Last ATV launched to ISS

Arianespace today successfully launched the last European cargo ship to ISS.

After doing some flight tests in orbit and in conjunction with ISS, the docking will occur on August 12.

After this flight the Russian Progress freighter will be the only spacecraft with engines capable of changing the station’s orbit. It will also be the only spacecraft capable of refueling the engines on ISS’s Russian modules.

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UrthaCast progress

The competition heats up: UrthaCast has announced the status of the commissioning of its commercial cameras on ISS for viewing the Earth.

The medium resolution camera has been commissioned and is available for commercial imaging. The high resolution camera, however, has a problem with its pointing system which is requiring troubleshooting.

The Bi-axial Pointing Platform (โ€œBPPโ€), which controls the pointing of the [High Resolution camera (HRC)], is experiencing difficulties in achieving the pointing control precision needed for the HRC to meet image quality specifications. Our engineering team together with RSC Energia believes it has developed a solution to this problem using existing gyroscopes on the HRC to improve the BPP pointing control. This solution has been successfully tested on the ground. The on-orbit implementation of this solution requires software updates and the installation of additional cabling inside the Zvezda module. These new cables need to be delivered to the International Space Station (ISS). As a result, there will be a several month delay in commissioning the HRC.

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Cygnus launch

All is go for a 12:52 pm launch of Cygnus’s second operational cargo flight to ISS.

If you live on the east coast of the U.S. you should be able to see some part of this launch when it happens.

Cygnus has lifted off.

The main engine has cut off and the first stage has successfully separated.

The second stage has ignited successfully. It has now completed its burn and has separated from the spacecraft. Cygnus is in orbit.

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Russia to phase out use of Ukrainian-built Soyuz rockets

As part of a major upgrade of its Soyuz rocket family, Russia is also ending its partnership with Ukraine in building those rockets.

The older Soyuz rockets rely on a Ukrainian control system โ€” a relic of the rocket family’s Soviet heritage that in the aftermath of Russia seizure of Crimea from Ukraine in March looks like a threat to Russia’s space program. The rockets are based on the same core design that launched Sputnik and Yury Gagarin into space at the dawn of the space age. “The Soyuz-U and Soyuz-FG control systems are analog [systems] made in Ukraine,” Alexander Kirilin, CEO of the Progress Rocket and Space Center in the Volga city of Samara told Interfax on Monday.

However, the Soyuz 2 rockets use a Russian-made digital control system. Aside from further moving Russia’s space industry away from its reliance on Ukrainian components, the digital control system allows the rockets to handle a wider variety of payloads โ€” making the tried-and-tested Russian rocket more versatile than ever before.

It is Russia’s plan to complete the transition to the new wholly Russian Soyuz 2 rockets for ISS missions within the next three years.

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Space junk damages ISS coolant radiator?

According to the Russian Interfax news agency, a piece of space junk has hit a coolant radiator on the U.S. portion of ISS.

The source says that no coolant has escaped from the system and that NASA engineers are analyzing images to assess the damage.

Readers should be aware that I have tried without success to find the NASA website the story claims is the source for this information. Moreover, this story is reported nowhere in the U.S. press, and it is strange for a NASA website to report something like this and it not be quickly picked up by the U.S. press.

Thus, I am not entirely convinced yet that this story is accurate.

Update: a commenter below has provided this link to a subsequent post at nasaspaceflight about the impact.

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An contract extension from NASA for SpaceX and Sierra Nevada

NASA has given SpaceX and Sierra Nevada six additional months, until March 2015, to complete their last contractual milestones for building their manned spacecraft.

An amendment signed by William Gerstenmaier, NASAโ€™s associate administrator for human exploration and operations, on May 16 gives SpaceX until March 31, 2015, to complete the 14th and final milestone under its $440 million CCiCap agreement โ€” a pad abort test of its Dragon capsule. The test originally was planned for April 2014.

On May 19, Gerstenmaier signed a similar amendment to Sierra Nevadaโ€™s $212.5 million CCiCap award to extend work associated with flight tests of the companyโ€™s Dream Chaser engineering test article until March 31, 2015.

NASAโ€™s third Commercial Crew partner, Boeing, is on track to complete all its milestones, worth a combined $460 million, by the end of August,

The significance of this extension is that it reveals something about the dates for both SpaceX and Sierra Nevada’s next flight tests. The previously date for the pad abort test for Dragon had most recently been set for this summer. They are obviously not meeting that schedule and need more time. Sierra Nevada meanwhile wants to fly its Dream Chaser test vehicle some more, but apparently needs time to get it flight ready after it sustained damage during landing on its one and only flight test.

In addition, this extension suggests something about NASA’s assessment of the efforts of all three companies. The agency is supposed to down select to two companies by the end of the summer. The extension suggests that they are hoping to keep all three companies funded so that they all build their spacecraft.

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