Tag: spaceflight

Occator Crater on Ceres

9:14 am

Occator Crater

Cool image time! As Dawn’s long and successful mission to the asteroids Vesta and Ceres winds down, the spacecraft is taking a slew of spectacular close-up images of Ceres. The image on the right, cropped slightly to post here, is an oblique view of Occator Crater, home to the double bright spots that scientists now believe are caused by the upward seepage of a water-based brine from the interior.

The image was taken August 14, 2018 from a distance of 1149 miles. It clearly shows how the bright spots are depressions, not raised features. Additional images released this week of the floor of the crater capture a complex fracture network (seen here and here) with some fractures apparently quite deep.

All this suggests that the surface crust of Ceres is not very structurally strong, allowing a churning process that plows material up and down. The data also suggests that even on a small planetary body like Ceres the geological processes are going to be complex and often on-going, depending on material, energy, and the size of the body.

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Three U.S. small space companies establish offices in Luxembourg

7:48 pm

Capitalism in space: Three U.S. small space companies have now established offices in Luxembourg in order to take advantage of the financial backing that nation is willing to afford.

The government of Luxembourg announced Sept. 27 that CubeRover, Hydrosat and Made In Space will all establish facilities in the country, in many cases working with local universities and companies. The work those companies do in Luxembourg will range from development of robotic arms to small planetary rovers.

“The success of our development strategy for the space sector, including the recent launch of the Luxembourg Space Agency, is confirmed once more with the settlement in Luxembourg of three space companies that plan to employ up to 85 people in the Grand-Duchy by 2023,” said Étienne Schneider, deputy prime minister and minister of the economy of the Luxembourg government and the driving force for the country’s recent space initiatives.

The largest agreement, in terms of jobs created, goes to Made In Space. That company, best known for additive manufacturing work on the International Space Station, plans to work on a low-cost modular robotic arm for in-space applications, and will create up to 50 jobs in the country.

They did not mention what the terms are of Luxembourg’s financial support, but I suspect it is most helpful for these companies.

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UAE astronaut flight to ISS tentatively scheduled for April

7:28 am

Russia has now tentatively scheduled the flight to ISS of the United Arab Emirates first astronaut.

The first astronaut from the United Arab Emirates (UAE) will fly to the International Space Station (ISS) on April 5, 2019, and will return to Earth on April 16, 2019, the ISS launch schedule, shared with Sputnik, has shown. According to the document, an astronaut will fly to the ISS on board the Russian Soyuz MS-12 spacecraft.

It has not been determined yet if Hazza Mansouri or Sultan Nayadi will take part in the mission. Both astronauts have qualified for it and have begun their training in Russia earlier in September.

Though the goal of this mission by the UAE government is to encourage a private space industry in their country, the mission remains wholly a government creature. What has not been released is how much UAE is paying the Russians for their flight.

Had the launch of the U.S. commercial crew spacecraft not been slowed by NASA and had been operational, either SpaceX or Boeing could have competed for this business. Expect them to do so in the future.

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China launches smallsat

7:10 am

One of China’s claimed-to-be private companies, Expace, today launched a smallsat into orbit using the Kuaizhou-1A solid-fueld rocket. .

Exspace, like OneSpace and Ispace, is considered private by the Chinese. I find it interesting however that all these private companies have remarkably similar names, and all appear to be doing military work. Even if they get private financing from Chinese investors and their management is formed independent of the government, we should not be fooled. These are wholly owned and controlled by the Chinese government. They do nothing without its knowledge and support.

The leaders in the 2018 launch race:

26 China
16 SpaceX
8 Russia
7 ULA
6 Europe (Arianespace)

China has widened its lead over the U.S. in the national rankings, 26 to 24.

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Roscosmos head meets with Chinese

7:25 am

The head of Russia’s Roscosmos space agency, Dmitry Rogozin, held meetings this week with China, discussing possible future space cooperation.

Russia can’t really afford to do much right now on its own, but it also wants to negotiate the best deal it can with anyone it works with in space. These discussions are therefore specifically designed to give Rogozin some negotiating leverage when he meets with NASA’s head Jim Bridenstine on October 10.

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New images from Hayabusa-2’s mini-bouncers

7:17 am

Three press releases from the Hayabusa-2 science team last night provide new images from the spacecraft’s MINERVA bouncers, presently on the surface of Ryugu, as well as new high resolution images from Hayabusa-2 during its recent close-in maneuvers.

The images from the first story also includes a ten second movie showing a very rocky surface with the sun moving across the sky. The last link shows the primary landing site candidate with two backup sites.

All told, these images suggest that Ryugu is nothing more than a rubble pile stuck together. If it was heading to Earth, it might be difficult to deflect it, as it might break apart caused by any stress.

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Next Long March 5 launch delayed again?

10:18 pm

There are indications in the Chinese press that suggest the next launch of China’s largest rocket, the Long March 5, will be delayed from its present November launch into 2019.

An online report by People’s Liberation Army Daily, a military newspaper, reports Lin Xiqiang, deputy director of the China Manned Space Engineering Office (CMSEO), as saying at a press conference in Beijing on Wednesday that the Long March 5B will not make its planned test launch in the first half of 2019.

“Due to the failure of the launch of the Long March 5 remote launch vehicle, the first flight of the Long March 5B carrier rocket will be postponed. The specific implementation time needs to be clarified after coordination with relevant departments,” Xiqiang said.

The November launch was to put up a test communications satellite. Should it slip into 2019, this would likely also cause delays in the launch of China’s first lunar sample return mission, Chang’e-5 (originally scheduled for 2017), the launch of China’s first Mars planetary mission in 2020, and finally the launch of the first module of China’s space station, also set for 2020.

All this once again indicates that the problems with Long March 5 were very serious, and might not yet have been addressed, even with a redesign of its engines.

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ULA picks Blue Origin rocket engine for Vulcan first stage

3:38 pm

Capitalism in space: ULA has chosen Blue Origin’s BE-4 rocket engine to power the first stage of its next generation rocket, which they are now calling Vulcan-Centaur.

Two BE-4 engines will be used to power the Vulcan first stage. The press release does not mention anything about how they plan to recover these first stages. Earlier announcements had said that they would separate from the rocket stage and parachute down to be capture before hitting the ground.

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Local Texas city council votes to keep spaceport

4:03 pm

The Midland, Texas city council today voted to renew its contract with the company managing its spaceport there.

The council voted 6-1 to renew its contract with SilverWing Enterprises, an aerospace consulting company that manages Midland’s spaceport license. The one vote came from Spencer Robnett, who has been public with his belief that the spaceport needs to be shut down.

“Yeah I don’t think it would ever have a chance in Midland,” Robnett said. “I do think the space business and space technology and aerospace sector is evolving. There’s a lot of money being invested in it by billionaires, Bezos, Musk, and Branson. Unfortunately we don’t have a billionaire in Midland chasing aerospace investment. We’ve got a small economic development corporation that takes direction from the city council.”

Robnett might have a point. Midland’s spaceport had been the base of operations for XCOR’s Lynx, and with XCOR bankrupt and gone there doesn’t seem to be a lot of interest by anyone else in flying any rockets from there. Part of their problem is their location, which is far from the coast and would likely limit the launch options in order to avoid populated areas.

The question has to be: What does Midland offer to rocket companies that other spaceports don’t? Until they can provide an answer to that question, the money the council is spending on this spaceport is probably going to waste.

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NASA extends Chandra telescope operation to 2024

8:02 am

NASA has extended its contract with the Smithsonian Astrophysical Observatory in Massachusetts to run the Chandra X-ray Observatory through 2024.

In many ways the longevity of both Hubble and Chandra as well as other space telescopes has demonstrated the robustness of much in-space engineering these days. It suggests that when we finally begin building manned interplanetary spaceships we should have confidence they will operate reliably for long periods.

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SpaceX gets contract to launch private lunar rover missions

7:52 am

Capitalism in space: SpaceX has won a contract for two launches of lunar rovers built by a private Japanese company.

Tokyo-based lunar-exploration startup Ispace has signed up for launches on SpaceX’s Falcon 9 rocket in 2020 and 2021. The first will carry a lunar lander into orbit around the moon, and the second aims to put one on the moon’s surface so it can deploy a pair of rovers, Ispace said Wednesday. “We share the vision with SpaceX of enabling humans to live in space, so we’re very glad they will join us in this first step of our journey,” Ispace Chief Executive Officer Takeshi Hakamada said in a statement.

SpaceX already has a contract for another private lunar rover, built by the Israeli company SpaceIL, that is set to launch as a secondary payload in December.

Both companies are former competitors in the Google Lunar X-Prize competition. Based on these contracts, as well as the pending launch of Moon Express’s private lunar rover on a Rocket Lab Electron rocket, it appears that private commercial planetary missions are about to become routine.

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Mars Reconnaissance Orbiter spots Opportunity through dust

3:41 pm

Mars Reconnaissance Orbiter has taken a picture through the fading Martian dust storm that spots Opportunity about halfway down Perseverance Valley in the rim of Endeavour Crater.

Engineers have been increasing the number of times per day they are attempting to communicate with the rover, so far all to no avail. The picture thus only really tells us that the storm is lifting and that MRO’s high resolution camera is operating normally after three months of limited picture taking because of the dust storm.

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Australian agency pushes Australia to join NASA Gateway project

3:32 pm

The new colonial movement: An Australian government agency, the Commonwealth Scientific and Industrial Research Organisation (CSIRO), has put forth a space roadmap for that nation that includes a push for them to participate in NASA’s lunar orbiting Gateway project.

“And when you look at a moon base, the support systems of oxygen, water, food – and the general support systems around it – is something that nobody has ever done before,” he said. “When we looked around Australia, these are areas where Australia has as much skill as anyone else. Things like dry farming capabilities, remote mining capability, the fact that CSIRO perfected the titanium dust that you can 3-D print from … there are a whole range of things where we can potentially contribute.” It is an interesting fact that Australia has exceptional expertise in 3D printing titanium. This is even more interesting when you consider that on the moon – according to Dave Williams – there is an oxide that is very similar to titanium that could be reduced to a titanium dust, with oxygen as a by-product.

“Realistically, NASA will lead the whole thing. But they will be looking for partners, and the idea will be to identify which niche areas Australia should try to push its industry into, and try to get support for and to make it work,” he said.

Essentially, they are proposing that Australia get in on the Gateway boondoggle by focusing on and then offering to provide peripheral support services.

Much of this is bureaucratic twaddle, not to be taken too seriously. At the same time, it does outline for Australia areas where there are needs, and where their private space companies could make money.

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Has Aerojet Rocketdyne lost engine race with Blue Origin?

2:59 pm

Aerojet Rocketdyne financial documents suggest that it has given up the bidding competition with Blue Origin to supply a rocket engine for ULA’s Vulcan rocket.

The latest financial release from aerospace manufacturer Aerojet Rocketdyne reveals that the company spent none of its own money on development of the AR1 rocket engine this spring. Moreover, the quarterly 10-Q filing that covers financial data through June 30, 2018 indicates that Aerojet may permanently stop funding the engine with its own money altogether—a sign the company has no immediate customers.

Although Aerojet will continue to receive some funding from the US military through next year to develop its large, new rocket engine, this money won’t be enough to bring it to completion. Instead of having a flight-ready engine for use by the end of 2019, the filing indicates that Aerojet now intends to have just a single prototype completed within the time frame.

Essentially this means ULA will have no choice but to pick Blue Origin’s engine, unless the Air Force pulls its weight and demands it take Aerojet rocketdyne, even if that means a significant delay before Vulcan can launch.

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Dust storms spotted on Titan

7:44 pm

Scientists reviewing Cassini data have identified dust storms for the first time of Saturn’s moon Titan.

When Rodriguez and his team first spotted three unusual equatorial brightenings in infrared images taken by Cassini around the moon’s 2009 northern equinox, they thought they might be the same kind of methane clouds; however, an investigation revealed they were something completely different. “From what we know about cloud formation on Titan, we can say that such methane clouds in this area and in this time of the year are not physically possible,” said Rodriguez. “The convective methane clouds that can develop in this area and during this period of time would contain huge droplets and must be at a very high altitude — much higher than the 6 miles (10 kilometers) that modeling tells us the new features are located.”

The researchers were also able to rule out that the features were actually on the surface of Titan in the form of frozen methane rain or icy lavas. Such surface spots would have a different chemical signature and would remain visible for much longer than the bright features in this study, which were visible for only 11 hours to five weeks.

In addition, modeling showed that the features must be atmospheric but still close to the surface — most likely forming a very thin layer of tiny solid organic particles. Since they were located right over the dune fields around Titan’s equator, the only remaining explanation was that the spots were actually clouds of dust raised from the dunes.

Obviously there are large uncertainties here. Nonetheless, the conclusion is a reasonable one, as it is expected that such dust storms would occur on Titan.

Posted just outside Zion National Park in the town of Springdale.

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Greenhouse in Antarctica survives winter for 1st time

8:22 am

A greenhouse in Antarctica that is partly maintained remotely from Germany has survived through the polar winter for the first time.

Regularly withstanding temperatures below minus 40 degrees Fahrenheit (minus 40 degrees Celsius), the greenhouse provided herbs, lettuce and other vegetables to 10 people who were riding out the winter in the remote station, called the Alfred Wegener Institute’s Neumayer Station III. It’s the first time the greenhouse operated through the winter. “After more than half a year of operation in Antarctica, the self-sufficient greenhouse concept appears to be effective for climatically demanding regions on Earth, as well as for future manned missions to the moon and Mars,” DLR officials said in the statement.

“The harvests are now so plentiful that some of it does not always make it straight to the table, and we now have the luxury of spreading out our consumption of some refrigerated lettuce and herbs over several days,” Paul Zabel, a DLR researcher who works with EDEN ISS, said in the statement. “The overwintering team members are always looking forward to their next fresh meal.”

From a space exploration perspective, the most interesting aspect of this story is that, when the weather was too hostile for its Antarctic maintainer to reach it, the greenhouse was then maintained remotely from Germany, for up to three consecutive days. Clearly hands-on maintenance is necessary for such a facility, but to design it so that remote maintenance can occur is a technical capability that space-colonists are definitely going to want to have.

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Bill increases funding to FAA space office, adds other provisions

7:27 am

A bill about to be approved by Congress increases funding to the FAA Office of Commercial Transportation while also requiring that office to create several new regulatory positions.

The bill authorizes a significant increase in spending for the FAA’s Office of Commercial Space Transportation, or AST, from the $22.6 million it received in fiscal year 2018 to a little more than $33 million in 2019, growing to nearly $76 million in 2023. Appropriators, though, have not matched that authorized increase for 2019, with House and Senate versions of spending bills funding the FAA offering just under $25 million for AST.

The reauthorization bill includes several policy provisions associated with commercial spaceflight as well. One would require the FAA to designate an official within its air traffic organization to serve as the single point of contact for working with the head of AST on airspace issues associated with commercial launch activity.

Another provision establishes an “Office of Spaceports” within AST intended to support commercial licensing of launch sites and develop policies to promote infrastructure improvements at such facilities. It also requires AST to develop a report within one year of the bill’s enactment on spaceport policies, including recommendations on government actions to “support, encourage, promote, and facilitate greater investments in infrastructure at spaceports.” It directs the Government Accountability Office to prepare a separate report on ways to provide federal support for spaceports.

The bill creates a category of commercial spaceflight vehicles known as “space support vehicles” that cover parts of launch vehicles systems flying for other purposes, such as training or testing. Such vehicles would include the aircraft used by air-launch systems. The bill allows commercial flights of space support vehicles without the need for a full-fledged airworthiness certificate from the FAA.

It is hard to say if these provisions will help or hurt the growth of commercial space. It does appear that Congress’s goal was to help, but their methods always include more spending and greater bureaucracy.

The article also reviews a number of bills not yet agreed to by Congress that would address the regulation of Earth observation satellites as well as satellite servicing. It quotes a number of industry experts supporting the laws being proposed, but once again, it is unclear if those laws would help or hurt. My previous review of one of these laws presently working its way through the House was decidedly mixed. It will clarify and simplify many of the regulatory problems that presently exist, while creating more bureaucracy.

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Japan successfully launches unmanned cargo ship to ISS

1:00 pm

Japan today used a Mitsubishi H-2B rocket to successfully launch an unmanned cargo ship to ISS.

The cargo ship will take five days to rendezvous and dock with ISS. Its most interesting piece of cargo is a small capsule with a heat shield, designed to return experiment samples to Earth.

JAXA says the the capsule has an internal volume of about 30 liters, and astronauts could load up to 44 pounds (20 kilograms) of specimens inside the landing craft, which features a thermos-like container to store refrigerated biological samples. That is a fraction of the carrying capacity of the Dragon capsule, but the new HTV Small Return Capsule will offer station managers a new way to make sure time-critical items can return to Earth for analysis.

Astronauts will assemble the return capsule after the HTV arrives at the station, and mount it into position over the HTV’s forward hatch for deployment once the supply ship leaves the station.

The capsule, which carries no engines of its own, will jettison after the HTV completes its deorbit burn. The re-entry craft will deploy a parachute and splash down in the Pacific Ocean, where recovery teams will retrieve it and bring it back to Japan for inspections.

The leaders in the 2018 launch race:

25 China
16 SpaceX
8 Russia
7 ULA
5 Europe (Arianespace)
5 Japan

For Japan to be tied with Europe this late in the year either indicates that Europe is sagging, or Japan is growing. I suspect it is partly both. In the national rankings China still leads the U.S. 25 to 24.

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Minerva probes send back first pictures

12:51 pm

Ryugu's surface

Super cool images! The two Minerva probes released two days ago from Hayabusa-2 have both sent back spectacular images from the surface of Ryugu.

The image on the right was captured by the rover dubbed 1A. I have rotated it to show the surface on the bottom, but the actual picture was taking during one of the rover’s bounces while it was moving, so the returned picture had the surface on left. The white brightness is from sunlight. From the press release:

We have confirmed both rovers landed on the surface of asteroid Ryugu. The two rovers are in good condition and are transmitting images and data. Analysis of this information confirmed that at least one of the rovers is moving on the asteroid surface.

MINERVA-II1 is the world’s first rover (mobile exploration robot) to land on the surface of an asteroid. This is also the first time for autonomous movement and picture capture on an asteroid surface. MINERVA-II1 is therefore “the world’s first man-made object to explore movement on an asteroid surface”. We are also delighted that the two rovers both achieved this operation at the same time.

Other released images were taken just after release. One shows a blurred picture of Hayabusa-2, while the other sees Ryugu’s surface below.

Both of these rovers are designed to travel on the surface by a series of hops, taking advantage of Ryugu’s tiny gravity. There will be more images I’m sure from them in the coming days.

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Russia considering getting out of Gateway

9:26 am

The new colonial movement: In expressing a desire not to play a secondary role in its next space station, Roscosmos head Dmitry Rogozin said today that Russia might pull out of its partnership with NASA in building its Gateway lunar station.

Russia agreed last year to work with the U.S. National Aeronautics and Space Administration (NASA) on plans for the moon-orbiting Deep Space Gateway, which will serve as a staging post for future missions.

But the head of Russian space agency Roscosmos, Dmitry Rogozin, said Russia might exit the joint program and instead propose its own lunar orbit space station project. “The Russian Federation cannot afford to play the second fiddle role in it,” he was quoted as saying by the RIA news agency, without much further elaboration.

A spokesman for Roscosmos said later that Russia had no immediate plans to leave the project.

Russia’s problem is that they simply don’t have the cash to build their own lunar station. They could build a new station of their own in Earth orbit, and that might be what they end up doing. In fact, based on the knowledge they gained from both Mir and ISS, they might be able to design that station for short interplanetary flights, such as to the Moon and back, once built.

If I was Rogozin, that is exactly what I would do. Get out of NASA’s boondoggle, and build something in Earth orbit that will really demonstrate interplanetary travel.

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Mountains on the Moon

1:53 pm

Mountains on the Moon

Cool image time! The image on the right, reduced slightly to post here, shows several high mountains on the far side of the Moon. If you click on the image you can see it at full resolution.

The summit of the unnamed peak in the foreground (50.2° S, 236.6° E) has an elevation of 6710 meters, about 7000 meters (about 23,000 feet) of relief relative to the low point at the bottom of the image. The two peaks on the horizon, 200 kilometers in the distance (about 125 miles), have summit elevations of 4320 meters (14,200 feet) and 4680 meters (15,350), respectively and both rise more than 6000 meters (almost 20,000 feet) above their surroundings.

In the Lunar Reconnaissance Orbiter (LRO) science team release in June, they noted that the high peak here is actually taller than Denali (Mount McKinley), the highest peak within the U.S. And it has no name. They also note that the peak is likely 4 billion years old, and has experienced extensive erosion in that time, meaning that it is also likely shorter than it once was.

I don’t have anything to add, other than this would be an amazing place to put up a resort, with trails taking you to the top of the mountains. In the lighter gravity, the hike would actually be somewhat easy, even wearing a spacesuit. And you wouldn’t have to worry about a thinning atmosphere as you climbed higher, as you do on Earth. You’d be carrying it with you.

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Want to look at every planetary map ever made? You can!

9:25 am

Two Polish academics have created a web-available catalog intended to contain every planetary map ever created, beginning in 1600 through the present.

“Our catalogue is being updated regularly with both newly resurfaced historic maps and new additions. For the future, we plan to add maps that have been published in journal articles and digitize maps that do not yet include GIS formats,” added Hargitai. “We live in a transition period where static maps that characterized the last 400 years may become extinct, replaced by dynamic digital map services and tools. In the digital platforms it is becoming difficult even to define what we consider to be a ‘map’, and not just layers of spatial data. Maps are used for mission planning, surface operation, and post-mission analysis. In the near future, they will be key components of planning and operating new human missions.”

The website is here. At the moment the catalog seems significantly incomplete, with only several hundred maps available. Hopefully this will expand with time.

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Stratolaunch considering launching hypersonic rocket tests from its Roc airplane

9:04 am

Capitalism in space: Stratolaunch is now considering building and launching hypersonic rocket test program using its giant Roc airplane.

In the concept study presented this week, Corda and his colleagues provide a detailed description of a delta-wing testbed plane called the Hyper-Z. It would be 83.4 feet long, with a wingspan of 32.4 feet and a launch weight of about 65,000 pounds.

Stratolaunch’s hydrogen-fueled PGA rocket engine would serve as the plane’s main propulsion system, but it could also be equipped with an air-breathing propulsion system, such as a scramjet engine. The flight profiles could accommodate a maximum speed of Mach 11, or a maximum altitude of 477,000 feet.

Hyper-Z would be launched from Stratolaunch’s mammoth twin-fuselage carrier airplane [Roc], which has a record-setting wingspan of 385 feet.

I must emphasize that this is only a concept proposal at this point. The company still has to verify the operation of Roc.

What this proposal does suggest to me is that the company is still struggling to find a profitable use for Roc, and customers to go along with it. This concept appears to be a lobbying effort to both the military and NASA, offering them Roc as a testbed for such flight tests.

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NOAA awards three more experimental commercial weather contracts

8:56 am

Capitalism in space: NOAA this week awarded three commercial companies contracts to provide the agency weather data in its expanding effort to get this data not from government satellites but from private sources.

In the Sept. 17 announcement, NOAA said it was issuing contracts to GeoOptics, PlanetIQ and Spire to provide GPS radio occultation weather data from satellites currently in orbit or planned for launch in the coming months. That technique measures the refraction of GPS signals as they pass through the atmosphere and are received by the companies’ satellites, which can provide temperature and pressure profiles to support weather forecasting models.

The awards represent round two of NOAA’s Commercial Weather Data Pilot program, an effort by the agency to experiment with buying data from commercial providers to determine its usefulness, as well as to examine various technical and programmatic issues with such data buys.

NOAA’s management bureaucracy has resisted this transition to private enterprise, much as NASA’s bureaucracy has. Nonetheless, NOAA’s inability to built and launch weather satellites at a reasonable cost and in a practical timeframe is forcing it to change.

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Creeping into Ryugu

10:16 pm

Ryugu

Cool images! As Hayabusu-2 creeps to its closest approach to Ryugu in preparation to releasing its first two mini-landers, dubbed MINERVA-II-1 and 2, the images coming down about once every half hour show the asteroid increasingly closer, with the spectacular shadow of Hayabusa-2 with its solar panels clearly visible.

The image on the right was downloaded about 10 pm (Pacific) tonight. The boulder-strewn field of Ryugu is also clearly visible. The black areas are where data has not yet been downloaded. The bright area under the shadow is merely an optical illusion.

UPDATE: A look at this webpage provides some details. When this image was taken the spacecraft was about 60 100 meters above the surface, its closest approach yet. This was also when the MINERVA-II landers were to be deployed.

All later images at the first link above were from a greater distance.

UPDATE: I have corrected the post. They released both MINERVA-II rovers, and they did it about 100 meters distance from the asteroid, not 60. We will not know the mini-landers’ status until late today.

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Rocket Lab signs another satellite launch contract

9:34 am

Capitalism in space: Rocket Lab has signed another satellite launch contract, this time with the Luxembourg-based company Kleos Space.

US orbital launch provider Rocket Lab has signed a contract with Luxembourg-based satellite technology company Kleos Space to launch the scouting mission satellites that will geolocate maritime radio to guard borders, protect assets and save lives.

The multi-satellite system of the Kleos Scouting Mission (KSM) will form the cornerstones of a 20-system constellation that will geolocate VHF transmissions from marine vessels to provide global activity-based intelligence data as a service. The Kleos Space constellation will detect radio transmissions and pinpoint their origin and timing, enabling governments and organizations to detect activity such as drug and people smuggling, illegal fishing and piracy, and also identify those in need of search and rescue at sea.

The contract is for launches in mid-2019, which suggests that Rocket Lab is increasingly confident that it will be able to ramp up operations significantly once it makes its next two launches in November and December.

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Hayabusa-2 sees its shadow

9:24 am

Ryugu, with Hayabusa-2's shadow

During its aborted landing rehearsal last week Hayabusa-2 imaged its own shadow as it approached within 600 meters of Ryugu.

The shadow is only a little dot on the surface of the asteroid, but to have resolved it is quite impressive. The image on the right has been annotated by me to indicate the shadow.

They have not said when they will do another landing rehearsal. Meanwhile, two of the spacecraft’s mini-landers are expected to be released sometime in the next few days.

Update: Based on the raw navigation images being released in real time from Hayabusa-2, the release of the MINERVA-II-1 has begun, with Hayabusa-2 moving in towards Ryugu in preparation for that release.

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Curiosity has problem sending back its stored data

9:10 am

The science team running Curiosity found this week that the rover is suddenly unable to send back its stored data.

Over the past few days, engineers here at JPL have been working to address an issue on Curiosity that is preventing it from sending much of the science and engineering data stored in its memory. The rover remains in its normal mode and is otherwise healthy and responsive.

The issue first appeared Saturday night while Curiosity was running through the weekend plan. Besides transmitting data recorded in its memory, the rover can transmit “real-time” data when it links to a relay orbiter or Deep Space Network antenna. These real-time data are transmitting normally, and include various details about the rover’s status. Engineers are expanding the details the rover transmits in these real-time data to better diagnose the issue. Because the amount of data coming down is limited, it might take some time for the engineering team to diagnose the problem.

On Monday and Tuesday, engineers discussed which real-time details would be the most useful to have. They also commanded the rover to turn off science instruments that were still on, since their data are not being stored. They’re also preparing to use the rover’s backup computer in case they need to use it to diagnose the primary computer. That backup computer was the rover’s primary one until Sol 200, when it experienced both a hardware failure and software issue that have since been addressed.

In other words, the rover is functioning, they can communicate with it in real time, but any data stored on board for some reason is not being transmitted.

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