt we’ll see anything more than renders for a year or so.

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Origami-inspired radiator from NASA could change shape to warm or cool tiny satellites

Posted by | Gadgets, NASA, Satellites, science, Space, TC | No Comments

origami_radiator_configuration The devices we’re sending into space are getting smaller and lighter, which means there’s less room for bulky and static components. Flexibility and compactness are coming into vogue, and this prototype satellite radiator is inspired by that most compact and flexible of arts: origami. Read More

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China launches the first quantum communications satellite – and what is that, exactly?

Posted by | China, chinese academy of sciences, Gadgets, quantum communication, quantum cryptography, quantum physics, Satellites, science, Space, TC | No Comments

W020160816334374677649 Congratulations are in order for China: by launching the world’s first quantum communications satellite, the country has achieved an interesting — if somewhat difficult to explain — milestone in space and cryptography. Read More

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Running at 150,000 RPM, this tiny motor could help satellites keep on course

Posted by | Celerotron, Eidgenössische Technische Hochschule Zürich, Gadgets, Satellites, science, Space, spacecraft, TC | No Comments

femtosat-6 The future is small in space: picture Cubesats the size of toasters and Femtosats an inch across crowding the skies. A newly invented motor that’s both tiny and powerful goes hand in hand with that vision, providing compact spacecraft with the ability to adjust their position without using a drop of fuel. First, though, a little engineering lesson. Here comes the science! It’s… Read More

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Google Maps gets multi-stop directions and vacation memories on mobile

Posted by | Android, Google, Google-Maps, iOS, memories, Mobile, multi-stop, photos, satellite imagery, Satellites, Social, TC | No Comments

Camping site with a caravan and a four wheel drive parked under a tree by the Darling River in Australia. Google is bringing long awaited multi-stop directions to mobile with its new summer update. Travelers can now hit as many tourist traps as they want on their cross country treks. Just like in the web version, users can swiftly rearrange the order of stops. Android users will get the feature first, followed by iOS in the near future. The summer update caps off an active week for Maps.… Read More

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Student-designed ‘FemtoSats’ aim to bring cost of satellite deployment below $1,000

Posted by | Gadgets, Satellites, science, Space, TC | No Comments

femtosat-1 Got a grand burning a hole in your pocket? You could get a new laptop — or you could send this tiny, palm-sized satellite to space. That’s what a team of engineers at Arizona State hope, anyway: their “Femtosats” are meant to be as cheap a space-bound platform as has ever been devised. Read More

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