Spotting leaky pipes from orbit

PRIVATE utility Anglian Water, which supplies water services to around seven million people across eastern England and is under pressure to cut back on excessive wastage from leaky pipes, is turning to out-of-this-world technology for help.

The Huntingdon-based company is using space age technology, originally developed to detect water lying below the surface of Mars, the red planet, to locate hard to find underground leaks. Information gathered by the latest Earth-orbiting satellites is crunched by specialist computer algorithms and then turned into images as a way of helping engineers solve the costly environmental problem.

The system was first created to detect water on Mars and pioneering space firm Asterra is now redeploying its space know-how to help utility companies like Anglian Water solve a long-standing problem.

“It’s not just water that is wasted by leaking pipes – every drop also represents a substantial emission of carbon,” says founder and chief technology officer of the London and Tel Aviv-based company, Lauren Guy.

Anglian Water admits it loses 182 million litres of water per day across its network, an equivalent leakage of approximately 16-18 percent when compared to the amount of water running through the network each day.

“We recently used the Asterra technology to pinpoint some significant leaks that would never have been identified due to the relatively low percentage loss”, a company spokesperson said.

“These non-visible, underground leaks were in remote areas and would never have been reported by a customer, or indeed found using traditional detection sweeps.

“They often run through agricultural and rural farmland where traditional detection, or even smart distribution leakage technology, is difficult to use due to the lack of fittings and the sheer geographical size of an area.”

The water firm says the Asterra expertise allows it to use satellite data to detect leaks from otherwise difficult-to-inspect transfer pipes and trunk mains right across its system.

Before space technology stepped in, staff from water utility companies had to ‘walk the line’ in search of leaks, often manually inspecting mile upon mile of pipes each day in the hope of catching the sound of trickling water.

More modern techniques, such as installing acoustic sensors to listen automatically for leaking pipes are effective but can only cover limited areas before becoming cost prohibitive. Planetary scientists searching for the holy grail of Martian water then realised that orbiting spacecraft with special radar sensors could be used to spy out water lying below the red planet’s surface.

Asterra’s adaptation of this space-based solution for terrestrial use came after Guy realised that if satellite technology could locate water under the surface of Mars it could also be used to help track down water leakages closer to home. His discovery was made possible by sensors known in the space business as Synthetic Aperture Radar (SAR), which are used on many of the latest low Earth orbit (LEO) satellites and can peer through cloud and below Earth’s surface.

L-band SAR uses the motion of a radio antenna to build up images which typically cover areas of around 3,500 square km at a time. It works by transmitting radio frequency waves and recording what is reflected to the receiver, revealing details on the nature of the reflective material, including the moisture content of soil.

Asterra’s breakthrough relies on sophisticated data processing using proprietary geophysical modelling and analysis. “It allows us to pick up the signature of leaking water in densely populated urban areas packed with interferences to SAR imaging”, explains Guy. “The observations are much more than high-quality images and, since perfecting the art of extracting a signal from the noise, we can provide game-changing insights to the water industry.”

All this means city and county-wide systems for transporting drinking water and wastewater can be more easily analysed to identify subsurface leaks that otherwise go undetected. (See satellite image from JAXA at top of article with blue lines showing water pipes and yellow dots “points of interest” where satellite data indicates a leak).

“It goes without saying that if leaks can be plugged, then the volume of water saved can amount to an entirely new water source and the requirement to drill new wells, raise dams or invest in expensive desalination plants is significantly reduced,” says Guy.

“Cleaning, treating, pumping and distributing water is an energy-intensive process, and any water going to waste represents unnecessary greenhouse gases pumped into the atmosphere. Our mission is to help water infrastructure companies improve the distribution of clean water and cut back on waste.”

 Editor's note: an original version of this article was published on Central Bylines.

On Earth as it is on Mars

The UAE (United Arab Emirates) confirmed plans this week to build a city called ‘Mars Scientific City’, a US$135 million (Dh500 million) project that will simulate life on the red planet on Earth.

The announcement was made on the first day of the Annual Government Meetings in Abu Dhabi and also coincided with the International Astronautical Congress (IAC) being held in Adelaide, Australia. Dubai will host the IAC in 2020.

The high-tech city will cover 1.9 million square feet, making it the largest space-simulation city ever built, providing a viable and realistic model to simulate living on the surface of Mars.

The project encompasses laboratories for food, energy and water, as well as agricultural testing and studies about food security in the future.

It will also include a museum displaying humanity’s greatest space achievements, including educational areas to engage young citizens with space and inspire a passion in them for exploration and discovery. The walls of the museum will be 3D printed, using sand from the UAE desert.

"We are seeking a better life and education as well as a stronger economy and the internationally most sophisticated infrastructure for generations to come," said His Highness Shaikh Mohammad Bin Rashid Al Maktoum, Vice-President and Prime Minister of the UAE and Ruler of Dubai.

The Mars Science City project falls within the UAE’s objectives to lead the global scientific race to take people to Mars and is part of the country’s Mars 2117 Strategy which seeks to build the first settlement on Mars in the next 100 years.

The project seeks to attract the best scientific minds from around the world in a collaborative contribution in the UAE to human development and the improvement of life. It also seeks to address global challenges such as food, water and energy security on Earth.

The plan for the Mars Science City project includes an experiential element, which will involve a team living in the simulated red planet city for one year, involving a range of experiments are to be devised, which will lead to innovation around self-sufficiency in energy, water and food.

The Mars Science City structure will be the most sophisticated building in the world and will incorporate a realistic simulation environment replicating the conditions on the surface of Mars.

The city will consist of several domes, with innovative construction techniques providing support for the structures. A team of Emirati scientists, engineers and designers, led by a team from the Mohammad Bin Rashid Space Centre and Dubai Municipality, will carry out the project, in cooperation with internationally renowned architects.

Beagle found on Mars

 

This is what it should have looked like. A tiny series of platelets no bigger than a dustbin lid flattened against the reddish dust of Mars, gathering sunlight and sending back juicy data.

It was the mission that inspired a generation and we thought it had been lost for ever. But now it has been discovered by scientists operating a camera on NASA's Mars Reconnaissance Orbiter (MRO).

Beagle 2 - named after Darwin's exploration ship - hitched a ride on ESA's Mars Express orbiter as the only robot up to that time designed specifically to look for signs of life on the red planet.

It left the mother craft on 19 December 2003 and was on course to land on the Martian surface on Christmas Day but in the end sent no signal back.
   
In February 2004, after two months of attempts to make contact, the project's scientists and engineers led by Prof Pillinger of the Open University, finally accepted their mission was lost.

Beagle 2 was planned to hit the thin Martian atmosphere at 13,000 mph and mission scientists favoured the theory that a freak thinning of the atmosphere caused the lander to go in too fast.

They thought the craft may have burned up in the atmosphere, its parachute could have failed or become entangled, or the shock-absorbing air bags may have under performed.

As Editor of Spaceflight magazine at the time I wrote about the inspirational British programme on many occasions and interviewed the late Prof Colin Pillinger about its fate.

At a press conference in London in May 2004, Prof Pillinger (pictured below) told me that it could also have been something as simple as a failed transistor or a piece of wiring. It turns out he might not have been far from wrong.

Prof Pillinger at the May 2004 press conference

Of course, the ever-optimistic Prof Pillinger was always of the view that one day the tiny craft created and built in British laboratories and cheekily flown piggyback on a European space probe would be discovered.

So, at an eagerly anticipated press conference organised by the UK Space Agency (UKSA) today, a new and perhaps final chapter was written in the story of the first British mission to Mars.

It was all made possible by an instrument known in NASA-speak as ‘HiRise’ on MRO, the only camera in Mars orbit that can image the surface in high enough detail to spot missing spacecraft.

It has already found the twin Viking landers, which touched down on Mars in the 1970s, and photographed Nasa's Phoenix, Curiosity and Opportunity rovers. The team had been actively hunting for Beagle 2 for several years.
   
"HiRise is the only camera at Mars that can see former spacecraft like Beagle 2,” said Shane Byrne, a scientist on the HiRise team at the University of Arizona. “It's definitely pretty close to its intended landing spot, no matter what. It entered the atmosphere at the right time and place.”

Designed to look for signs of life on Mars, Beagle 2 carried a drilling instrument to poke beneath the surface. Its release from Mars Express went smoothly, placing Beagle 2 on course for a landing site at Isidis Planitia, a huge plain near the Martian equator.

The lander deployed a parachute on its way down to the Martian surface and inflated triple air bags at the last minute to cushion the impact.

Rumours that remnants of the lander had been found were sparked at the beginning of this week when the UKSA scheduled a press conference to announce an unexpected “update” on Beagle 2.

Dr David Parker, UKSA chief executive, opened the packed press conference in London by confirming what we pretty much already knew by then - that Beagle 2 is “no longer lost”.

He said: “We are not looking at a crash site. The new images show good evidence of Beagle 2 resting on Mars. They are consistent with the spacecraft having landed on the planet’s surface.”

Alvaro Giménez, ESA’s director of science and robotic exploration, described how not knowing what happened to Beagle 2 had been a nagging worry.

“We are very happy to learn that Beagle 2 touched down on Mars,” he said. “The dedication of the various teams in studying high-resolution images in order to find the lander is inspiring.”

The images were initially searched by Michael Croon, a former member of the Mars Express operations team at ESA’s Space Operations Centre, ESOC, in Darmstadt, Germany, working in parallel with members of the Beagle 2 industrial and scientific teams.

The small size of Beagle 2 – less than 2 m across when fully deployed – meant this was a painstaking endeavour, right at the limit of the resolution of the camera technology.

After the identification of potential parts of Beagle 2 in the expected landing further images were obtained and analysed by the camera team, the Beagle 2 team and NASA’s Jet Propulsion Laboratory.

They show the lander in what appears to be a partially deployed configuration, with only one, two or at most three of the four solar panels open, and with the main parachute and what is thought to be the rear cover with its pilot/drogue parachute still attached close by.

“The size, shape, colour and separation of the features are consistent with Beagle 2 and its landing components, and lie within the expected landing area at a distance of about 5 km from its centre,” said Prof Mark Simms, of Leicester University.

Pictures of such a lost lander are of huge interest to space scientists in helping them plan future missions to Mars, such as ESA's Exomars mission, which is due to launch in 2018 and land the year after.

“Beagle 2 was very much more of a success than we previously knew,” added Dr Parker. “The history books will now have to be slightly re-written to say Beagle 2 did land on Mars on Christmas Day 2003.”

In the final analysis, scientists admit that it is frustrating that such an ambitious mission came so much closer than we all thought to realising its aims - but that is the nature of space exploration.

Sadly, the discovery of Beagle 2 came just too late for Prof Pillinger who died last May without ever knowing what really happened.

With mutton-chop whiskers, an eccentric choice of clothes and distinctive west country burr, he was a natural enthusiast and the epitome of a scientist. He would have been overjoyed at today’s announcement.

Blog post by Clive Simpson, Editor of Spaceflight magazine 2001-2011 and now working as a freelance journalist

Back to the future

 Photos: Nasa

Today's first-ever test flight of NASA's Orion deep-space capsule is all about the future of America's space effort - but it's also about reviving the past.

"I feel like the Blues Brothers - we're getting the band back together," Bob Cabana, director of NASA's Kennedy Space Center, told a pre-launch news conference in front of Orion's Florida launch pad.

After a 24 hour launch delay the Delta IV Heavy and Orion cleared the tower in just a few seconds to begin a carefully choreographed climb skyward.

The core stages on either side of the rocket burned their propellants and fell away at T+3minutes, 56 seconds. The central core stage continued for another 94 seconds as the rocket and spacecraft climbed higher and picked up more speed. The first stage fell away and the second stage took over to put Orion into an initial orbit of 115 miles by 552 miles.

Orion is Nasa’s successor to the Space Shuttle and the agency hopes it will take humans further into space than ever before, possibly as far as Mars. The test flight is the start of a “new chapter in human space exploration”, the agency says.

Primary purpose of the mission was to test a new 16 foot wide heat shield aimed at protecting the capsule, which can carry up to six astronauts. After two orbits, Orion plunged to Earth off the coast of Baja, California, travelling at 20,000 mph and generating 2,200 C as it plunged through the atmosphere.

Nasa confidently asserts that Orion will send people to an asteroid and onward to Mars, but the first astronauts are not scheduled to travel in it for at least seven years, which is a long time in space politics.

Even this crew-less outing - known as Exploration Flight Test 1 (EFT-1) - carried echoes of Apollo. The 4.5 hour trip sent Orion 3,600 miles out from Earth, the farthest that a spacecraft meant for humans has flown since 1972.

And it splashed down in the Pacific Ocean - just like NASA's last Apollo spaceship that returned to Earth at the end of the Apollo-Soyuz Test Project in 1975.

For NASA, even the fact that people are paying attention to the Orion test flight comes as a welcome blast from the past. The space agency said more than 500 journalists were accredited to cover the launch, which is more than for any other Florida launch since the Shuttle fleet's retirement.

Orion is being developed by Lockheed Martin alongside a powerful new rocket that will have its own debut in three or four years' time. Together, they will form the core capabilities needed to send humans beyond the International Space Station (ISS).

Today's flight therefore was on a stand-in Delta IV-Heavy rocket - currently the largest US launcher which duly delivered a fiery launch spectacle to the millions of people watching Nasa’s live internet broadcasts.

At this point immediately after the mission it seems that just about everything worked perfectly. The test will go down as a huge success as analysing the data begins in earnest.

However, in the background, there are still worries about the strength of political commitment  underpinning to the Orion programme - and any resulting lack of money could mean the momentum of successive missions becomes hard to maintain.
       
Space rarely seems to be out of the news these days. Hot on the heels of last month’s Rosetta and the inspiring  Philae comet lander we've also had an ESA ministerial meeting (at which decisions are made on the funding of future European space programmes) this week .

The UK has committed over £50 million to the project that has an estimated price tag of €340 million. But with promises extending to €180 million for funding, the ExoMars plan is still short of all the funds it needs.

According to ESA's pragmatic director general Jean-Jaques Dordain that is more than enough to be getting on with, thank you very much. It means that Britain will likely take the lead and build the rover on these shores.

The government's pledge to the ExoMars programme amounts to £55 million, alongside a similar amount to help keep the Space Station operating in orbit. This more than triples the sum offered as a ‘one-off' payment to the ISS two years ago.

Eager to join the positive band wagon, even George Osborne managed to work in a quip or two about Mars exploration and his great support for space when introducing his budget deficit this week in the House of Commons.

Joking at the expense of the opposition benches, Mr Osborne said: "We on this side of the house have often gazed at the barren and desolate wastelands of the red planet. We have long given up hope of finding intelligent life there. But signs of any life at all would be a major advance."

The country's growing space industry is at last getting the recognition and investment it needs - not just ‘because it is there’ but because politicians now recognise it is a pretty shrewd investment for the country as a whole.

Credit must be given to all political parties. The good work in space was started by the last labour government and has been continued by the coalition in a true example of what joined up, long-term thinking should be about. If only this could be applied in other areas - like the country's energy policy.

It does remain to be seen, however, whether Nigel Farage and his Ukip brigade have anything like a space plan scribbled on the back of a fag packet should they get anywhere near the final countdown during next May's elections. I guess we just have to say, ‘watch this space’.

Report by Clive Simpson

Curiosity on Mars!

An image from NASA's Mars Reconnaissance Orbiter released last week shows NASA's Curiosity Mars rover and the wheel tracks from its landing site to the Glenelg area where the rover worked for the first half of 2013.

The orbiter's High Resolution Imaging Science Experiment (HiRISE) camera captured the scene on 27 June 2013, with the orbiter rolled for an eastward-looking angle rather than straight downward. The afternoon sun illuminated the scene from the western sky, so the lighting was nearly behind the camera. This geometry hides shadows and reveals subtle colour variations.

Curiosity that day was examining an outcrop called Shaler, the rover mission's final science target in the Glenelg area before commencing a many-month trek southwestward to an entry point for the lower layers of Mount Sharp. The rover appears as a bright blue spot in the enhanced colouring of the image.

The image also shows two scour marks at the Bradbury landing site where the Mars Science Laboratory mission's skycrane landing system placed Curiosity onto the ground just about one year ago on 6 August 2012.

The scour marks are where the landing system's rockets cleared away reddish surface dust. Visible tracks commencing at the landing site show the path the rover travelled eastward to Glenelg.

Curiosity may be 140 million miles away on a hostile planet but that’s no excuse for not sending home a self-portrait.

This incredible shot shows Curiosity on the surface back in February - it comprises dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI) during the 177th Martian day (or sol) of Curiosity's work on Mars plus three exposures taken during Sol 270 (10 May 2013) to update the appearance of part of the ground beside the rover.

The updated area, which is in the lower left quadrant of the image, shows grey-powder and two holes where Curiosity used its drill on the rock target ‘John Klein’.

The portion has been spliced into a self-portrait that was originally prepared and released in February before the use of the drill. The result shows what the site where the self-portrait was taken looked like by the time the rover was ready to drive away in May 2013.

MAHLI, which took the component images for the mosaic, is mounted on a turret at the end of the rover’s robotic arm and was able to capture the component images with wrist motions and turret rotations. The arm itself was positioned out of the shot in the images, or portions of images, used in the mosaic.

Thanks to the guys at NASA/JPL-Caltech/MSSS for some great photography work!

Curiosity's journey of discovery

The ‘promised land’ beckons for the Curiosity Mars rover but it is likely to be around six months before the car-sized craft arrives in the foothills of Mt Sharpe whose rocks may have preserved a geological record of the ancient Martian environment.

Just two months into its mission on the red planet, delegates at the 63rd International Astronautical Congress (IAC) in Naples, Italy, were treated to a first-hand update on the progress of the Curiosity Mars on Thursday, 4 October during the second ‘breaking news' session.

Richard Cook, Mars Science Laboratory (MSL) Project Manager, described the mission as making a "great start" to a deeply interesting mission.

Reviewing the ‘seven minutes of terror landing', he said that what Curiosity is going to achieve on the surface will be equally inspiring as its spectacular landing.

He explained that the Gale Crater objective was chosen after a labourious process spread over several years - selected on the basis that it is most likely to offer a glimpse into the ancient history of Mars based on its rock records.

He likened Gale Crater - 150 km across with the central peak of Mt Sharpe rising to 4,000 metres - as similar in size and elevation to the ‘big' island of Hawaii.

"It gives you an idea of the scale and the challenge of trying to explore that - for the first two years, we will essentially be driving in the foothills."

He said that from a landing site safety perspective, mission planners couldn't have picked a better spot and that Curiosity would now be moving away from the direction of Mt Sharpe in order to explore a close by alluvial fan area in the opposite direction of originally planned travel.

Cook explained that the basic mission concept was to use either the onboard scoop or drill to acquire samples of rock or soil for testing.

In order to select which part or area of a rock to sample, Curiosity will use its ChemCam laser to vaporise a small portion of a potential target rock and analyse its spectral composition. This will help scientists determine which rocks or areas are of most interest to sample with the scoop or drill.

"We intend to use ChemCam repeatedly in any given area to help identify rocks that will be of the most interest," he explained.

Curiosity is capable of travelling around 200 metres a day but is unlikely to proceed at that kind of rate to the prime target area in the foothills of Mt Sharpe because scientists will want to "stop off on the way" to look at interesting features in closer detail.

Cook estimated that the journey to the lower reaches of Mt Sharpe would likely take around six months once extra stopping time for science work is factored in.

He showed a number of stunning Mars images, including one of the latest Curiosity releases of a conglomerate rock which has already given scientists their strongest indication yet that water once flowed in the landing area.

Mars Reconnaissance Orbiter images will be used to track the progress of Curiosity across the surface and he described a view showing the rover's first short traverse with its tracks in the Martian soil as a "gee wiz" image.

He said that cross-contamination from Earth had been a big area of concern during mission planning and in a pre-planned exercise, the rover team had already been using Mars' soil to clean through the sampling system prior to feeding in a collected sample for the first time.

Cook announced that they were preparing for the first scoop sample within the next 24 hours and that it would be about a month longer before the first drill sample is taken.

"The difference with this mission compared to the Spirit and Opportunity rovers is that you have to think about chunks of time rather than one day at a time - it is that much more complicated," he said.

"In a way the mission is still in 'cruise' phase," Cook added. "Curiosity is going to continue to surprise us and show us new things. This kind of mission doesn't get boring and the promised land is yet to come."

The above is one of a series of daily reports from the International Astronautical Congress 2012 held in Naples, Italy, written by Clive Simpson for the Paris-based International Astronautical Association (IAF) and first appearing on the IAF website