Tag: engineering

Kepler on verge of death

10:04 am

The Kepler space telescope is now almost out of fuel, and scientists have ceased science observations to devote the telescope’s last days downloading its last 51 days of data.

The telescope lasted far longer than planned, and discovered thousands of exoplanets. Its archives will be producing new discoveries for decades. And a new exoplanet space telescope, TESS, is already in orbit to take over.

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India tests launch abort system for its own manned capsule

9:31 am

India on July 5 successfully tested its own launch abort system for use on its own manned capsule.

The test was over in 259 seconds, during which the crew escape system along with crew module soared skyward, reached an altitude of nearly 2.7 km, swerved over the Bay of Bengal and floated back to Earth under its parachutes about 2.9 km from Sriharikota.

A video showing excerpts of the test can be viewed here.

India has not yet fully committed to building a manned capsule, but they have been moving forward on testing for several years now, and I expect them to make a commitment within the next year. In fact, I think it likely that India will be the fourth nation, after Russia, the U.S., and China, to launch its own astronauts into space on its own spacecraft.

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AT&T: How to Use the Dial Phone

6:01 pm

An evening pause: I would not be surprised if some of the younger readers of Behind the Black would need the instructions in this silent film in order to properly use a rotary phone.

Introducing any new technology requires instruction. This was strange stuff to homeowners in 1927, but a great improvement over party line phones that required an operator to do the dialing. And this was cutting edge then, and a symbol of the future.

Hat tip Jim Mallamace.

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2″ 2.5″ 3″ 4″ 5″ 6″ 7″ 8″ 10″ 12″ 16″ 24″ 36″ 48″

6:01 pm

An evening pause: As John Adams predicted right after ratification of the Declaration of Independence, Independence Day “…ought to be solemnized with pomp and parade, with shows, games, sports, guns, bells, bonfires, and illuminations from one end of this continent to the other, from this time forward forever more.”

It was a declaration for freedom. And even if freedom dies here in this country, the idea will live on, as long as the individual soul of any human beats strong.

As an aside, check out this old post, before I moved to Arizona, when I used to participate on a fireworks team.

Hat tip Willi Kusche.

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More launch delays from Russia

10:00 am

Russia has decided to delay one of three commercial Soyuz rocket launches to 2019 due to unspecified “readiness” issues.

The launch of Soyuz-ST launch vehicle with a European satellite was initially scheduled for October 6, a source in the aerospace industry told Interfax. “However, evaluating relevant conditions and the launch vehicle’s readiness, the decision was made to move the launch to November 6,” the source said.

In all, three Russian launch vehicles were expected to take off from the Kourou Space Center by the yearend. Italy’s CSG-1 satellite was scheduled to be launched in November, which was to be followed by the launch of OneWeb’s pilot mini-satellites. Due to the delay of the European weather-forecasting satellite’s launch, the launch of two more rockets from Kourou was endangered. “One of the three launches has to be postponed until next year. This is most likely to be Italy’s CSG-1 satellite. However, a lift-off of satellites under the contract with OneWeb may be adjourned,” he said.

In addition, there was this story (behind a paywall) that noted that the only Proton-M launch in 2018 will also be delayed until 2019.

While such delays in rocket launches are not unusual and are an accepted part of the business, these delays for Russia do not help them. The technical problems in recent years that have caused many launch failures, combined with these delays, will further encourage their international customers to go elsewhere.

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Virgin Orbit gets first launch license

7:54 am

Capitalism in space: Virgin Orbit has obtained its first launch license from the FAA.

They hope to fly this first orbital flight before the end of the summer. Previously they have announced launch contracts calling for commercial launches in 2019, which requires these test flights in 2018.

Either way, it appears that, as I predicted in 2016, Virgin Orbit will achieve its first operational flight ahead of Virgin Galactic, even though the latter has been in development more than twice as long.

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More close-up images of Ceres

6:48 am

On Monday the Dawn science team released more close-up images of Ceres, taken from Dawn’s final close orbit of the dwarf planet, with the focus of this release Occator Crater and its bright spots.

The current images now show numerous sections of Occator Crater from an altitude of 35 kilometers and with a resolution less than 5 meters per pixel. “The data exceeds all our expectations,” Dr. Andreas Nathues from the MPS, Framing Camera Lead Investigator, says. In the new images, the surface is now ten times better resolved than in the best images from the previous three years.

Impressive avalanches reveal themselves in the new views of the eastern wall of Occator Crater: there are clear signs that material has been recently moving down the slopes; some of it remains stuck halfway. Other images allow a close look at the interplay of bright and dark material in the eastern part of the crater. “We now hope to understand how the bright deposits outside the crater center came about – and what they tell us about Ceres’ interior,” says Nathues. Various analyses of the past years suggest that Ceres has a water-rich crust. Small impacts and landslides regularly expose ice at the surface, which produces a thin exosphere of water vapor.

I have posted some of these images previously, but there are several new ones at the link.

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Private Japanese smallsat rocket fails at launch

8:26 pm

Capitalism in space: The second test flight of a private Japanese smallsat rocket company, Interstellar Technologies, today failed immediately at launch.

A rocket developed by a Japanese startup company burst into flames seconds after a failed liftoff Saturday in northern Japan.

The MOMO-2 rocket, developed by Interstellar Technologies, was launched in Taiki town on Hokkaido, Japan’s northernmost main island. It was supposed to reach as high as 100 kilometers (62 miles) into space. Television footage showed that the 10-meter (33-foot) pencil rocket lifted only slightly from its launch pad before dropping to the ground, disappearing in a fireball. Footage on NHK public television showed a charred rocket lying on the ground.

The incident caused no injuries.

Rocket science is hard. Competition and freedom carries risks. This company might not be dead, but this failure is definitely a significant setback.

Posted from Belize.

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SpaceX successfully launches Dragon to ISS

8:51 am

Capitalism in space: SpaceX early this morning successfully launched Dragon to ISS using its last Block 4 Falcon 9.

Both the first stage and Dragon were used components. As planned, they did not recover the first stage.

The leaders in the 2018 launch standings:

18 China
12 SpaceX
7 Russia
5 ULA
4 Japan

The U.S. and China are once again tied at 18 in the national standings.

At the moment the 2018 worldwide totals for launches is 54, and this is only for the first half of the year. As I predicted in my January review of 2017’s launch totals, we continue to trend to having more than 100 launches in 2018, the first time this has happened since before the fall of the Soviet Union. Then, the numbers were inflated because the Soviets launched a lot of out-of-date spy satellites more out of habit than practicality, which is why, when the Soviet Union fell, the launch totals dropped precipitously. Now, the numbers reflect the real commercial market in space, and suggest real sustained growth, largely fueled by SpaceX’s forcing of lower launch prices.

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A nerve gas detector made of Legos and an iPhone

9:24 am

Engineers have designed a cheap and simple prototype nerve gas detector using both Legos and an iPhone.

The rig features a sliding plate of upside-down Legos with rows of small holes that can be filled with nerve agent samples, which are then placed in a chemical cocktail. The chemicals will change color and fluoresce with even the smallest amount of a nerve agent in the sample.

“Unfortunately, it can be difficult to see differences in the level of fluorescence with the naked eye in the field,” said Xiaolong Sun, a post-doctoral research fellow who helped develop the device’s sensors. The Lego box operates as a portable darkroom with a UV light to activate the chemical fluorescence. Once the light is turned on, an iPhone placed on top of the box is able to take photos of the sample through a small hole drilled through the Legos.

A photo of the sample can then be sent by text or email to someone at a lab with a computer to identify the type of nerve agent and how much of an agent there is with a color scale and software developed by graduate student Alexander Boulgakov.

What is clever about this is its simplicity. If only more engineers on government projects would think like this.

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Complex carbon molecules from within Enceladus

9:11 am

Scientists have determined, using Cassini data, that there are complex carbon molecules spewing from the tiger stripes on Saturn’s moon Enceladus.

Putting it all together, the scientists concluded that the Cassini spacecraft was encountering dust particles rich in carbon in large, complex “macromolecular structures”. The only place this material could have come from was the interior of Enceladus, from which ice, dust and gas is jetting out in geyser-like plumes. These plumes are fed by vapours escaping from a sub-surface ocean.

“So this is a direct sample of the Enceladus ocean,” Khawaja says.

What exactly the newly discovered organic materials are is open for debate, although Khawaja believes they most likely are made of large numbers of ring-like structures cross-linked by hydrocarbon chains. An important hint comes from the fact that the organic-rich grains don’t contain much water, implying that the materials in them don’t easily mix with water. Khawaja hypothesises that they formed deep inside Enceladus, then rose to the top of its underwater ocean, where they formed a thin film akin to an earthly oil slick.

Just to be very clear, they have not discovered life. What they have found however increases the chances that there is life within Enceladus’s underground ocean.

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Long March 2C first stage crashes into Chinese town

9:04 am

Footage showing the first stage from yesterday’s Long March 2C launch crashing into a city has now been released.

The Chinese government issues warnings and even evacuates areas calculated to be under risk of impact during these interior launches, but it appears that many locals stick around to film the event. I have embedded below the fold this most recent footage.

The fuel from the first stage of the Long March 2C is very toxic, so China is increasingly facing a bad PR problem they don’t want. They are using their space program, much like the Soviets did, to highlight China’s new first world status. Images of an out-of-control rocket crashing into populated areas does not serve that purpose well. Expect them to accelerate their efforts to either develop reusable first stages, and to abandon this launch site.
» Read more

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Rocket Lab cancels Electron launch for this launch window

8:53 am

In reviewing the motor controller problem that caused a launch scrub earlier this week, Rocket Lab has decided to cancel further launch attempts during the present launch window ending July 6.

In a statement, Rocket Lab said “the motor controller behaviour was similar to that previously identified during wet dress rehearsal operations in April.”

“This issue was analysed and corrective measures [put] in place, however a similar issue presented during yesterday’s pre-launch operational checks. All systems had previously performed nominally during a wet dress rehearsal on 16 June.”

A motor controller is a device that governs commands given to selected hardware and software systems throughout the launch vehicle.

My guess is that they are now worried about a systemic problem with the motor controllers, since the same problem has now occurred on two different units, and it has been an intermittent problem as well.

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Trace Gas Orbiter releases new images

10:28 am

Uzboi Vallis entering Holden Crater

Cool image time! Europe’s Trace Gas Orbiter, now in its science orbit around Mars, has released some new pictures (the top five images at the link). The image above shows the very long and meandering canyon Uzboi Vallis as it cuts through the rim of Holden Crater, on the right. If you click on the image you can see a higher resolution version.

With this release the European Space Agency does a very poor job of providing relevant information. It does not provide the latitude/longitude of this image, its scale, or a context image. Thus, I can only guess at its precise location.

Regardless, this area, where Uzboi Vallis enters Holden Crater, is one of the candidate landing sites for the American 2020 Mars rover. Uzboi Vallis is thought to have been formed by flowing water as it cut through a number of craters in the southern high plains.

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Fractured surface in Occator Crater on Ceres

10:03 am

fractures in Occator Crater

Cool image time! Dawn, now in its final very close orbit above the surface of Ceres, has released some new images. The image on the right, cropped to post here, was taken from a distance of only 22 miles, and shows a fracture network and some very pronounced cliffs on the wall of Occator Crater. The sunlight is coming from the right. You can also see a bright spot on an east-facing slope with what looks like an apron of lighter avalanche material below it. The flat smooth surface of the floor of this same canyon is likely because it is filled with dust, which has ponded there.

These fractures suggest that the wall of the crater is undergoing a slow motion avalanche, with sections separating off and slowly sagging into the crater below, creating the fractures.

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China launches two satellites

9:40 am

China today successfully launched what it called two “technology test satellites,” using its Long March 2C rocket.

No further information about the satellites was released. The Long March 2C is comparable to India’s PSLV rocket, and thus is used for smaller payloads.

The leaders in the 2018 launch standings:

18 China
11 SpaceX
7 Russia
5 ULA
4 Japan

This launch puts China ahead of the U.S. in the national race, 18-17, though SpaceX’s Dragon launch later this week should tie things up again.

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Arianespace lowers its launch forecast for 2018

9:29 am

Capitalism in space: Because of a launch miscue in January and a decision by India to delay a satellite launch, Arianespace today admitted that it will not meet its forecast of fourteen launches in 2018.

Arianespace, majority-owned by a joint venture of Airbus and Safran, has so far conducted only three launches, but expects a busier second half, CEO Stephane Israel said. He now expects around 11 satellite launches for the year.

There might be a similar number of launches in 2019, but it is too early to give a definitive forecast, Israel said, adding the company was now focusing on gaining customers for the lower cost Ariane 6 rocket due to debut in 2020.

The article states the launch cost for Ariane 6 will be 40% less than Ariane 5, which cost $100 million per satellite. This brings the per satellite price for Ariane 6 to $60 million, about what SpaceX presently charges. Whether that can compete with the prices that SpaceX and others will be charging in 2020, when Ariane 6 is expected to become operational, remains unknown.

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The mysterious chaos terrain of Mars

4:05 pm

In one of my weekly posts last month (dated May 14th) delving into the May image release from Mars Reconnaissance Orbiter’s (MRO) high resolution camera, I featured an image of what planetary geologists have labeled chaos terrain, a hummocky chaotic terrain that has no real parallel on Earth but is found in many places on Mars.

This month’s image MRO release included two more fascinating images of this type of terrain. In addition, the Mars Odyssey team today also released its own image of chaos terrain, showing a small part of a region dubbed Margaritifer Chaos. Below, the Mars Odyssey image is on the right, with one of the MRO images to the left. Both have been cropped, with the MRO image also reduced in resolution. The full MRO image shows what the MRO science team labels “possibly early stage chaos” on the rim of a canyon dubbed Shalbatana Vallis.

young chaos in Shalbatana Vallis

Margaritifer Chaos

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The slow death of Planetary Resources

9:33 am

Link here. The article tries to put a positive spin on the company’s decline, but the facts described tell a different story, with its failure to raise investment capital essentially forcing it to shut down, with its best people leaving for greener pastures.

[The fund-raising failure] forced a sharp reduction in Planetary Resources’ workforce. How sharp? Lewicki declined to say, but LinkedIn’s listings show that a number of employees have moved on to Blue Origin, Amazon and other companies.

Several former members of the team have started up a new engineering services company called Synchronous. Maggie Scholtz, a Planetary Resources veteran who is now Synchronous’ president of aerospace and space, will be one of the speakers at the NewSpace conference. The event gets under way on Tuesday at the Hyatt Regency Lake Washington in Renton, Wash. Other Synchronous partners include Chris Voorhees, who was Planetary Resources’ chief engineer until February; Peter Illsley, Planetary Resources’ former director of mechanical and thermal engineering; Brian Geddes, former director of software; and Rhae Adams, former director of mining and energy.

Planetary Resources had to let a robotic worker go as well. Arkyd-6A, the experimental Earth-observing satellite that was launched for the company in January, is now idle in low Earth orbit.

When this company made its splashy appearance in 2012, claiming it planned to do asteroid mining, I said hogwash. They weren’t an asteroid mining company, at best they were a cubesat-sized orbiting telescope company, testing technologies for looking at asteroids.

In the end, they weren’t even that. Arkyd-6A has taken one picture of the Earth, and is not competitive with numerous other Earth-observation companies that have already launched many superior and commercially profitable satellites.

I am not optimistic for the future of this company. The lesson it provides however is important. Companies that oversell themselves should be viewed with great skepticism.

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Falcon 9 Dragon launch to set used booster turnaround record

9:19 am

Capitalism in space: The planned launch on June 29th of Dragon to ISS will set a new turnaround record for a used first stage, just over two months.

This first stage is not a Block 5 first stage, it is the last older Block 4. What this quick turnaround means for the upcoming Block 5 launches however is important.

Although CRS-15 will likely see its venerable Block 4 Falcon 9 booster expended in the ocean without a recovery attempt, the speed of Falcon 9 B1045’s refurbishment is thrilling for another, more abstract reason: if the design functions largely as intended, a Falcon 9 Block 5 booster should be able to handily crush that already impressive record with ease, and one will perhaps do just that within a handful of months of this launch.

Currently scheduled for no earlier than (NET) July 19 and late July to early August, the Telstar 19V and 18V communications satellites will require their own Block 5 launches roughly a month from today, and July 20’s Iridium NEXT-7 mission will further require its own Falcon 9 Block 5 booster for a mission from California. It remains to be seen what boosters will launch those three missions, as well as an additional two SpaceX missions tentatively scheduled for August and September.

In other words, there is a very strong likelihood that SpaceX will be reusing its Block 5 boosters almost immediately this summer.

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Ryugu from 25 miles

8:56 am

Ryugu from 25 miles

The Hayabusa-2 science team has released its first image of Ryugu, posted to the right, from a distance of only 25 miles. From the project manager:

The shape of Ryugu is now revealed. From a distance, Ryugu initially appeared round, then gradually turned into a square before becoming a beautiful shape similar to fluorite [known as the ‘firefly stone’ in Japanese]. Now, craters are visible, rocks are visible and the geographical features are seen to vary from place to place. This form of Ryugu is scientifically surprising and also poses a few engineering challenges.

First of all, the rotation axis of the asteroid is perpendicular to the orbit. This fact increases the degrees of freedom for landing and the rover decent operations. On the other hand, there is a peak in the vicinity of the equator and a number of large craters, which makes the selection of the landing points both interesting and difficult. Globally, the asteroid also has a shape like fluorite (or maybe an abacus bead?). This means we expect the direction of the gravitational force on the wide areas of the asteroid surface to not point directly down. We therefore need a detailed investigation of these properties to formulate our future operation plans.

They are going to have to spend some time in orbit to figure out not only where to land, but how to do it. More information on the mission can be found here.

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Dragon cargo fees to rise, due to NASA demands

12:12 pm

A government audit has found that the fees that SpaceX charges for its Dragon cargo missions to ISS will rise as much as 50%, and the cause of that price rise is almost entirely due to NASA redesign demands.

[T]he auditors pinned much of the blame on NASA for the increase. They also emphasized that the program still seems like a good deal for lowering launch costs. Auditors cited NASA for missing opportunities to cut redundancies and bargain on pricing, and noted that the agency forced SpaceX to (expensively) redesign its Dragon spaceship from the bottom up.

The report did hint, however, that SpaceX has done some reckoning as the startup has matured. “[SpaceX] also indicated that their CRS-2 pricing reflected a better understanding of the costs involved after several years of experience with cargo resupply missions,” the auditors wrote. (A SpaceX representative declined to comment on the report.)

None of this is a surprise. There are factions in NASA that have been working for the past decade to stymie or defeat the arrival of privately built and owned spacecraft like Dragon, as it makes the NASA-built spacecraft like Orion look bad. By demanding redesigns that raise the cost for Dragon, these factions gain ammunition to attack it. I guarantee we will see op-eds doing exactly that in the next year.

No matter. In the end the private market still does it better and cheaper than the government, as the audit found.

Despite the cost increases, the report ultimately called the CRS contracts with private companies “positive steps” for NASA — especially since the agency could find discounts by launching cargo on used SpaceX Falcon 9 rocket boosters. “NASA’s continued commitment to the commercial space industry also helps spur innovations in the commercial launch vehicle market,” the auditors said.

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A NASA astronaut’s detailed look at Dragon and Starliner

8:27 am

Link here. Lots of interesting details about both spacecraft from an experienced astronaut’s perspective.

The Commercial Crew program will launch uncrewed ships first. SpaceX is aiming to do that in September and Boeing in October. If successful, crewed launches will follow on December 31 (Boeing) and January 17 (SpaceX).

“We’ve gotten into the cockpit in both spacecraft. We’ve run through parts of the profile, from launch to rendezvous docking, un-docking, and [atmospheric] entry. But everything’s not been tied up, not quite yet,” Williams said. She didn’t say which company’s spaceship is her favorite.

In fact, crewed launch dates may slip to mid-2019. Williams said she expects NASA to announce her official mission selection this summer, and from there about a year of more deliberate mission training will follow.

This is a delay from the previously planned summer launches. This had been expected, but it also looks like both companies are trying hard to get things off the ground this year.

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The ship cut in half

6:01 pm

An evening pause: The youtube page explains:

Norwegian cruise ship “Braemar” was literally split in half. Carried out at the shipyard in Hamburg operation was aimed at extending the hull by 30 feet. Between the two separated parts inserted third. The ship was repainted and with a new name – “Balmoral” – went on another tour.

Hat tip Edward Thelen.

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SpaceX’s Falcon Heavy wins Air Force launch contract

8:45 am

Capitalism in space: SpaceX has won a $130 million Air Force contract to use its Falcon Heavy rocket to launch a military satellite.

The Falcon Heavy beat out a bid from United Launch Alliance for the mission labeled Air Force Space Command-52, or AFSPC-52, which is targeting liftoff from KSC’s pad 39A in 2020.

United Launch Alliance’s most powerful launcher, the Delta IV Heavy, has a price tag approaching $400 million.

The price comparison bears repeating: ULA: $400 million, SpaceX: $130. It is not surprising that SpaceX got the contract, though it does illustrate the difference between the Air Force’s space effort and NASA’s. The Air Force is making a concrete and real effort to lower its launch costs, using competition as a tool to do so. NASA, which faces the same kind of price comparison when comparing SLS to SpaceX, continues however to ignore that price difference and insist its future interplanetary manned programs must go with SLS, and SLS only.

In this context, I think this graph from Capitalism in Space is worth another look:

SLS vs commercial space

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