Tag: ISS

Extending ISS to 2024

10:01 am

An inspector general report released today has outlined some issues that NASA needs to address in order to keep ISS operational through 2024.

In this audit, the Office of Inspector General (OIG) found that while NASA has identified no major obstacles to extending ISS operations to 2024, it must address several areas of risk to ensure continued safe operations. Specifically, the ISS faces a risk of insufficient power generation due in part to faster-than-expected degradation of its solar arrays. Second, although most replacement parts have proven more reliable than expected, sudden failures of key hardware have occurred requiring unplanned space walks for repair or replacement. Third, with the retirement of the Space Shuttle fleet NASA has a limited capacity to transport several large replacement parts to the Station should they be needed. While the ISS Program is actively working to mitigate these risks, anticipating the correct amount of replacement parts and transporting them to the ISS present major challenges to extending Station operations 10 or more years beyond its original expected service life.

The report also noted concerns about the budget and the lack of commitment from NASA’s international partners.

Leave a comment

No first stage landing attempt on next Falcon 9/Dragon launch

3:44 am

SpaceX has decided not to attempt a soft splashdown of the Falcon 9 first stage during Saturday’s launch of the Dragon capsule to ISS.

In a change of plans, the Falcon 9 booster stage set to launch Saturday will not carry landing legs, according to Hannah Post, a SpaceX spokesperson. She said SpaceX does not plan to attempt a water landing of the first stage after its job during launch is completed.

SpaceX initially planned to program the rocket’s first stage to fly back to Earth after completing its work to boost the Dragon spacecraft off the launch pad, but engineers swapped out the Falcon 9 booster with a first stage originally assigned to another flight, officials said.

The reason for the changeout was not disclosed.

I suspect this decision is in connection with the Falcon 9R failure last month, but admit I am speculating with no inside knowledge.

I should also note that if Saturday’s launch goes as planned, it will set a new SpaceX record for the fastest turn-around between launches, less than two weeks. If they succeed, I think they will prove once and for all to most of their remaining naysayers that they are a serious, reliable, and well-run launch company.

Leave a comment

An update on the status of NASA manned commercial competition

3:25 pm

Jason Davis at the Planetary Society blog has put together an excellent summary of the status for all three companies competing for NASA’s contract to ferry astronauts to and from ISS.

Key paragraph:

From a quantitative standpoint, Boeing is the leader. Since the first quarter of 2013, the company has been ahead in percentage of milestones completed and percentage of funding awarded. Plus, there’s the simple fact that they’ve finished all of their milestones, while SpaceX and Sierra Nevada asked for extensions. But from a qualitative standpoint, things are less straightforward. SpaceX has already proven they can fly missions to the ISS. And they’re the only CCiCap participant with a pad abort test and an in-flight abort test among their milestones.

It is very clear just looking at the actual milestones that what Boeing has done so far is not that impressive. Almost everything on their list is a paperwork review, not construction or testing of actual hardware. Meanwhile, SpaceX and Sierra Nevada are building and testing spacecraft. That they have not yet completed their milestones is hardly a big deal in this context.

4 comments

The Russian takeover of Crimea once again threatens American access to space

10:12 pm

A decision by the Russians to possibly shift astronaut training back to a base in the Crimea, now under their control, could lock American astronauts from future Soyuz flights.

Shifting the survival training to Russian-occupied Crimea will require foreign cosmonauts to accept travel there without Ukrainian visas, an explicit acquiescence to the new diplomatic status of the province. Refusal to attend survival training is equivalent to failing the training, which by existing training regulations is an automatic disqualification for flight certification. No Crimea trip, no space trip.

The Russians have not yet made this shift official, so it is possible it will not become a problem. However, the article outlines many reasons why it makes good sense for the Russians to do it.

6 comments

Sarah Brightman, astronaut

9:01 am

The competition heats up: The start of Sarah Brightman’s astronaut training has been delayed from this fall to the beginning of 2015.

I suspect this delay has more to do with accommodating her schedule and the fact that she is very enthusiastic and well-prepared than any negative issues related to her or the mission. They have probably decided that she just needs less time to train.

Her actual flight to ISS is scheduled for the fall of 2015.

Leave a comment

The decision on manned spaceflight

9:23 am

The rumors are swirling. Today alone the news included three different articles about NASA’s upcoming decision to down-select to either one or two in its manned commercial crew program.

The third article above speculates that the decision will be made shortly after this weekend, maybe as soon as next week. It also outlines in nice detail the companies who are competing for the contract.

I strongly expect NASA to pick two companies, not one, as the agency has repeatedly said it wants to have redundancy and competition in manned space flight. To this I agree whole-heartedly. Right now, if I was a betting man (which I am not), I would pick SpaceX and Sierra Nevada as the two companies to get the nod.

If NASA only picks one company that I don’t think there is much doubt that it will be SpaceX.

And then again, government agencies, because of politics, have sometimes made some incredibly stupid decisions. For example, back in the 1970s the company that proposed the space shuttle was rejected for another big space company that had more political clout, which then turned around and essentially stole the first company’s designs to build the space shuttle from them. It just took longer and cost more.

3 comments

Russia to continue on ISS past 2020?

9:03 am

A Russian news story today suggests that they are leaning strongly to continuing their partnership with the United States on ISS beyond 2020.

“The issue of Russia’s participation at the ISS after 2020 remains open, but there is a 90-percent chance that the state’s leadership will agree to participate in the project further,” [Izvestia] wrote, citing a source at Russia’s Federal Space Agency Roscosmos.

This report gives a better overview of the debate going on with Russia’s government and space agency. If they abandon ISS the work they have already done on new modules for the station will have to be written off, and it appears assembling their own station from those modules will be too expensive and take too long.

It also looks like NASA offered them a second year long mission if they stuck around.

5 comments

Last ATV launched to ISS

8:34 am

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.

One comment

UrthaCast progress

7:58 am

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 (“BPP”), 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.

Leave a comment

Cygnus launch

9:23 am

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.

Leave a comment

Russia to phase out use of Ukrainian-built Soyuz rockets

9:09 am

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 — 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 — 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.

One comment

Space junk damages ISS coolant radiator?

9:09 am

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.

2 comments

An contract extension from NASA for SpaceX and Sierra Nevada

3:18 pm

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, NASA’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 — 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 Nevada’s $212.5 million CCiCap award to extend work associated with flight tests of the company’s Dream Chaser engineering test article until March 31, 2015.

NASA’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.

2 comments

Russia has moved today to exclude access by the U.S. military to any GPS stations in its territory.

9:02 am

Russia has moved today to exclude access by the U.S. military to any GPS stations in its territory.

It appears the Russians have has much empty bluster as the Obama administration. When they first said they were going to block access to these stations, they made it sound like they were going to cut-off all access. Instead we learn that it is only limited to U.S. military authorities. Since the stations are mostly used by scientists for geological research, Russia is therefore not really cutting anyone off from anything.

Reminds me of the Obama administrations sanctions against Russia. A big announcement, but then they exclude everything of importance from the sanctions when it appears those sanctions might actually be irritating to either side.

One comment

Orbital Sciences has delayed its next Cygnus flight to ISS by at least one week in order to complete its investigation of the failure of a Russian-built rocket engine used by the Antares rocket.

10:05 am

Orbital Sciences has delayed its next Cygnus flight to ISS by at least one week in order to complete its investigation of the failure of a Russian-built rocket engine used by the Antares rocket.

Without doubt, this engine failure highlights the urgent need for American rocket companies to develop their own rocket engines.

Leave a comment
1 … 30 31 32 33 34 … 49