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A gun to shoot down drones

Points of Information

A company is now marketing to the military a jamming devise, designed like a gun, that acts to shut down all commercially-made drones.

the gun is as simple as point-and-shoot, with a 30 degree cone of effect on whatever target is being aimed at. And a newer version of the device is even attachable to an assault rifle, similar to how one would attach an M203 grenade launcher. “You point in that direction, and when the drone flies into the cone … the cheaper drones would just crash. But the better ones will fly back to base,” he added. “It can also track the drone and follow it back to home and see who was actually flying it.”

The jammer, which really isn’t a gun, is aimed at disarming the commercial drones used in the Middle East by the radical Islamic fighters, who don’t have the technology to build their own more sophisticated weapons. Sadly, I can see a time in the future where ordinary citizens might want one too.

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A real look at Mark Zuckerberg’s testimony to Congress

Points of Information

The satire site the Babylon Bee has been hitting home runs all week with a series of posts poking fun at Facebook’s founder Mark Zuckerberg in connection with his appearance this week at a Senate hearing.

From the last story:

Passing a set of tablets around the room, the tech billionaire asked every person present to read and accept the full 335,000-word, 6-point-font document before they could proceed. “If you would please just click the button signing all of your personal data over to me, yada yada yada, we can get this show on the road,” Zuckerberg said calmly before taking a sip of water. “It’s your basic, no-frills TOS. Nothing to worry about in there, I promise.”

The congressmen quickly skimmed the first of the 1,342 digital pages before clicking “accept” as per their customary approach to signing important legislation as part of their daily jobs, according to sources present.

We must remember that Facebook had previously tried to censor the Bee for publishing “fake news,” and the Bee has clearly not forgiven them for it.

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Jupiter’s North Pole, as seen in infrared by Juno

Points of Information

The Juno science team has released an animation that shows, in infrared and in three dimensions, the storms of Jupiter’s north pole.

The link has three videos. One shows the gas giant’s surprisingly irregular magnetic field, as found by Juno. The first and third show a low and a high fly-over of the north pole, in infrared. I have embedded both fly-overs below the fold. First watch the high fly-over, which is the first video. This will make the low fly-over more understandable as it flies over the eight smaller storms that encircle the pole’s central vortex.
» Read more

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NanoRacks outlines its private space station plans

Points of Information

Capitalism in space: NanoRacks, which already makes money launching private payloads to ISS, has revealed its plans for building its own private space station using converted Atlas 5 upper stages.

This project was previously called Ixion, but they have dropped that name, and will now call the first station Independence-1.

They have a contract with NASA for the initial development, and hope to convince the agency to pay them to next build a full-size test prototype. The video at the link to me was exceedingly unconvincing however. It shows a robot beginning the process of refurbishing a used upper stage while in orbit, and simplifies the process to an almost ludicrous degree. While I surely believe it can be done, it will not be simple. The difficulties should not be dismissed.

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New York to jail man for possessing a legal gun

Points of Information

Fascist New York: A Hawaiian man is going to jail for two years, simply because he mistakenly brought a legally purchased gun into New York City, locked safely in his car.

Officers interviewed Camp’s girlfriend who told them, out of spite, he says, about a weapon he had in his car. In a small compartment behind the seat of his ’85 Chevrolet El Camino, Camp stored a Hi-point .45 pistol he bought legally in Ohio for $140 and that he kept locked away in a safe. When the officers found the weapon, Camp was arrested and charged with a Class C Felony.

His girlfriend had a far-left stance on guns. She said it frightened her to have one in their apartment and so Camp kept it locked safely away in the car to appease her, he explained.

Even his former girlfriend didn’t realize the draconian nature of New York’s gun laws. “I’ve never used it to menace or threaten anyone, especially not her,” Camp said. “She even later told me she regretted turning me in to the police, saying she believed I would ‘just pay a big fine.’”

No matter. New York City does not recognize the second amendment of the Bill of Rights. You do not have the right to bear arms there, even though the threat of gun violence from criminals is far higher than most of the rest of the country.

Note the absurdity of this. New York’s draconian gun control laws were supposedly passed to prevent criminals from getting guns. Instead, they are being used to jail innocent citizens whose only reason for owning a gun is to protect themselves from those illegally armed criminals.

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A Martian snake of collapsed hills

Essays And Commentaries

A Martian snake of collapsed hills

Close-up of collapsed hills

Time to once again delve into this month’s release of high resolution images from Mars Reconnaissance Orbiter. The image above, cropped, rotated, and reduced in resolution to post here, shows a string of strange mounds or hills, each with similar collapse features on their tops. If you click on the picture, you can see the full resolution image, rotated properly with north up. You can also go to the MRO post, which provides some additional information.

The white box indicates the location of the cropped close-up, at full resolution, to the right. This area is typical across the entire snake-like ridge. You have these mounds or hills, each with chaotic depressions at their tops. The depressions suggest that this ridge follows an underground void, like a lava tube. The ridge-like nature of the line of hills also suggest that this tube has been exposed by erosion over time, with the surrounding terrain more easily blown or washed away while the more resistant ridge remains.

At the same time, the line of hills is baffling. Why would a lava tube expand periodically to form something that looks like a string of pearls?

The location of this snaking ridge provides some additional context.
» Read more

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Status update on Mars Reconnaissance Orbiter

Points of Information

Link here. The story is focused on the decision by NASA to hold off launching a replacement for MRO and instead keep it operating for another decade. In telling this story, however, the article also provides us a detail look at the spacecraft’s present condition.

[A]ging batteries and gyroscopes, used to store electricity and aid navigation, will have to be carefully watched in the coming years to keep the mission going. “We found that they weren’t charging at full capacity,” Tamppari said of the batteries. MRO charges its batteries through its solar arrays while in sunlight. During night passes over Mars, the orbiter draws electricity from its batteries for about 40 minutes during each two-hour lap around the planet. The spacecraft now charges its batteries higher than before, NASA said, and engineers sent up commands for MRO to reduce the draw on the batteries while in shadow.

MRO’s two inertial measurement units are also showing signs of their age. Each redundant unit contains three gyroscopes and three accelerometers, feeding data about the spacecraft’s orientation to on-board computers. One measurement unit likely in the final months of its useful lifetime, Tamppari said, and the other is showing signs of degradation.

Ground controllers found a work-around by implementing an “all-stellar” navigation mode on MRO in March. The new technique allows the orbiter to sense the positions of the stars to determine which way it is pointing. “In all-stellar mode, we can do normal science and normal relay,” said Dan Johnston, MRO project manager at JPL, in a statement released in February. “The inertial measurement unit powers back on only when it’s needed, such as during safe mode, orbital trim maneuvers, or communications coverage during critical events around a Mars landing.”

There’s more at the link. Since MRO is also used as the main communications relay satellite between the Martian ground-based probes and the Earth, the story also outlines the communications capabilities of all spacecraft presently orbiting Mars. All told, it seems that if MRO fails the research on the surface will be significantly impacted, even if the rovers and landers are all still working.

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Absurd monument to Yuri Gagarin lambasted

Points of Information

A new monument to honor Yuri Gagarin in Belgrade, Serbia, is meeting with intense criticism and ridicule because of the absurd proportions between the statue, which is of Gagarin’s head, and its overly tall pedestal.

The bust of Yuri Gagarin was ordered by the city council last year, and was put up on a street that bears his name, the Blic news website reports.

But its appearance – a tiny bust on top of a tall plinth – has been met by a hugely negative reaction, the paper says. “The only way you can see it clearly is to launch yourself into the sky,” the Noizz website says. “While this is somewhat symbolic,” adds writer Ivana Stojanov, “there’s certainly no common sense on show”.

You must click on the link to see this.

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Issue with thermometers on Parker Solar Probe

Points of Information

As NASA prepares the Parker Solar Probe for its summer launch, engineers are reviewing an issue with the spacecraft’s thermometers.

As those preparations continue, officials are studying problems with devices known as platinum resistance thermometers that are part of the spacecraft’s thermal control system. Those devices have suffered a higher-than-expected failure rate, according to a presentation at an April 5 meeting of NASA’s Heliophysics Advisory Committee.

The thermometers are lightweight, highly sensitive temperature sensors used to help provide feedback to the spacecraft’s cooling system and solar arrays, NASA spokesman Dwayne Brown said April 9. “We put all spacecraft through a rigorous test program to make sure all systems are working as designed and it is normal for a test program to uncover issues.”

“The team is looking very carefully at whether any change is needed,” Peg Luce, acting director of NASA’s heliophysics division, said at the meeting. The issue, she said, was debated “quite significantly” at a review last week to approve the shipment of the spacecraft to Florida, including whether to delay that shipment to study the problem. “There are certain, possible fixes if we need to fix something that could be done at the Cape, so the decision was to go ahead and ship,” she said.

This issue is especially critical as the spacecraft is intended to fly as close as four million miles from the Sun. If these thermometers fail too easily, the spacecraft will not be able to monitor its temperature properly, and it will likely fail much sooner than planned.

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China successfully launches three military satellites

Points of Information

The launch race: China today successfully launched three military satellites, using its Long March 4B rocket.

As is typical of Chinese military launches, no information was released about the satellites, and there was no publicity about the launch prior to liftoff. This launch however puts China ahead of the U.S. in total launches in 2018, 11 to 10. The leaders in the 2018 launch standings are as follows:

11 China
7 SpaceX
3 Japan
3 Russia
3 ULA
3 Europe

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Europe’s Trace Gas Orbiter achieves operational orbit around Mars

Points of Information

After a year of aerobraking to lower its orbit, the European Space Agency’s Trace Gas Orbiter has reached its planned orbit around Mars, and is about to begin studying the red planet’s atmosphere.

The primary goal is to take a detailed inventory of trace gases – those that make up less than 1% of the total volume of the planet’s atmosphere. In particular, the orbiter will seek evidence of methane and other gases that could be signatures of active biological or geological activity.

On Earth, living organisms release much of the planet’s methane. It is also the main component of naturally occurring hydrocarbon gas reservoirs, and a contribution is also provided by volcanic and hydrothermal activity. Methane on Mars is expected to have a rather short lifetime – around 400 years – because it is broken down by ultraviolet light from the Sun. It also reacts with other species in the atmosphere, and is subject to mixing and dispersal by winds. That means, if it is detected today, it was likely created or released from an ancient reservoir relatively recently. Previous possible detections of methane by ESA’s Mars Express and more recently by NASA’s Curiosity rover have been hinted at, but are still the subject of much debate.

The Trace Gas Orbiter can detect and analyse methane and other trace gases even in extremely low concentrations, with an improved accuracy of three orders of magnitude over previous measurements. It will also be able to help distinguish between the different possible origins. [emphasis mine]

The highlighted sentence is important. Pinpointing a region where methane is concentrated will allow scientists to better understand where it is coming from, and what is causing its release. It could be microbiological life, but it also could be from active volcanic processes. Finding either or both would be significant, to put it mildly.

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Two investigations blame Northrop Grumman for Zuma failure

Points of Information

Two independent investigations have now placed the blame for the failure of the classified Zuma satellite to reach orbit on Northrop Grumman, not SpaceX.

Two independent investigations, made up of federal and industry officials, pointed to Northrop’s payload adapter as the cause of the satellite’s loss, the report said, citing people familiar with the probes. The payload adapter is a key part of deploying a satellite in orbit, connecting the satellite to the upper stage of a rocket.

…The investigations tentatively concluded that onboard sensors did not immediately communicate to ground systems that the satellite did not separate from the rocket, according to the Journal. Unbeknownst to officials at the time, the planned return of the rocket’s upper stage — a method of disposal to avoid adding space debris around the Earth — brought the satellite back down with it. By the time the satellite separated from the rocket it was too late, putting Zuma too low in orbit to save, according to the report.

I still have a nagging suspicion that Zuma actually did reach orbit, and this entire story that it never separated from the upper stage is all a disinformation campaign to help distract people from the satellite’s existence in orbit. At the same time, by this time I don’t put much faith in my own suspicions. These two reports appear to settle the matter.

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Sunspot update for March 2018: the sun crashes!

Essays And Commentaries

It surely looks like the solar minimum has arrived, and it has done so far earlier than expected! On Sunday NOAA posted its monthly update of the solar cycle, covering sunspot activity for March 2018. Below is my annotated version of that graph.

March 2018 was the least active month for sunspots since the middle of 2009, almost nine years ago. In fact, activity in the past few months has been so low it matches the low activity seen in late 2007 and early 2008, ten years ago when the last solar minimum began and indicated by the yellow line that I have added to the graph below. If the solar minimum has actually arrived now, this would make this cycle only ten years long, one of the shortest solar cycles on record. More important, it is a weak cycle. In the past, all short cycles were active cycles. This is the first time we have seen a short and weak cycle since scientists began tracking the solar cycle in the 1700s, following the last grand minimum in the 1600s when there were almost no sunspots.
» Read more

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Homeland Security to track journalists and bloggers in the media

Points of Information

We get our own KGB! Homeland Security has requested bids on providing a database that will continually track of activities of “journalists, editors, correspondents, social media influencers, bloggers etc.”

The DHS’s “Media Monitoring” plan, which was first reported by FedBizOpps.gov, would give the contracting company “24/7 access to a password protected, media influencer database, including journalists, editors, correspondents, social media influencers, bloggers etc.” in order to “identify any and all media coverage related to the Department of Homeland Security or a particular event.”

The database would be designed to monitor the public activities of media members and influencers by “location, beat and influencers,” the document says.

The chosen contractor should be able to “present contact details and any other information that could be relevant including publications this influencer writes for, and an overview of the previous coverage published by the influencer.”

A Homeland Security official claimed this was “standard practice” but he was either ignorant or lying. This is a new tool for spying on journalists while also obtaining information that can be used against them for political purposes. Any government agency that had proposed such a thing to past American generations would have found itself very quickly shut down. The idea of the government tracking individuals reporting the news would have been considered disgusting and a violation of numerous amendments in the Bill of Rights.

Today however, not so much. We need our KGB, and we are going to get it, come hell or high water!

An added note: Most of the outrage about censorship and spying that we see today in the press is focused on Google, Facebook, and the unsavory stuff these big software companies are doing. These are private efforts, however, and there is a simple solution to stopping their bad behavior: Their customers have to find a competitor who doesn’t do it and switch services.

Unfortunately, we instead have increasing calls for the government to regulate and even break up these companies. This is exactly not what we should do, as it will only place more power in that government. If anything, it will provide justification for the government to spy on journalists and regulate them, as illustrated by this newly proposed law in fascist California.

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Astra Space’s first suborbital test launch scrubbed

Points of Information

Capitalism in space: The first suborbital test launch of a new smallsat rocket company, Astra Space, was scrubbed this past weekend for unstated “technical” reasons.

The launch would have also been the first commercial launch from the Kodiak, Alaska spaceport. There is no word when they will try again.

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“If you have wrongthink, you will not be allowed.”

Essays And Commentaries

The fascist, intolerant, and oppressive nature of today’s leftist culture has now gotten so bad that The Atlantic, a liberal publication long considered a reasonable intellectual voice from the left, can no longer tolerate for more than two weeks the hiring of a conservative, even though that conservative, Kevin Williamson, was also a vehement opponent of Donald Trump.

The quote that forms the title of this essay however comes not from the above Williamson story, but from a cogent essay by Ben Domenech, publisher of The Federalist about that intolerant leftist culture. As he says,

This story [Williamson’s firing] is a predictable continuation of the left’s ownership not just of media but indeed of all institutions. It is depressing. It is predictable. And it is where we are as a country now. It is not confined to the realm of ideas. Eich, Damore, Williamson and others are subject to blacklists and HR reports and firing in every arena of industry and culture. If you have wrongthink, you will not be allowed for long to make your living within any space the left has determined they own – first the academy, then the media, then corporate America, and now the public square. You will bake the cake, you will use the proper pronoun, and you will never say that what Planned Parenthood does is murder for hire, and should be punished as such under the law.

As Domenech notes, Williamson’s firing is only one example of a legion of similar stories. There is the fascist intolerance of modern academia for example. Or we can talk about the hateful scapegoating of innocent NRA members, blaming them for a murderer’s violence merely because they wish to defend their Constitutional rights as specifically outlined in the Bill of Rights.

Or maybe we should mention the hate and violence committed against children and students, merely because they either wear a “Make America Great Again” t-shirt or carry signs supporting Trump.

I wish these were only isolated examples. They are not. For most of the second half of last year I was able to post weekly updates listing anywhere from six to several dozen new stories describing this hateful leftist culture. Here are just a few more that I gathered in mid-March but found too depressing to report at the time:
» Read more

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A detailed analysis of the recent seemingly pro-Israel remarks by the Saudi leader

Points of Information

Link here. The analysis takes a close look at what Saudi Crown Prince Muhammad bin Salman really said about Israel’s right to exist, and found that, while much of what he said was hopeful, it was couched in enough vagueness that no one should celebrate too wildly.

In short, Muhammad said nothing revolutionary. He bore no glad tidings of a strategic shift in the Saudi Islam or in the manner that the Saudis relate to the world, including the Jews.

Which brings us back to the main question. What did we learn from this interview? The most significant thing that came out of the interview is that Saudi Arabia’s crown prince is very keen to cooperate with the US and with Israel in everything related to defeating what he refers to as the “triangle of evil.”

The three sides of his triangle are Iran, the Muslim Brotherhood, and the terrorist groups the Muslim Brotherhood has spawned, including al-Qaeda and Islamic State.

Saudi Arabia is still an Islamic country run by the corrupt and violent Arabian culture. As noted elsewhere in the article,

The problem is that Muhammad’s regime is built on shaky foundations. Muhammad instigated a blood feud with powerful forces within his family when he carried out a string of arrests last year. Among those arrested were several prominent princes.

Rhode [a Middle East expert] explains that the Saudi ruling clan divvied up the organs of government among branches of the family. For instance, one branch controls the Defense Ministry, another controls the Education Ministry, and so on down the line.

“In the Islamic world, humiliation is worse than death,” Rhode notes. “When Muhammad arrested the other princes, he humiliated them,” Rhode says. “And they will never forgive him. They will wait for the day they can exact revenge for their humiliation even if it only comes when their great-grandchildren have succeeded them.”

We cannot trust them very much, but we can take advantage of their internal conflicts to push them in a more reasonable direction.

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NOAA claims it is streamlining its remote sensing licensing operations

Points of Information

We’re here to help you! The NOAA office that recently demanded that it has the legal power to regulate all camera images from space announced this week that it has vastly streamlined its licensing process.

Really? Let’s take a look at their own numbers:

Samira Patel, an analyst with the Aerospace Corporation supporting CRSRA [Commercial Remote Sensing Regulatory Affairs at NOAA], said that in 2015 the average review time for a license application was 210 days, with only 1 of 15 applications completed within the 120-day time limit established in federal law. In 2016, that decreased to an average of 140 days, with 5 of 12 applications reviewed within 120 days.

Last year, Patel said the office completed reviews of license applications on an average of 91 days. Only 2 of 16 applications took more than 120 days, she said, “and that was only by a few days.” [emphasis mine]

My heart be still. It now takes them only three months on average to get a permit approved. Imagine how fast they’ll do it when they have to approve every tourist image taken of Earth from the many proposed private space stations.

The article does note that the Trump administration is reviewing the entire permitting process for commercial space, and that this responsibility, as well as the FAA’s licensing responsibility, could soon be merged and moved to the Department of Commerce. I hope that, in the process of this rearrangement, they throw out this new power-grab. The government has no business licensing any image-taking by any private entity.

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NASA expands first manned Starliner mission

Points of Information

NASA has modified its contract with Boeing to allow its first manned Starliner test mission to add an astronaut and extend the mission’s length so that it more resembles an operational flight to ISS.

NASA is considering adding a third crew member to the Starliner’s “Crew Flight Test” and could extend its trip to the International Space Station from two weeks up to six months, the length of a typical ISS expedition. The potential changes, outlined in a contract modification with Boeing, could help NASA maintain its presence on the International Space Station through 2019 and beyond.

NASA’s last purchased ride aboard a Russian Soyuz spacecraft, upon which the U.S. has relied for access to the ISS since the shuttle’s retirement in 2011, is scheduled to launch in the fall of 2019.
Boeing’s new Starliner spacesuit features lightweight fabric, slim gloves and sneaker-like boots. But Boeing’s Starliner and SpaceX’s Crew Dragon may not be certified to fly four-person crews until after that. “This contract modification provides NASA with additional schedule margin if needed,” said Bill Gerstenmaier, head of human spaceflight operations at NASA headquarters in Washington. “We appreciate Boeing’s willingness to evolve its flight to ensure we have continued access to space for our astronauts.”

Doing this makes some sense, but I wonder why NASA chose to do it with Boeing’s Starliner instead of SpaceX’s Dragon. Starliner has never flown in any form, while the manned Dragon is based on SpaceX’s well tested design.

I suspect NASA will soon modify its SpaceX contract as well. It makes sense. Once you put humans on board, you might as well give yourself the option to do a full mission.

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Ariane 5 launches two satellites

Points of Information

Europe’s Ariane 5 rocket today successfully placed two communications satellites in orbit, its first launch since January when the rocket placed two satellites in the wrong orbit.

Arianespace did launch a Soyuz rocket in the interim, but this launch signals the return to flight for Ariane 5.

The leaders in the 2018 launch standings:

10 China
7 SpaceX
4 Russia
3 Japan
3 ULA
3 Europe

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First SpaceshipTwo powered flight since accident

Points of Information

Capitalism in space? Virgin Galactic today successfully completed the first powered test flight of VSS Unity, the first such test flight since the flight accident that destroyed the first SpaceShipTwo and killed on pilot in October 2014.

VSS Unity was dropped from its WhiteKnightTwo mothership from about 50,000 feet (15,000 meters) over the mountains about 20 miles (32 kilometers) north of the Mojave Air and Space Port in California. Pilots David Mackay and Mark “Forger” Stucky fired Unity’s hybrid engine for 30 seconds, boosting the vehicle to a top speed of Mach 1.87 and a maximum altitude of 84,271 feet (25,686 m) before gliding back to the runway at the spaceport, Virgin Galactic representatives said.

During the descent, the crew deployed SpaceShipTwo’s feather system, which reconfigures the ship into a high-drag shuttlecock by moving its twin tail booms. The feather will be used to soften the vehicle’s re-entry into the Earth’s atmosphere during spaceflight.

They say that they hope to begin commercial flights later this year, but I remain exceedingly skeptical.

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Another space station hotel company enters the market

Points of Information

Capitalism in space: A new space station hotel start-up, Orion Span, hopes to launch their first module by 2021, and begin accommodating guests by 2022.

Aurora Station will accommodate four paying guests and two crewmembers; these latter personnel will likely be former astronauts, Bunger said. Most of the guests will probably be private space tourists, at least initially, but Orion Span will be available to a variety of customers, including government space agencies, he added.

And the space hotel will get bigger over time, if everything goes according to plan. As demand grows, Orion Span will launch additional modules to link up with the original core outpost, Bunger said. “Our long-term vision is to sell actual space in those new modules,” he said. “We’re calling that a space condo. So, either for living or subleasing, that’s the future vision here — to create a long-term, sustainable human habitation in LEO [low Earth orbit].”

This makes three companies vying to build the first private space stations, with Bigelow and Axiom Space already in the game.

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Revisiting Biosphere 2

Essays And Commentaries

Biosphere 2

This week Diane and I have a friend visiting from back east. As locals generally do when guests visit, we used this visit as an excuse to go sightseeing at local attractions that we somehow never got the time to visit on our own.

So on Tuesday we drove north to take a tour of Biosphere 2, what has been called “a giant space-age ark in the middle of the desert.” The idea, as sold heavily to the public when it was built in the late 1980s and early 1990s, was that eight people would try to live in a closed system for two years, demonstrating the technology needed to both build colonies on other worlds as well as protect the environment here on Earth.

The system wasn’t really closed however (power came from outside), and during the first two year mission it seemed they were somewhat lax about keeping the system closed.

One Biospherian accidentally cut off the tip of her finger and left for medical care. When she returned, she carried in two duffle bags of supplies to the supposedly self-sustaining environment (which presumably would not have been feasible on, say, Mars).

There were also financial issues, as mentioned by our tour guide and confirmed by news stories. Its backer, Texas oil man Edward Bass, spent somewhere between $150 to $200 million. It seems however that the managers running Biosphere 2 didn’t keep good books, and when Bass asked for an accounting they couldn’t provide it. Instead, they attempted to sabotage the project’s second mission.
» Read more

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A spray of volcanic ejecta on Mars?

Essays And Commentaries

pit features on floor of crater

Time for some more weird Mars geology! Today the science team for the high resolution camera on Mars Reconnaissance Orbiter released its monthly batch of new images. There is a lot of interesting stuff buried therein, some of which I will feature periodically in the next month.

The image on the right, reduced in resolution to post here, is a good example. (If you click on the image you can see the full resolution version.) It shows a scattering of pits in three specific areas on the crater floor, all in a line going from the northeast to the southwest. Yet, the rest of the crater floor lacks similar pits, and is either very smooth or has a mottled appearance. Both the smooth and the mottled areas appear to have a very faint trend going from the northwest to the southeast, which to my eye appears caused by the general wind direction that flows across the crater floor.

Even more intriguing, the pits in these three areas appear to be mostly oblong and also trend from the northeast to the southwest, cutting across the general trend of the rest of the crater floor. You can see this in the cropped closeups from the full resolution image below, showing the two boxed areas indicated on the image on the right.
» Read more

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