Tag: engineering

Vector raises $70 million more in investment capital

9:11 am

Capitalism in space: The smallsat rocket company Vector has successfully raised an additional $70 million in investment capital.

The increased funds bodes well for the company, but I am becoming increasingly concerned the company is more sizzle than steak. From the article:

With this round of funding, Vector plans to expand its sales and marketing teams. And the goal is to double its footprint in Silicon Valley. Vector is also expecting to break ground on a new state-of-the-art factory in Tucson. And Vector is advancing towards a first orbital attempt set to take place from the Pacific Spaceport Complex-Alaska soon.

Their original plan was to complete five test launches leading up to their first orbital try. Only two of those launches have flown, and it appears they are aiming to make the third launch orbital, with no clear schedule indicated. More significantly, it appears that they are not using the additional money for rocket development but for “sales and marketing.” Shouldn’t that come after the rocket is operational?

5 comments

Final 2018 SpaceX launch schedule

8:33 am

Link here. The article describes in detail SpaceX’s schedule of launches through the end of 2018, which appears now to be firming up. Several take-aways:

  • They are going to attempt for the first time the third launch of first stage booster.
  • In one of these launches, the first stage will not be recovered, even though it is a block 5.
  • The second Falcon Heavy launch has now been definitely delayed to early 2019.

A look at the overall launch schedule shows that the two Falcon Heavy launches that have been pending and were originally set for the last quarter of 2018 are now set for “early 2019.” This full schedule also lists the first unmanned flight of the Dragon manned capsule for January.

Leave a comment

Hubble gyro problem appears fixed

8:18 am

Engineers have apparently pinpointed and fixed the issue that was causing the Hubble Space Telescope’s last back up gyroscope to operate incorrectly, making it likely that the telescope will return to full normal operations shortly.

In an attempt to correct the erroneously high rates produced by the backup gyro, the Hubble operations team executed a running restart of the gyro on Oct. 16. This procedure turned the gyro off for one second, and then restarted it before the wheel spun down. The intention was to clear any faults that may have occurred during startup on Oct. 6, after the gyro had been off for more than 7.5 years. However, the resulting data showed no improvement in the gyro’s performance.

On Oct. 18, the Hubble operations team commanded a series of spacecraft maneuvers, or turns, in opposite directions to attempt to clear any blockage that may have caused the float to be off-center and produce the exceedingly high rates. During each maneuver, the gyro was switched from high mode to low mode to dislodge any blockage that may have accumulated around the float.

Following the Oct. 18 maneuvers, the team noticed a significant reduction in the high rates, allowing rates to be measured in low mode for brief periods of time. On Oct. 19, the operations team commanded Hubble to perform additional maneuvers and gyro mode switches, which appear to have cleared the issue. Gyro rates now look normal in both high and low mode.

This is wonderful news, in that it means the telescope will once again be able to point accurately enough to continue to take sharp images across the entire sky. It also highlights how close we are now to the telescope’s demise, since it no longer has a back-up gyroscope. With the next failure, which will occur eventually, Hubble will descend into one gyroscope operations, holding off its second working gyro as a backup.

10 comments

Ariane 5 launches BepiColumbo to Mercury

12:48 am

An Arianespace Ariane 5 rocket successfully launched the joint European/Japanese BepiColumbo mission to Mercury this weekend.

BepiColombo consists of two orbiters: Japan’s Mercury Magnetospheric Orbiter (MMO) and ESA’s Mercury Planetary Orbiter (MPO), both of which will be carried together by the Mercury Transport Module (MTM).

While MPO will go into an approximately 400 x 1500 km mapping orbit around Mercury, MMO will enter a highly elliptical orbit to study the planet’s enigmatically strong magnetic field.

The leaders in the 2018 launch race:

28 China
17 SpaceX
8 Russia
8 ULA
7 Europe (Arianespace)

China still leads the U.S. in the national rankings 28 to 26.

Leave a comment

First interplanetary image from a cubesat

12:39 am

One of the two MarCO cubesats launched with the InSight Mars lander has successfully taken its first picture of Mars, the first such image ever taken by an interplanetary cubesat.

The image itself is not that interesting, with Mars not much more than a dot. What makes this significant is that it proves that a small, inexpensive cubesat can be built with the capability to accurately point and take photographs during an interplanetary mission. This means that the entire field of interplanetary probes is prime for major changes, shifting from big expensive and rarely launched spacecraft to small inexpensive cubesats launching frequently and it large numbers.

Leave a comment

Russia: Next Soyuz manned flight likely not delayed

8:45 am

According to Roscosmos officials, they will likely not have to delay the next manned Soyuz launch, as they have three unmanned Soyuz launches on their schedule beforehand.

“The Soyuz rocket will be launched only after the inquiry has identified the causes of the emergency and measures have been taken to prevent such situations in the future. Under the existing rules there must be at least one unmanned launch before the flight of a manned spacecraft. We have plans for at least three launches (before the next manned mission due in early December) from the Kourou space site, the launch of an unmanned spacecraft and of an unmanned spacecraft Progress. The confirmations will be more than enough to put the next crew in space,” Krikalyov said.

Makes sense.

The real question isn’t whether they will identify the specific problem that caused last week’s Soyuz launch failure (which I have every confidence they will), but whether they will identify and fix the underlying culture that is allowing these failures to occur with greater frequency. I don’t think they can, since that culture is caused by the very way they have organized their space program, as a single giant corporation controlled by the government. Without the natural process of competition, the culture of Russia’s aerospace industry has nothing to force it to do good work.

4 comments

Moon Express and Canada cement business relationship

9:40 am

Capitalism in space: Moon Express today signed deals with seven Canadian companies, further cementing an agreement with that country’s space agency to work together to provide Canada with a lunar mission capability.

The news comes just two weeks after Moon Express had signed an MOU with the Canadian Space Agency whereby “the CSA and Moon Express will explore the possibilities of using Moon Express lunar orbiter and lander systems for potential CSA payloads and will promote possibilities for collaboration between Moon Express and the Canadian space industry and academia.”

Moon Express was co-founded by Canadian Bob Richards who has strong ties to Canada’s space sector having started his career in Canada. Richards moved to the U.S. to pursue his dream of building a company that would be an enabler for a sustained economy based on lunar resources.

Moon Express has been working for some time on developing relationships and laying the necessary groundwork, to expand into Canada. More agreements could come as result of today’s Industry Day.

The company has not said when the first mission will fly, though there are hints they are aiming for late 2019 or early 2020.

These deals however point to the future of planetary exploration. Rather than create a big lumbering space program, Canada is hiring a private company to build its lunar probe so that it gets it quickly and for little cost. I expect other nations will soon follow.

Leave a comment

U.S. astronaut describes Soyuz launch failure

9:22 am

Link here. There really isn’t any news here, but it is definitely interesting to read his perspective on the experience of returning to Earth during a launch abort. Up until now, the only humans to have experienced this have been Russians.

This article provides more info.

Meanwhile the Russians have made it clear that this crew will fly in the spring of 2019. Both were trained to do specific spacewalks on ISS, and the Russians think it wise to use that training.

Leave a comment

Rocket Lab chooses Wallops as first U.S. launch site

9:18 am

Capitalism in space: Rocket Lab has picked the spaceport at Wallops in Virginia as its first U.S. launch site.

The company is planning its first launch of Electron from U.S. soil and its Wallops facility for Quarter 3 of 2019, less than a year from today’s announcement. “We needed to get pad and support up quickly, and Wallops met the bill completely for what we needed to achieve in this time,” said Mr. Beck to NASASpaceflight.

Overall, the Wallops launch pad, known as Launch Complex 2 (LC-2), will be Rocket Lab’s second dedicated launch complex, will be capable of supporting monthly orbital launches, and is designed to serve U.S. government and commercial missions. The site will bring Rocket Lab’s global launch availability across two launch complexes to more than 130 missions per year.

It really does appear that once they successfully complete their next two launches in November and December, the company will be aiming to meet a launch cadence of at least one orbital launch per week.

Leave a comment

Atlas 5 launches Air Force military satellite

9:07 am

ULA successfully launched an Air Force military satellite early today using its Atlas 5 rocket.

You can watch the launch at the link.

The leaders in the 2018 launch race:

28 China
17 SpaceX
8 Russia
8 ULA
6 Europe (Arianespace)

China leads the U.S. in the national rankings 28 to 26. Note that Russia has now been tied by ULA in the number of successful launches this year, and has a chance of topping Russia before by year’s end, a possibility that would have been impossible only a few years ago. The Russian launch count has crashed in the past four years. Nor is Russia alone in this. ULA’s numbers have also slumped slightly. Prior to last year, ULA routinely had had a dozen launch per year. It only had 8 launches last year, and it does not look like it will a dozen again in 2018.

This slump is not because of an overall slump in launches. It is because SpaceX has grabbed the commercial market with its less expensive rockets.

2 comments

Mini-drones for the military

11:59 am

A new drone design for the military would allow vehicles to carry four miniature helicopter camera drones, capable of flying two at a time.

The Black Hornet drone feels like a movie prop. Roughly the size and weight of a sparrow, the robotic scout helicopter has already seen use with British special forces. At the 2018 Association of the United States Army exposition in Washington, D.C., Black Hornet-maker FLIR showed off the latest way to carry the drone into combat: a miniature hanger for four drones, roughly the size of a large breadbox. It’s called the Vehicle Reconnaissance System.

Like a description from a lost G.I. Joe catalog, the VRS fits four helicopters into chambers known as cassettes. The box containing cartridges full of robots can be mounted on vehicles, including people-transporting machines and also uncrewed ground vehicles. That’s right, this is a box full of robots that can go on a robot and launch more robots. It’s quite the exhibit of remote warfare.

The goal is to provide the soldier in the vehicle a way to gain information about nearby enemy positions from the air, in real time.

What is intriguing, and somewhat scary about this, is that it prefigures a time when many tiny drones will be instantly deployable, but with killing capabilities, not simply camera.

9 comments

Paul Allen dead at 65

6:22 pm

Paul Allen of Microsoft fame and the man behind Stratolaunch passed away today at the age of 65.

Allen ranked among the world’s wealthiest individuals. As of Monday afternoon, he ranked 44th on Forbes’ 2018 list of billionaires with an estimated net worth of more than $20 billion.

Through Vulcan, Allen’s network of philanthropic efforts and organizations, the Microsoft co-founder supported research in artificial intelligence and new frontier technologies. The group also invested in Seattle’s cultural institutions and the revitalization of parts of the city.

What this will mean for Stratolaunch of course cannot be predicted. Its design — using a giant airplane to air-launch payloads into orbit — is somewhat radical, a fact that generally requires the will and power of a single individual to force it to fruition. Allen’s absence here could make the completion of their effort much more difficult.

One comment

China launches two GPS-style satellites

8:43 am

In launching two more GPS-style satellites with its Long March 3B rocket, China today also did their first test of equipment to be used in a parachute system designed to recover the rocket’s first stage.

The China Aerospace Science and Technology Corporation (CASC) confirmed the mission to be a success four hours later, following direct insertion of the Beidou-3 satellites into their intended medium Earth orbits (MEO).

The China Academy of Launch Vehicle Technology (CALT) which developed the Long March 3B rocket reported that data logging and active tracking equipment was placed aboard for tests to determine to altitude and timing for future parachute landings for boosters.

The trial phase of parachute booster landings is expected in 2019. Expended rocket boosters frequently land in or near populated areas downrange of Xichang.

It is about time. The article also included a short video showing the booster wreakage that landed near a town during a previous launch. For any nation to allow rocket stages crashing near habitable areas speaks poorly of that nation.

The leaders in the 2018 launch race:

28 China
17 SpaceX
8 Russia
7 ULA
6 Europe (Arianespace)

In the national rankings China leads the U.S. now 28 to 25. I must add that with every launch China is setting a new record for itself in its annual totals. Previously its highest total of launches in a year had been 20.

2 comments

Hayabusa-2 will do two touchdown rehearsals prior to landing in January

9:37 am

In order to test whether they can bring Hayabusa-2 down to the surface within a circle only 20 meters (65 feet) across (the largest smooth landing area they have found so far on Ryugu), their engineering team has decided to first do two more touchdown rehearsals in October.

In the area where the spacecraft will touchdown, it is dangerous to have boulders with a height greater than about 50cm. Since the length of the sampler horn is about 1m and the spacecraft will be to be slightly inclined during the touchdown, there is a possibility that if a boulder with a height above about 50cm is present, it will strike the main body of the spacecraft or the solar panels. Viewed from the position in Figure 2, there is no boulder larger than 50cm in the area L08-B. L08-B is the widest part within all the candidate sites without a boulder larger than 50cm.

The difficulty is that area L08-B is only about 20m in diameter. Originally, it was assumed that a safe region for touchdown would be a flat area with a radius of about 50m (100m in diameter). This has now become a radius of just 10m; a fairly severe constraint. On the other hand, during the descent to an altitude of about 50m during the MINERVA-II1 and MASCOT separation operations, we were able to confirm that the spacecraft can be guided within a position accuracy of about 10m for a height 50m above the surface of Ryugu (Figure 3). This is a promising feature for touchdown.

Although the spacecraft can be controlled with a position error of 10m at an altitude down to 50m, there remains the question of whether this accuracy can be retained as the spacecraft descends to the surface. This must be confirmed before touchdown operations. Therefore, the touchdown itself will be postponed until next year, during which time we will have two touchdown rehearsals; TD1-R1-A and TD1-R3.

After the rehearsals in October they must wait until January to do the landing because in November and December the sun will be in-between the Earth and the spacecraft, making operations more difficult. They want to also use this time to review the results of the rehearsals to better prepare for the January landing.

Leave a comment

Curiosity sends down images for the first time in weeks

9:28 am

Good news! For the first time since September 15 Curiosity has sent back images.

The last raw images were received on Sol 2171, equivalent to September 15. Today’s images (Sol 2199) from the front and rear hazard cameras and the two navigation cameras suggest that the engineers have solved the computer issues that prevented the rover from sending its science data to Earth.

No press release has yet been released, but I suspect we shall see something shortly.

Leave a comment

Updates on Russian investigation of Soyuz launch failure

9:23 am

Three stories from Russia today on the investigation into last week’s launch failure during a Soyuz launch to ISS.

The first two simply outline additional changes in the Russian upcoming Soyuz launch forced upon them by the failure. It is already clear that the December launch of a new crew will be delayed also.

The third story has one piece of information that I think is intriguing:

The emergency commission looks into the Baikonur spaceport staff who worked on the Soyuz-FG carrier rocket preparing it for the launch with the manned capsule Soyuz MS-10 atop, but the liftoff ended up in a failure, a source said.

“Some members of the emergency commission are staying at the Baikonur Cosmodrome to investigate the circumstances of the failure of the Soyuz-FG rocket. They will have to check all the employees who were working on the rocket,” he said.

That they specifically mention the investigation of the employees who worked on both the rocket and the capsule suggests that they are seriously considering the possibility that one of those individuals might be the cause of both this failure as well as the drill hole in the Soyuz capsule now at ISS.

Nor can anyone blame them. The evidence so far surrounding the drill hole suggests it was done when the capsule was being prepared for launch at Baikonur. If there is an individual working there with an animus toward the Russian government or its space program, they might have possibility done something to this rocket as well.

Leave a comment

Chandra goes into safe mode

11:43 pm

When it rains it pours: The Chandra X-ray Observatory went into into safe mode on October 10 for reasons that are either not yet understood or have not yet been revealed.

Chandra, Spitzer, and Hubble are the three remaining of the original four great observatories proposed in the late 1980s, with the Compton Gamma-Ray Observatory the fourth. Compton was de-orbited in 2000. Spitzer’s infrared observational capabilities became limited when its cryogenic cooling gas became exhaused in 2009.

Hubble and now Chandra are both in safe mode, leaving astronomy badly crippled.

This situation is actually the fault of the astronomical community, which in the early 2000s put all its money behind the James Webb Space Telescope, leaving little for the construction of replacement space telescopes for either Hubble or Chandra. In addition, the astronomical community has continued to put is money behind similar big, expensive, and giant projects like Webb, pushing for WFIRST with its 2011 decadal survey. Like Webb, WFIRST will cost billions and take almost a decade to build and launch, assuming there are no delays.

Meanwhile, the workhorses in orbit are failing one by one.

2 comments

Update on Hubble: no real news

2:15 pm

NASA today released an update on the effort to bring the Hubble Space Telescope out of safe mode and back to full operation.

The only new information they really provide is what they will do, depending on whether they can fix the back up gyroscope or not.

If the team is successful in solving the problem, Hubble will return to normal, three-gyro operations. If it is not, the spacecraft will be configured for one-gyro operations, which will still provide excellent science well into the 2020s, enabling it to work alongside the James Webb Space Telescope and continue groundbreaking science.

In other words, if they cannot find a way to get this third gyro functioning properly, they will shut down one of the two remaining working gyros so that it can operate as a backup, and operate the telescope on one gyroscope.

I find the last section of the quote above very amusing, in a dark sort of way. Not only does NASA rationalize the sad loss of Hubble’s ability to take sharp images, it tries to rationalize the decade-long delays it has experienced building the James Webb Space Telescope. Webb was supposed to have been launched in 2011. It should have been up there already, working alongside Hubble for the past seven years.

Now, the best we can hope for is that Webb will finally reach space while Hubble is still functioning, in a crippled condition. I would not be surprised however if Webb is further delayed, and Hubble is gone before it gets into space.

One comment

Stratolaunch completes taxi test at 80 mph

9:21 am

Capitalism in space: Stratolaunch this week completed a series of taxi tests with its giant airplane Roc, reaching speeds as much as 80 mph.

This is a little less than half the speed required for take-off. It also appears that they are proceeding very cautiously with these taxi tests, increasing the speed with each new test by small amounts, about 20 to 40 mph.

The big moment will of course be when this giant plane actually takes off. It appears that might happen within a month or so.

6 comments

Rocket Lab officially opens new rocket facility

9:15 am

Capitalism in space: Rocket Lab today unveiled a new rocket production facility designed to mass produce its rockets.

The new 7,500 sq/m (80,700 sq/ft) rocket development and production facility in Auckland, is designed for rapid mass production of the Electron rocket. Adding to Rocket Lab’s existing production facility and headquarters in Huntington Beach, California, the new facility brings Rocket Lab’s manufacturing footprint to more than 4.5 acres and enables the company to build an Electron rocket every week.

The new facility was officially opened on 12 October 2018 NZDT, by Rocket Lab Chief Executive Peter Beck and special guest William Shatner, best known for his role as Captain Kirk in the Star Trek series and films.

It suddenly occurred to me that the construction of this facility might explain the long delay in Rocket Lab’s next launch. I suspect they wanted to incorporate any corrections or redesign to the malfunctioning motor controller that was identified just prior to a planned launch in June.

This also suggests that once they complete their next two launches, now scheduled for November and December, they will hit the ground running and will be aiming for frequent launches, maybe as many as once per week.

Leave a comment

Updates on yesterday’s Soyuz failure

8:49 am

The Russian investigation into yesterday’s Soyuz launch failure has tentatively identified a malfunctioning valve as a possible source of the failure.

“The state commission has tentatively established a malfunction of the fuel dump valve of the rocket’s oxidizer tank:exhaust gas coming from the valve pushes a side section away from the center section. The valve appeared to be defective and failed to function,” the source said.

The valve passed the preflight check, he said. “It was opened before the launch, and closed afterwards consistent with the procedure,” the source said.

Once the rocket is fueled, the valve dumps redundant oxygen. “It is closed several minutes before the launch. It is supposed to open after the side section separates from the central section, but that did not happen,” the source said.

The “side section” refers to the Soyuz’s strap-on boosters. The “central section” refers to its core stage. From this report it appears the failure of the valve has been linked to a collision between the stages at separation.

“There are no final versions but the primary cause is understandable and is related to the collision of a side element making part of the first stage. A collision occurred during the separation of the first and second stages,” the Roscosmos official said.

“A deviation from the standard trajectory occurred and apparently the lower part of the second stage disintegrated. The rocket stopped its normal flight and after that the automatic system did its work,” Krikalyov said.

An element of the booster’s first stage collided with the second stage, Krikalyov said. “This could have been caused by the failure of the system of the normal separation, which should have been activated. We will analyze the causes in detail,” the Roscosmos official said.

This is obviously only a preliminary result, and should be treated with caution. Meanwhile, the investigation has also launched a criminal investigation. This doesn’t surprise me, as the Russians will sometimes consider some things, such as incompetence, as falling under criminal statutes. Considering the discovery of a drilled hole on a launched Soyuz capsule only a few weeks ago, however, I think they are probably even more paranoid than normal.

Update: Russia has decided they will launch a unmanned Soyuz mission before resuming manned flights.

This is definitely going to impact ISS operations, and cancels a December manned Soyuz launch.

The Soyuz capsules attached to ISS have a 200 day lifespan in space. Thus, the crews on board cannot stay past those dates, which means if launches get delayed for a significant period the station might end up without a crew. NASA has said ISS can be operated in this manner, but I also know they want to avoid this if at all possible.

3 comments

MASCOT’s journey on Ryugu

8:31 am

MASCOT's journey on Ryugu

MASCOT’s German science team has released a summary of the lander/hopper’s results and seventeen hour journey across the surface of the asteroid Ryugu. The image on the right, reduced and cropped to post here, shows the spacecraft approach, landing, and numerous hops across the surface. If you click on the image you can see the full high resolution image.

Having reconstructed the events that took place on asteroid Ryugu, the scientists are now busy analysing the first results from the acquired data and images. “What we saw from a distance already gave us an idea of what it might look like on the surface,” reports Ralf Jaumann from the DLR Institute of Planetary Research and scientific director of the MASCOT mission. “In fact, it is even crazier on the surface than expected. Everything is covered in rough blocks and strewn with boulders. How compact these blocks are and what they are composed of, we still do not know. But what was most surprising was that large accumulations of fine material are nowhere to be found – and we did not expect that. We have to investigate this in the next few weeks, because the cosmic weathering would actually have had to produce fine material,” continues Jaumann.

The spacecraft apparently bounced eight times after first contact, then executed three hops. The rubble pile nature that is observed I think explains why the Hayabusa-2 science team decided to delay its own landing for a few months so they could figure out a plan. It really appears that Ryugu does not have any smooth flat spots, as expect.

Leave a comment

Hayabusa-2 landing on Ryugu delayed until January

9:22 am

Because of the roughness of the surface of Ryugu, the Hayabusa-2 science team has decided to delay the landing of the spacecraft on the asteroid from the end of this month until late January at the earliest.

JAXA project manager Yuichi Tsuda said they needed more time to prepare the landing as the latest data showed the asteroid surface was more rugged than expected.

“The mission … is to land without hitting rocks,” Tsuda said, adding this was a “most difficult” operation. “We had expected the surface would be smooth … but it seems there’s no flat area.”

.

This decision is a wise one. They will have the ability to land very precisely, and this will give them time to find the least risky spot. It does indicate however that the landing itself is going to be risky, which is probably why they want more time to gather data beforehand. Should the landing fail, the mission will essentially be over. This way they can maximize what they learn.

Leave a comment
1 … 285 286 287 288 289 … 512