Tag: engineering

Stratolaunch three quarters complete

5:16 am

The competition heats up: Vulcan Aerospace now says that construction of its Stratolaunch airplane, the largest ever to fly, will be completed by the end of this year.

Assembly of the plane is 76 percent complete, with the engines, landing gear and one tail section still to be installed. The plane is expected to be finished before the end of the year. Commercial services are expected to begin before 2020.

They still have not determined the second stage rocket they will use with this mother ship to launch satellites, which leaves me increasingly skeptical about their future. It is very late in the game to still not know this detail.

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New Shepard successfully completes fourth flight

8:46 am

The competition heats up: Blue Origin today completed the fourth test flight of its New Shepard suborbital spacecraft, successfully landing intact its capsule with only two parachutes.

That’s four flights in about seven months, which for a test program seems a reasonable pace. I would expect them to soon begin testing faster turnaround times for the spacecraft, just to see if they can launch and repeat more quickly.

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Europe announces a three month delay for Orion service module

10:01 pm

Be still my heart: Delivery of the service module for NASA’s Orion capsule, being built by the European Space Agency, will be three months late due to engineering modifications.

Nico Dettman, head of ESA’s space transportation department, said the delay is partly a result of the fact that several components could not yet be assessed in the full critical design review and need more time to be integrated into the design. Dettman said another issue forcing the delay resulted from a reassessment by NASA of the stresses the service module needs to be capable of handling in orbit. These “in-orbit load” specifications have recently been tightened. But any design modifications will not affect the service module’s core structure, he said. “If it has an impact, it will be limited to the solar array wings, not the structure – nothing where flight hardware has been manufactured that we will have to touch,” Dettman said. “It’s a late modification, but not too late.”

Note that George Bush proposed Orion in January 2004. The first full up test flight, unmanned, is now scheduled for 2018. Thus, they only had 14 years to build this single capsule and service module.

It took NASA less than five years to build the first Apollo capsule and service module, and less than 8 years to fly seven to the Moon. Damn, it took the Allies less than four years to defeat Germany and Japan in World War II. Yet somehow the big government space programs of NASA and ESA can’t build a single manned capsule in less than 14 years.

Doesn’t anyone but me see something wrong with this picture?

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Orbital ATK delays Antares launch until August

9:50 pm

In the heat of competition: The review of Orbital ATK’s May 31st static fire test of its Antares rocket has caused the company to delay the upgraded rocket’s first launch until August.

Additional information pointed to data on “vibrations” during the Static Fire test that could be deemed as a problem for the vehicle’s avionics. A “fix” was already understood to have been approved.

Orbital ATK, while admitting the launch is slipping from its early July launch date estimate to a date likely to be in the August timeframe, pointed to trajectory evaluations as a specific relation to the launch date deliberations. “Final trajectory shaping work is also currently underway, which is likely to result in an updated launch schedule in the August timeframe,” added Orbital ATK.

They expect to make a decision on launch date in a few weeks.

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Another gravity wave detected by LIGO

1:12 pm

The LIGO gravitational wave detector has detected its second gravitational wave, thought to come from the merger of two black holes.

The new observation came at 3:38.53 Coordinated Universal Time on 26 December 2015—late on Christmas day at LIGO’s detectors in Livingston, Louisiana, and Hanford, Washington. As in the first event, the detectors sensed an oscillating stretching of space-time, the signal, according to Einstein’s 
general theory of relativity, of massive objects in violent motion. Computer modeling indicated that its source was two black holes spiraling together about 1.4 billion light-years away. (LIGO researchers had seen a weaker signal on 12 October 2015 that may be a third black hole merger.)

Note the last sentence in the quote above. They might have had a third detection, but are uncertain enough to have not claimed it as one.

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Russian robot escapes!

9:16 am

A robot being tested by Russian engineers ended up on its own on a public street, baffling passersby and traffic.

“The robot was learning automatic movement algorithms on the testing ground, these functions will feature in the latest version of the Promobot.” The co-founder of the robot’s maker, Oleg Kivokurtsev, told ura.ru news agency. “Our engineer drove onto the testing ground and forgot to close the gates. So the robot escaped and went on his little adventure.” Kivokurtsev explained.

The team only noticed their brainchild was missing 45 minutes into the robot’s travel stint and by the time they located it, there was already a crowd of puzzled citizens and the police had arrived.

I have a suspicion that this was not really an accident, but instead a publicity stunt, but have no way to confirm this suspicion.

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Another successful Falcon 9 launch

9:01 am

The competition heats up: SpaceX has successfully put two commecial satellites in orbit. The first stage hit the barge, but the landing was unsuccessful. More details to come.

The full video of the entire launch is embedded below the fold. One interesting part includes a view from inside the first stage looking back at the second stage at separate, followed with images from the first stage on its way back to Earth..

» Read more

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SpaceX to launch again on Wednesday

5:32 pm

The competition heats up: SpaceX will attempt another commercial launch on Wednesday morning, this time putting two satellites into orbit.

They will once again try to land the first stage in what they say are difficult circumstances. They are also picking up the launch pace, with this the second commercial launch in less than three weeks. It will also be their sixth launch of the year, matching what they did in each of the last two years, with more than half the year to go.

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Next China lunar lander aimed for farside south pole

5:28 pm

The competition heats up: China announced plans today to send its next lunar lander, Chang’e 4, to the Moon’s farside south pole in 2018.

The lander of Chang’e-4 will be equipped with descent and terrain cameras, and the rover will be equipped with a panoramic camera, he said. Like China’s first lunar rover Yutu, or Jade Rabbit, carried by Chang’e-3, the rover of Chang’e-4 will carry subsurface penetrating radar to detect the near surface structure of the moon, and an infrared spectrometer to analyze the chemical composition of lunar samples.

But unlike Chang’e-3, the new lander will be equipped with an important scientific payload especially designed for the far side of the moon: a low-frequency radio spectrometer. “Since the far side of the moon is shielded from electromagnetic interference from the Earth, it’s an ideal place to research the space environment and solar bursts, and the probe can ‘listen’ to the deeper reaches of the cosmos,” Liu said.

The U.S. had been in the lead in the land rush to gain dominance in the possibly water-rich lunar south pole. We apparently have lost this lead with decision of President Obama and Congress to focus elsewhere, either the asteroids or Mars.

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Curiosity heads south

8:53 am

After four years of southwest travel to skirt a large dune field at the base of Mount Sharp, Curiosity has finally turned due south to aim directly up the mountain.

“Now that we’ve skirted our way around the dunes and crossed the plateau, we’ve turned south to climb the mountain head-on,” said Curiosity Project Scientist Ashwin Vasavada, of NASA’s Jet Propulsion Laboratory, Pasadena, California. “Since landing, we’ve been aiming for this gap in the terrain and this left turn. It’s a great moment for the mission.”

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Cygnus to depart ISS, then start a fire

5:40 pm

A fire in space: Orbital ATK’s Cygnus capsule is scheduled to leave ISS on Tuesday, when shortly thereafter it will begin a controlled fire experiment.

“Saffire-I provides a new way to study a realistic fire on a spacecraft. This hasn’t been possible in the past because the risks for performing such studies on crewed spacecraft are too high. Instruments on the returning Cygnus will measure flame growth, oxygen use and more. Results could determine microgravity flammability limits for several spacecraft materials, help to validate NASA’s material selection criteria, and help scientists understand how microgravity and limited oxygen affect flame size. The investigation is crucial for the safety of current and future space missions. – See more at: http://www.space.com/17933-nasa-television-webcasts-live-space-tv.html#sthash.2DjFjJqY.dpuf

The departure is scheduled for 9 am (eastern), and will aired live by NASA.

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NASA and United Arab Emirates sign space cooperation deal

7:30 am

The competition heats up (but not in the way you think): NASA and the United Arab Emirates (UAE) space agency have signed an agreement to cooperate in space research and technology development.

The agreement covers cooperation and collaboration in space science, operational Earth observation and Earth science, aeronautics, space operations and exploration, education, technology, safety and mission assurance, and other areas with potential benefits to all nations.

The two countries will continue to identify additional areas of mutual interest for possible future cooperative programs or joint activities on Earth, in airspace, or in outer space. These activities may include the joint use of aircraft, scientific instruments aboard spacecraft, ground-based research facilities, spacecraft and space research platforms, as well as ground-based antennas for tracking, telemetry, and data acquisition. Additionally, the two countries will aim to collaborate on the creation and implementation of education and public outreach programs and joint workshops, with the goal of facilitating the exchange of scientific data, scientists, engineers, and views and experiences on relevant regulatory frameworks and standards.

The competition here is not between these big space government programs, who are increasingly teaming up, but between the big space government programs and the profitable and uncontrolled private sector. I fully expect there to be more calls for government supervision and licensing of private space, just to control it better. And what better way to leverage that control but to link every big space program in the world together, so that there are no independent efforts?

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Successful ULA Delta 4 Heavy launch today

6:03 pm

The competition heats up: ULA today successfully launched a U.S. National Reconnaissance Office spy satellite, using what is presently the world’s most powerful rocket, the Delta 4 Heavy.

In many ways, this rocket’s launch, which you can see in the video embedded below the fold, gives a rough idea of what a Falcon Heavy launch will look like, since the rockets have somewhat similar configurations.
» Read more

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Musk hints details of SpaceX Mars project

4:40 pm

The competition heats up: In an interview with the Washington Post this week, Elon Musk gave some more hints at his company’s future plans to send its Dragon capsules to Mars.

“Essentially what we’re saying is we’re establishing a cargo route to Mars,” [Musk] said. “It’s a regular cargo route. You can count on it. It’s going happen every 26 months. Like a train leaving the station. And if scientists around the world know that they can count on that, and it’s going to be inexpensive, relatively speaking compared to anything in the past, then they will plan accordingly and come up with a lot of great experiments.”

The key to Musk’s effort is that he plans on doing it. He isn’t sitting around waiting for others, or trying to convince others to join him in a partnership before proceeding. He is simply doing it, and is welcoming others to take advantage of the opportunity he is offering.

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Pluto’s jagged shores

10:43 am

Pluto's jagged shoreline

Cool image time! The picture on the right, taken by New Horizons during its July 2015 flyby and cropped and reduced here, shows the reddish hues of the Krun Macula dark region along the shore of Pluto’s vast nitrogen ice plains. The hillsides here rise about a mile and a half above both the plains and the valleys, making them deeper than the Grand Canyon. The hills are “believed to get its dark red color from tholins, complex molecules found across Pluto.”

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Battle for communications spectrum between private companies

9:09 am

The competition heats up: One group of mobile broadband companies is fighting another group of satellite-based internet companies for control over the use of a part of the electromagnetic spectrum.

A coalition of 5G terrestrial mobile broadband companies led by Charlie Ergen’s Dish Network on June 8 asked U.S. regulators to strip future low-orbiting satellite Internet constellations of their priority access to 500 megahertz of Ku-band spectrum – spectrum coveted by prospective constellation operators including OneWeb LLC and SpaceX. SpaceX and satellite fleet operator Intelsat, a OneWeb investor and partner, immediately filed separate opposition papers to the FCC, arguing that nongeostationary-orbit (NGSO) constellations are very much alive.

In the middle is the FCC and our hapless and increasingly corrupt federal government. I sadly suspect the side that will win this battle will be the side that gives the most campaign money to the right politicians.

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India’s government proposes ending satellite competition

11:19 am

The competition cools down? A regulatory agency in India is proposing eliminating commercial satellite competition and consolidating all satellite television broadcasts onto a handful of government owned and launched satellites.

Indian Prime Minister Narendra Modi’s “Make in India” campaign seeks to promote India’s domestic industrial base. The Telecom Regulatory Authority of India (TRAI) on May 23 published what it calls a “pre-consultation paper” that points to the savings satellite-television broadcasters could realize if they stopped beaming the same programs on different satellites, and instead banded together on one or two spacecraft.

As of March 2015, the latest period for which TRAI has produced figures, there were 76 million DTH subscribers in India, of which 41.1 million were considered active. These subscribers received programming from six pay TV DTH providers and one free-to-air satellite broadcast service. TRAI said multiple DTH providers are broadcasting the same channels even as they compete with each other for subscribers. “There is scope for better utilization of available infrastructure,” TRAI said. “There is a need to examine technical and commercial issues in sharing of infrastructure such as satellite transponders, Earth station facilities….”

There is also this important component to the story:

India has been one of the biggest satellite-DTH growth markets in recent years, but one in which barriers to entry by foreigners remain high. Under Indian law, television broadcasters seeking operating licenses are given preferential treatment if they use India’s own Insat telecommunications satellites, owned and operated by the Indian Space Research Organization (ISRO). Non-Indian satellites are permitted if ISRO’s Insat system does not have sufficient capacity to meet programmers’ demand. This has been the case for years as ISRO has been unable to keep up with the market for satellite television.

In other words, the commercial satellite business in India is doing great, so let’s muck it up by having one government agency create a monopoly for another government agency.

The United States tried this in the 1960s when it banned private companies from launching commercial communications satellites and instead required all such satellites to be built by the government-managed Comsat corporation. The result in the U.S. was a squelched satellite and launch industry that did not recover for more than a decade, and only did so when the Nixon administration forced a change in the rules.

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