Tag: spaceflight

Iridium announces its own alternative to GPS

3:46 pm

The competition heats up: Iridium has announced the availability of its own location technology comparable to GPS and using the company’s constellation of satellites.

Iridium Communications Inc. has introduced its Satellite Time and Location (STL) service, an alternative or complement to traditional indoor and outdoor location-based technologies, and declared it ready for use. STL’s position, navigation and timing (PNT) technology is deployed through Iridium’s 66 cross-linked, low-earth orbit satellite constellation. Through Iridium satellites and in GNSS receivers, STL technology can work to verify GPS, GLONASS, Galileo and other navigation services, and also can serve as an alternative for those services when GPS signals are degraded or unavailable. STL also can provide an alternative source of time when testing GPS signals.

Essentially, for practically nothing, using satellites and technology already in orbit, they have created their own system that can both compete and complement the expensive government-built GPS systems.

2 comments

House committee reshapes NASA budget

8:53 am

The House appropriations committee has outlined its recommendations for NASA’s 2017 budget.

Like the Senate the House is pushing more money for SLS and is demanding NASA use it to fly two missions to Europa in the early 2020s (likely delaying SLS’s first manned mission), In addition, the House wants NASA to abandon any plans for an asteroid mission and instead go back to the Moon. They also pumped up the planetary program, and express reservations about the manned commercial program.

Finally, in a wonderful example of congressional micro-managing, the committee ordered NASA to begin work on flying an interstellar mission to Alpha Centauri by the 100th anniversary of Apollo 11.

While some of the changes the committee is recommending (increasing planetary research funding for example) make sense, the overall priorities of Congress continue to appear to me to be misplaced. Their continuing emphasis on SLS while questioning commercial space illustrates their focus on pork rather than actual accomplishments. And their continuing effort to micromanage many NASA missions does not bode well for the success of those missions.

There is one takeaway from this House budget recommendation that most news sources are missing: The first manned flight of Orion is almost certainly not flying in 2021. I have seen numerous indicators in the past four months suggesting that NASA is going to delay it, and this budget recommendation’s insistence that NASA use SLS to fly Europa missions in 2022 and 2024 almost guarantees that delay.

11 comments

More weird Pluto geology

9:13 am

fretted terrain

Cool image time! The New Horizons science team has released an image taken during the spacecraft’s fly-by of Pluto in July 2015 showing what they are calling “fretted terrain”.

The image above is a cropped reduced section of that image. It shows the strange transition zone between the higher elevation bright areas and the lower dark plains. As they note,

New Horizons scientists haven’t seen this type of terrain anywhere else on Pluto; in fact, it’s rare terrain across the solar system – the only other well-known example of such being Noctis Labyrinthus on Mars. The distinct interconnected valley network was likely formed by extensional fracturing of Pluto’s surface. The valleys separating the blocks may then have been widened by movement of nitrogen ice glaciers, or flowing liquids, or possibly by ice sublimation at the block margins.

In other words, they really don’t know what is going on.

Leave a comment

United Kingdom cancels spaceport competition

8:29 am

The competition heats up: The United Kingdom has cancelled its spaceport competition to chose one spaceport and instead has announced it will allow any one of the competing locations to operate if they can want and can meet some licensing requirements.

In other words, instead of the government dictating one location as the nation’s spaceport, it will allow different locations to compete for the space launch business.

The link has few details, though a closer look at subject of the British space effort can be found here.

One comment

India test flies its first spaceplane prototype

8:15 am

The competition heats up: India this morning successfully completed a test flight of its first spaceplane engineering prototype.

After a 90sec burn, the booster delivered the RLV-TD to the proper altitude before separating from the prototype and destructively fall back to Earth in the Bay of Bengal. Meanwhile, the RLV-TD continued on, falling back into Earth’s atmosphere at hypersonic velocity. During this hypersonic test, the RLV-TD pitched its nose up relative to the horizon and direction of travel – just as the Space Shuttles did during atmospheric entry. This allowed engineers to gather valuable in-flight data surrounding the performance of the vehicle’s thermal protection system (600 heat-resistant tiles and a carbon-carbon nose), its aerodynamic characteristics during hypersonic flight, and inform the overall design of the eventual full-scale RLV.

The prototype was designed to test the flight characteristics of the spaceplane, not its landing capabilities. If all went as planned, it would have glided horizontally into the ocean, as if it was landing on a runway, but then sink.

Leave a comment

SpaceX, Lockheed Martin, and Mars

10:21 pm

Two stories this week illustrate the difference between lobbying the government to get anything accomplished, and doing it yourself with the goal of making money from it from private customers.

In the first case SpaceX is planning to fly a Dragon capsule to Mars, using its Falcon Heavy rocket, and do it by 2018. It would not be manned, but would do the initial engineering testing for later manned missions, using larger interplanetary spacecraft. SpaceX is not asking the government to help pay for it. They are only making sure they have dotted all the legal “I”s required. The goal is to build spacecraft that can take anyone to Mars who is willing to pay for the flight.

In the second case Lockheed Martin is proposing a big government program to put six astronauts in orbit around Mars, in 2028. They haven’t really built anything yet to do this, they merely are lobbying the federal government to pay for it.

Which do you think is more likely to happen? Anyone who reads Behind the Black knows that I choose SpaceX. For 40 years I have seen many different variations of Lockheed Martin’s proposal, all of which came to nothing. They are powerpoint proposals, not real engineering, designed to wow Congress and NASA and get funding for the company. Nothing will ever be built, since the actual construction is so far into the future and so untested that it is impossible to predict what will really happen.

SpaceX however is planning a real mission, which is being designed to lay the groundwork for later more complex attempts. Rather than propose something big for far in the future, they are building something reasonable and doable now. Moreover, they aren’t lobbying the government, they are advertising their skills to the entire world, with the goal of convincing everyone to buy their very real product.

UPDATE: I should add a link here to Orbital ATK’s proposal in Congressional hearings on Monday to use their Cygnus capsule to build a cislunar space station by 2020. Like Lockheed Martin, they are lobbying Congress to build a mostly powerpoint concept. Why don’t they instead make an investment of their own money, like SpaceX, to send some Cygnus capsules to lunar space and demonstrate the concept, while also learning what needs to be done? I would have greater faith in the reality of their concept if they did that.

5 comments

Status of the third recovered Falcon 9 first stage

9:17 pm

The recovered first stage from SpaceX’s last Falcon 9 launch experienced significant wear and tear during its high speed descent and landing.

They do not think they will be able to use the stage again, but will instead test it to determine the engineering tolerances that need to be met to make recovery and reuse in these situations more likely. The data will also help them increae the likelihood of reusability on launches that are less stressful.

Posted from Belize.

23 comments

Congress demands Air Force spend less and more at the same time

5:38 am

A House budget report has cut the Air Force launch budget while simultaneously requiring the Air Force to favor more expensive launch companies.

In addition to cutting the funding available for new launch contracts, House appropriators also want the Air Force to consider “the best value to the government” in evaluating bids.

ULA has been pushing for the best-value approach since it sat out last fall’s GPS-3 launch competition saying it couldn’t win a price shootout against SpaceX, which will launch the satellite which was awarded an $82.7 million contract last month for a May 2018 launch of a GPS-3 satellite. That contract was awarded as part of a best value source selection. “We do not yet feel we are in a position to win price-only competitions with our competitor,” Tory Bruno, ULA president and chief executive, said in a March interview with SpaceNews. “We believe we have better performance, reliability and schedule certainty.” Those traits would carry greater weight in a best-value competition.

Only our precious Congress. On one hand they cut the budget for launches because they think the Air Force is wasting money On the other they demand that the Air Force spend extra millions on launch contracts so that the company they favor, ULA, gets the work. One would almost think they do not have the nation’s interests in mind..

Leave a comment

Airbus initiates smallsat launcher project

9:25 am

The competition heats up: Airbus has begun a project to develop a smallsat commercial launch rocket, competitive with Rocket Lab’s Electron and Virgin Galactic’s LaunchOne, aimed at the cubesat and nanosat satellite market.

The source for the story was unnamed, and also gave few details, so it is hard to know how real this is. What I gather however is that we might be seeing the beginnings of a long term split in the launch market, with one set of big rockets designed to launch human-related payloads, including humans, and a second set of small rockets focused on launching unmanned satellites.

13 comments

ULA’s CEO explains why they are retiring Delta

9:06 am

Tory Bruno, the CEO of ULA, explained in an op-ed today why his company is discontinuing its use of Boeing’s Delta family of rockets and focusing exclusively on Lockheed Martin’s Atlas 5 and its eventual replacement, the Vulcan Centaur.

Delta is an amazing rocket, but it’s costly to produce. Its burnt-orange foam insulation has to be applied by hand. Its production line is bigger and more complex than Atlas’s. And its components are pricier.

Bruno’s purpose with this op-ed is to convince Congress to leave his company alone while they develop the new Vulcan rocket. Congress keeps proposing outlawing use of the Atlas 5 with its Russian engines, and Bruno does not want that, at least not until the Vulcan is flying. He is also trying to reduce his costs by discontinuing Delta, which in turn would allow him to lower prices for his Atlas 5 and compete more effectively with SpaceX.

Though I understand Congress’s concerns, I do find it sad that in modern America a private businessman has to lobby Congress for the right to run his company as he sees fit.

7 comments

First manned Starliner flight delayed

8:53 am

Boeing has revealed that the first manned flight of Starliner will be delayed until 2018.

This delay for Boeing is not really a surprise. Unlike SpaceX, the company had done very little actual development work on the capsule before winning its contract from NASA. They therefore have a lot more to do to become flight worthy. My one worry is their contract. If the contract is fixed price, as with the original cargo contracts awarded SpaceX and Orbital ATK, Boeing will have no incentive to delay, as they won’t be paid anything until they achieve specific milestones and will get no additional monies to cover the added costs of the delay. If the contract is cost-plus, however, NASA’s traditional contract system used for SLS, Orion, and almost every other boondoggle since the 1960s, then Boeing will be paid regardless of the delay, and NASA will also be on the hook for paying the additional delay costs, thus giving Boeing an incentive to slow walk the construction.

I think the contract was fixed-price, but am not sure. Anyone out there have an answer?

5 comments

A Kuiper belt object turns out to be large

5:44 pm

New observations of Kuiper Belt object 2007 OR10 have found it to be the largest unnamed object in the solar system, 955 miles across and about two-thirds the diameter of Pluto.

It also appears to rotate slowly, with each day about 45 hours long.

These results are decidedly uncertain, so don’t put much money on them. Nonetheless, the data continues to suggest that there are a lot of objects out there beyond Pluto.

One comment

Texas town regulates SpaceX engine tests

9:36 am

Nice rocket company you got here. It would be a shame if something happened to it: The city council of McGregor, Texas, has imposed new regulations and fines on SpaceX should it perform rocket engine tests at its facility there in a manner the council does not like.

Though the city council was entirely within its rights, and the ban on night testing make sense, in reading the list of fines and regulations I couldn’t help thinking that they will in the end only accomplish one thing: to drive SpaceX away. This regulation in particular stood out:

The actual launching of any vehicle into the atmosphere or into space is specifically prohibited at the McGregor facility.

This would appear to ban SpaceX from doing any more hover tests of the Falcon 9 first stage. For an innovative company like SpaceX to operate as it wants, it needs the freedom to operate as it wants. These restrictions could prevent the company from doing so.

13 comments

More problems at Khrunichev

9:00 am

Construction of the second Angara rocket, built by the Russian organization Khrunichev, is behind schedule by at least three months.

[T]he reason for the lag is the delay with the supply of components, as well as the production setup in Omsk, the long period of checks and the lack of certain equipment for testing. In Moscow, the units will pass additional testing and the carrier rocket will be assembled, after which the launch vehicle will be transported to the Plesetsk cosmodrome (Arkhangelsk region) for the pre-launch preparation.

It is interesting to note the circuitous route the rocket’s parts must travel before launch. Kind of reminds me of the way Congress distributed SLS, and how ESA distributed Ariane 5, in order to spread the wealth and put pork in as many places as possible, regardless of how it increased production cost.

Meanwhile, the delay suggests again that Khrunichev’s quality control problems, seen repeatedly with launch failures of its Proton rocket, have not been solved with the new Angara rocket.

Leave a comment

Saturn’s moon Epimetheus

9:14 am

Epimetheus

Cool image time! The picture on the right was taken by Cassini on December 6, 2015, and shows the asteroid-like misshapen moon, too small (only 70 miles across) for gravity to force it into a sphere. Behind it, filling the frame, is gigantic Saturn.

If you look close, you can see one crater that appears elongated, as if the impact was only a glancing blow.

One comment

Long March 7 heads to spaceport

9:01 am

The competition heats up: The first of China’s new generation of rockets, Long March 7, is now on its way to its spaceport for its first launch next month.

The first flight of the 53-metre-tall Long March 7 will take place in late June, according to CASC’s Yang Baohua, and will test the design and performance indicators. The 600 tonne, 3.35m diameter rocket will carry a scaled-down version of a new Chinese re-entry capsule for human spaceflight, chief designer of China’s human space program Zhou Jianping revealed in March.

The article provides some good detailed information about China’s new rockets, noting that this rocket has been designed to launch manned and cargo spacecraft into orbit, making it the equivalent of Russia’s Soyuz rocket. The more powerful Long March 5, set for launch later this year when it will put China’s next space station prototype into orbit, will be their equivalent of Russia’s Proton. In both cases, however, they will be better than Russia’s rockets, more advanced and upgraded with greater capabilities.

The article also makes note of China’s new Wenchang spaceport on the coast, which took six years to build.

Leave a comment
1 … 368 369 370 371 372 … 502