STS-117 (13A) Mission- Part III

ckikilwai · Jun 18, 2007

yes, we will have a hatch closure today, and tomorrow undocking and a fly around. Can't wait to see the ISS as a whole after the construction work this week! <img src="/images/icons/tongue.gif" />

MeteorWayne · Jun 18, 2007

Be sure to check Heaven's-Above for the US tonight. Here in the Northeast We have a nice pass about 10:15 EDT, the last with the shuttle still attached. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

jschaef5 · Jun 18, 2007

If they changed the landing requirements for the shuttle's head wind component, the shuttle could land at Edwards 99% of the time. The winds in the late afternoon can get up over 25 knots on some days but with the lakebed you can have that be a complete headwind. Why doesn't the shuttle have just a crosswind component requirement, what is the reasoning for having a total wind limit also? I am unsure on the landing speed but a rough guess would be 175, the difference between 25 and 35 headwind is small and I would think that it would help rather than be a negative. <div class="Discussion_UserSignature"> </div>

bobblebob · Jun 18, 2007

Good to see the SARJ working correctly. Whats the weather outlook for KSC landing on Thursday? I might be out on Friday so hoping they can land on the Thursday as planned

MeteorWayne · Jun 18, 2007

Typical Florida Summertime. Thursday 60% of afternoon Thunderstorms Friday 50% Saturday 40% <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

bobblebob · Jun 18, 2007

Cheers. Im guessing they will try and land Thursday then (even if it means using the backup landing sites) as the rest of the week isnt looking great

3488 · Jun 18, 2007

Hi shuttle_guy. I understand that as the carrier Boeing 747 could crash (highly unlikely but could) with the shuttle on board. Is it true that Banjul Airport in The Gambia was re-built by NASA for this very purpose?? Good to see that the problems on board ISS have be greatly resolved. Lets hope for a safe landing for Atlantis. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

bobblebob · Jun 18, 2007

"A landing at a site other than KSC costs a lot of money, adds about 3 or 4 days to the processing schedule and it is dangerious to ferry the vehicle back to KSC." True, but watching it being transported ontop of a Boeing 747 is cool <img src="/images/icons/laugh.gif" />

3488 · Jun 18, 2007

Did not realise that. That is a low altitude. Why is the ferry altitude so low? Even with the orbiter on board, that assembly is still lighter than a normal commercial Boeing 747, loaded with passengers, freight & luggage (bearing in mind that the 747 in question has had everything not needed removed, no passengers, luggage, etc, not to mention strengthened joints, beefed up engines, etc). Yet they can & often exceed 40,000 feet. Is it pressurization issues? Yes it makes sense centsworthII. Did not think about that. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Jun 18, 2007

Thanks for your answer. Yes of course, at the cruising altitude of the 747, it is about minus 65 C. I see what you mean about private pilots. Of course they would go & look, with the potential collision that would involve. I am ejoying these threads very much. Thank you shuttle_guy. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Jun 18, 2007

Thats going back a while. June 1966. (XB-70 & F-104). As you say, that was with two very well trained & disciplined pilots, yet they still collided. The F-104 was caught in the wing tip vortex off the XB-70 & the F-104 ended up being flipped over onto the roof of the XB-70. For those who are unfamiliar there is a link here: XB-70 crash. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Jun 18, 2007

To be honest with you shuttle_guy, so would I under the circumstances. I would love to see it for real. Seen many photographs. A wonderful sight. Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

samo · Jun 18, 2007

Post deleted by samo

bobblebob · Jun 18, 2007

Now that it seems the computers are fixed, is this bypassing of the switches/surge protector a long term solution. Any plans to somehow allow the power to again flow via these switches if/when they can work out a solution?

MeteorWayne · Jun 18, 2007

My (35 year) experience is that if these are surge supressors that have been damaged by an incident, they will need to be replaced in order to provide the previous level of protection. Until then, the downstream power supplies are vulnerable to fatal damage. Depending on how they are installed this could be an easy swapout, or something that involves soldering, which could be quite a challenge in microgravity. But other methods could be developed, given the 6 weeks until the Progress launch. Has anyone heard anything about the plan that had been floated a few days ago to bring the 3rd lane computer of each system home with Atlantis? <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

larper · Jun 18, 2007

<blockquote>In reply to:<hr />Depending on how they are installed this could be an easy swapout, or something that involves soldering, which could be quite a challenge in microgravity. <hr /></blockquote> Now, there is some research that should REALLY be conducted on ISS, if we are ever going to go to Mars. <div class="Discussion_UserSignature"> Vote Libertarian </div>

MeteorWayne · Jun 18, 2007

True, you darn well better carry all your spares with you <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

brellis · Jun 18, 2007

Pardon me if this was brought up already, but at one point on NASA-tv I thought I saw a loose bolt/connector go spinning off on its own trajectory. Whether or not that was a piece of debris, I pondered what the typical construction site produces in terms of bent nails, etc. They've got a pretty clean construction job going up there! <div class="Discussion_UserSignature"> I'm a recovering optimist - things could be better. </div>

MeteorWayne · Jun 18, 2007

And they better. What goes around can come around, with an uncomfortable amount of kinetic energy. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

erioladastra · Jun 18, 2007

"Now that it seems the computers are fixed, is this bypassing of the switches/surge protector a long term solution. Any plans to somehow allow the power to again flow via these switches if/when they can work out a solution?" No not a long term solution. 4 new computers will come up on 26P now moved to July 23. yes, working on a power plan - and we could flow now the question is - why did it happen????

erioladastra · Jun 18, 2007

"Depending on how they are installed this could be an easy swapout, or something that involves soldering, which could be quite a challenge in microgravity. " The cards are conformal coated and there are no spare circuit on board (though Don Petit did leave some interesting parts behind). So they will not be repaired. No, we did not bring a third lane home because of the fix.

erioladastra · Jun 18, 2007

"Now, there is some research that should REALLY be conducted on ISS, if we are ever going to go to Mars. " Suni has been doing a lot of that as research.

SpaceKiwi · Jun 18, 2007

<blockquote>In reply to:<hr />Now that it seems the computers are fixed, is this bypassing of the switches/surge protector a long term solution.<hr /></blockquote> For the life of this circuit arrangement, yes, it is the solution. From what I've gleaned off NASA TV this 'surge protection' circuit board is redundant hardware, as there is similar protection in the 'power line' up-stream of these boards and also down-stream right at the PSU's for the computers. Therefore, it is only one of three protection mechanisms in the line between the power being generated and the computers themselves. However, as erioladastra has commented, the bigger fish to fry is nailing down the root cause conclusively. And, of course, this 'fix' is only good until they swap out some hardware. In this case, it sounds like they are going to move on the computers which, I guess, is the easiest part of the chain to change quickly. Then they will re-evaluate the whole circuit again and see if the jumpers can be taken out (assuming those circuit boards aren't U.S.). <div class="Discussion_UserSignature"> Who is this superhero? Henry, the mild-mannered janitor ... could be!-------------------------------------------------------------------------------------------Bring Back The Black! </div>

montmein69 · Jun 19, 2007

ESA is working closely with NASA and russian partners on the computer issue. http://www.esa.int/esaHS/SEMZ1Q7OY2F_index_0.html The ATV and Columbus use the same "brain" <div class="Discussion_UserSignature"> </div>

JonClarke · Jun 19, 2007

Samo's posts on elevons moved to Phenomena Jon <div class="Discussion_UserSignature"> Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars Arthur Clarke </div>

STS-117 (13A) Mission- Part III

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