Dragon SpX-10 (CRS10) - Falcon 9 v1.2 - Canaveral SLC-40 - 19.02.2017 14:38 UTC

[Shenaar]

LRV_75 пишет: 
Интересно, кто этот человек с железными нервами

Elon MuskПодлинная учетная запись‏@elonmusk

@Xuan_Thai System was green for launch. I called it off.

"Система была зелёной для запуска. Я остановил."

[triage]

Mikhail-G пишет:

pnetmon пишет:
 https://www.nasa.gov/mission_pages/station/research/experiments/2025.html
The animals are ready to fly 1 week after post-surgery.

Новых мышей по этому условию не будет

почему?

Thirty male C57BL/6 mice undergo a surgical resection to create artificial segmental femoral defects. The age-and weight matched animals are segregated in three groups during surgery. For Group A, one third of the 30 mice (10 mice) defects are filled with a novel bioabsorbable scaffold imbued with thrombopoietin (TPO). For Group B, the defects of 10 other mice are filled by similar bioabsorbable scaffold imbued with bone morphogenic protein-2 (BMP-2). And, for Group C, the defects of the rest of the 10 mice are filled by the bioabsorbable scaffold imbued with saline as a control. All scaffolds were held in place by a 27 gauge needle. There is another 10 mice (Group D) as control that does not undergo any surgical intervention. The animals are ready to fly 1 week after post-surgery. 

Тридцать C57BL / 6 мышей мужского пола подвергаются хирургической резекции, чтобы создать искусственный сегментные бедренные дефекты. Возрастные и вес подобраны животные отделены в трех группах во время операции. Для группы А, одна треть из 30 мышей (10 мышей) дефекты заполняются новым биорассасываемого эшафот пропитаны тромбопоэтина (ТПО). Для группы Б, дефекты 10 других мышей заполнены подобным биорассасываемым помост пронизанной костного морфогенетического белка-2 (BMP-2). И, для группы C, дефекты остальных 10 мышей заполняются биорассасываемого эшафот наполненного физиологическим раствором в качестве контроля. Все каркасы были проведены на месте с помощью иглы калибра 27. Существует еще одна 10 мышей (группа D) в качестве контроля, который не претерпевает каких-либо хирургического вмешательства. Животные готовы к полету через 1 неделю после после операции.

[LRV_75]

Shenaar пишет:

LRV_75 пишет:
Интересно, кто этот человек с железными нервами

Elon MuskПодлинная учетная запись ‏@elonmusk

 @Xuan_Thai System was green for launch. I called it off.

"Система была зелёной для запуска. Я остановил."

Т.е. сам Маск это сделал? Крутой

[triage]

LRV_75 пишет:
Т.е. сам Маск это сделал? Крутой

[Shenaar]

LRV_75 пишет: 
Т.е. сам Маск это сделал? Крутой

Elon Musk ‏@elonmusk

Btw, 99% likely to be fine (closed loop TVC wd overcome error), but that 1% chance isn't worth rolling the dice. Better to wait a day.

Закрытый цикл TVC компенсировал бы ошибку с вероятностью 99%, но 1% неудачи - слишком много, лучше подождать день.

[Виктор Кондрашов]

LRV_75 пишет:

Shenaar пишет:

LRV_75 пишет:
Интересно, кто этот человек с железными нервами

Elon MuskПодлинная учетная запись ‏@elonmusk

 @Xuan_Thai System was green for launch. I called it off.

"Система была зелёной для запуска. Я остановил."

Т.е. сам Маск это сделал? Крутой

Его вполне можно понять в данной ситуации. Неможно им сейчас позволить себе еще один аварийный пуск.

[tnt22]

https://arstechnica.com/science/2017/02/behind-the-scenes-of-spacexs-historic-launch-from-pad-39a/

Fly, Falcon, fly! —
Elon Musk says he personally called off Saturday's launch attempt [Updated]

Company says it is on track to attempt a second launch on Sunday.  
 Eric Berger - 2/18/2017, 5:25 PM
 
 Noon ET Update: In a series of tweets on Saturday, SpaceX chief executive Elon Musk said he personally called off the launch of a Falcon 9 rocket when the system was "green" for liftoff.

"All systems go, except the movement trace of an upper stage engine steering hydraulic piston was slightly odd," he tweeted. "If this is the only issue, flight would be fine, but need to make sure that it isn't symptomatic of a more significant upstream root cause. Btw, 99% likely to be fine (closed loop TVC wd overcome error), but that 1% chance isn't worth rolling the dice. Better to wait a day."

The "TVC" refers to thrust vector control, which helps steer the upper-stage engine. From these remarks it appears SpaceX will indeed try a second launch attempt on Sunday, during an instantaneous window that opens and closes at 9:38pm ET.

10:08am ET Update: At T-13 seconds, the SpaceX launch team scrubbed Saturday morning's attempt. Engineers working the launch weren't able to get comfortable with a "thrust vector control" issue on the rocket's second stage, which helps position the engine nozzle.

The company will probably try to launch again on Sunday at 9:38am ET, although a formal announcement is not likely until later on Saturday.

Original Post: NASA built two main launch pads during the Apollo program, 39A and 39B. The former was used for every Moon landing launch, except for Apollo 10, and most of the space shuttle missions. After the final space shuttle flight in 2011, NASA decided it needed just one of the pads for its future operations. So it leased Launch Complex 39A to SpaceX.

The company had intended to use Launch Complex 39A primarily for launches of its new Falcon Heavy rocket and commercial crew missions. However, on September 1, 2016, a static fire test accident at SpaceX's other Florida launch pad, Launch Complex 40, caused severe damage to facilities there (repairs may be complete later this summer, according to company president Gwynne Shotwell). This pushed SpaceX to expedite its refurbishment of Launch Complex 39A and to expand its use for all launches from the East Coast.
 
Now, after modifications and upgrades, the historic pad is finally ready for its second life. The first SpaceX launch from the historic pad is scheduled for Saturday at 10:01am ET (15:01pm UK). A Falcon 9 rocket will boost a Dragon spacecraft carrying about 2.5 tons of food, water, and scientific experiments to the International Space Station. About 10 minutes after launch, the first stage of the rocket will attempt to land back at Landing Zone 1, near the launch pad. So far, SpaceX is two for two with land-based returns of its rocket. The webcast will begin at about 9:40am ET:
 
Weather conditions are improving for Saturday morning's launch, with forecasters now estimating a 70-percent chance of "go" conditions during the instantaneous launch window. SpaceX is still working a technical issue with "tiny" helium leak within the rocket's upper-stage, and a final decision may not be made until a minute before launch.

 
 Eric Berger Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to wonky NASA policy. A certified meteorologist, Eric lives in Houston. Email eric.berger@arstechnica.com // Twitter @SciGuySpace
 

Прим. моё - картинки и видео удалил.

[snek]

to LRV_75 - static fire, а то глаз режет.

[LRV_75]

Виктор Кондрашов пишет:
Его вполне можно понять в данной ситуации. Неможно им сейчас позволить себе еще один аварийный пуск.

Понять то его конечно можно, только сложность принятия подобных решений, да еще в цейтноте, от этого легче не становится 

Плюс, потом ночью можно ворочаться - а ведь улетела бы, улетела бы  

[Shenaar]

LRV_75 пишет:

Виктор Кондрашов пишет:
Его вполне можно понять в данной ситуации. Неможно им сейчас позволить себе еще один аварийный пуск.

Понять то его конечно можно, только сложность принятия подобных решений, да еще в цейтноте, от этого легче не становится    

Плюс, потом ночью можно ворочаться - а ведь улетела бы, улетела бы  

Как они любят говорить, Better safe than sorry.

[tnt22]

Прогноз погоды на завтра - вероятность нарушения погодных условий 30 %

Add-on от https://twitter.com/CwG_NSF

[tnt22]

pnetmon пишет:
Новых мышей по этому условию не будет, можно конечно поменять группы местами

http://www.spacepolicyonline.com/news/spacex-scrubs-crs-10-launch-13-seconds-before-liftoff#.WKiY1GVvPCo.twitter

...
 Among the cargo are 40 mice (jokingly called mousetronauts) that are part of a bone healing experiment conducted by the U.S. Army Center for Environmental Health called Rodent Research IV. They were loaded into Dragon yesterday as part of the "late load" cargo. If the launch does not take place tomorrow, they and other late load items will have to be removed and replaced, so the launch could not occur again until Tuesday at the earliest.
...

Выделено

Если запуск не состоится завтра, они и другие предметы "поздней загрузки" должны быть удалены и заменены...

А вот конец у них, действительно, незавидный...

[Alex_II]

LRV_75 пишет:
Плюс, потом ночью можно ворочаться - а ведь улетела бы, улетела бы

А вот этим и отличаются люди способные быстро принимать решения от людей к этому неспособных. Что потом не ворочаются. А то так никаких нервов не напасёшся...

[tnt22]

SpaceX Scrubs CRS-10 Launch 13 Seconds Before Liftoff

http://www.spacepolicyonline.com/news/spacex-scrubs-crs-10-launch-13-seconds-before-liftoff#.WKiY1GVvPCo.twitter

SpaceX Scrubs CRS-10 Launch 13 Seconds Before Liftoff
 
Marcia S. Smith

Posted: 18-Feb-2017
 Upd ated: 18-Feb-2017 01:57 PM
 
SpaceX scrubbed the launch of its 10th Commercial Resupply Services (CRS) cargo mission to the International Space Station (ISS) today just 13 seconds before liftoff.  Two technical problems cropped up with the Falcon 9 rocket during the final phases of the countdown.  One was resolved, but the other -- involving a steering mechanism on the Falcon 9 rocket's second stage -- worried flight controllers who decided to wait until the problem was better understood.  Another launch opportunity exists tomorrow (Sunday) morning, but the company and NASA have not yet announced if they will try to launch at that time.

The Dragon spacecraft on this SpaceX CRS-10 or SpX-10 mission is carrying approximately 5,500 pounds of supplies and experiments to the ISS crew.  Among the cargo are 40 mice (jokingly called mousetronauts) that are part of a bone healing experiment conducted by the U.S. Army Center for Environmental Health called Rodent Research IV.   They were loaded into Dragon yesterday as part of the "late load" cargo.   If the launch does not take place tomorrow, they and other late load items will have to be removed and replaced, so the launch could not occur again until Tuesday at the earliest.  However, Russia is launching its own cargo spacecraft, Progress MS-05, early Wednesday morning Eastern Standard Time, so NASA will have to determine how to interweave the schedules.

This will be the first SpaceX launch from NASA's Launch Complex-39A, which was used for Apollo missions to the moon and space shuttle launches.  NASA is leasing the pad to SpaceX.  SpaceX also leases launch pads from the Air Force at the adjacent Cape Canaveral Air Force Station (CCAFS) and Vandenberg Air Force Base, California.  SpaceX's prior ISS cargo missions have launched from CCAFS Space Launch Complex-40, but it was badly damaged during a September 1, 2016 explosion that destroyed a Falcon 9 rocket and its Amos-6 commercial communications satellite payload.  SpaceX already was preparing LC-39A for launches of Falcon 9 and the Falcon Heavy, which is in development, so was able to rather quickly move this launch to LC-39A.   Whenever this launch takes place, SpaceX plans to land the Falcon 9 first stage at a different CCAFS launch complex for a third time.  SpaceX routinely tries to recover its first stages so they can be reused.  Sometimes they land on autonomous drone ships at sea and sometimes on land depending on the rocket's trajectory and how much fuel remains after deploying the payload into orbit.

During the countdown this morning, one problem developed with the autonomous flight termination system (FTS) being used as the primary range safety abort system for the first time on a SpaceX launch.  Range safety is an Air Force responsibility and the Air Force is transitioning to this new type of automated system for all launches.  SpaceX President and COO Gwynne Shotwell said at a press conference yesterday that they have been flying the automated system in "shadow" mode for some time and although they were directed by the Air Force to use it as the primary system for this launch "we would have done it anyway."   NASA Kennedy Space Center Director Bob Cabana said at the same press conference that NASA is in complete agreement  with the Air Force.   He views the autonomous system as safer and more reliable than the "human-in-the-loop" system that has been used historically.   Today's problem was a software issue that produced "inconsistent data," but was readily resolved.

The other problem was with a thrust vector control (TVC) system on the rocket's second stage.  The TVC system steers the rocket.  The SpaceX team tried to resolve the issue, but decided at T-13 seconds to abort the launch.   SpaceX President Elon Musk tweeted in response to a question that he was the one who made the decision.
 
 

@Xuan_Thai System was green for launch. I called it off.
 — Elon Musk (@elonmusk) February 18, 2017

He explained his reasoning in other tweets
 

If this is the only issue, flight would be fine, but need to make sure that it isn't symptomatic of a more significant upstream root cause
 — Elon Musk (@elonmusk) February 18, 2017

Btw, 99% likely to be fine (closed loop TVC wd overcome error), but that 1% chance isn't worth rolling the dice. Better to wait a day.
 — Elon Musk (@elonmusk) February 18, 2017

Yesterday, a different problem arose.  A small helium leak was discovered in a second stage system that, if it did not work properly, the second stage could not have been deorbited after it placed the Dragon spacecraft into orbit.   Rocket stages can pose debris hazards in space if they are not deorbited.

SpaceX decided to proceed with the countdown and perform a helium spin-up pressurization test at T-1 minute before liftoff.  Musk said today that he did not see a connection between that leak and the TVC problem, but also did not rule it out.
 

@Zybbby Not obviously related to the (very tiny) helium leak, but also not out of the question
 — Elon Musk (@elonmusk) February 18, 2017

[Зловредный]

LRV_75 пишет:

Виктор Кондрашов пишет:
Его вполне можно понять в данной ситуации. Неможно им сейчас позволить себе еще один аварийный пуск.

Понять то его конечно можно, только сложность принятия подобных решений, да еще в цейтноте, от этого легче не становится    

Плюс, потом ночью можно ворочаться - а ведь улетела бы, улетела бы    

У меня, когда смотрел трансляцию, возникло чувство, как будто бы опять смотрю "Укрощение огня"

[LRV_75]

Alex_II пишет: 
А вот этим и отличаются люди способные быстро принимать решения от людей к этому неспособных. 

Вполне возможно и так, а может и "рука дрогнула" в последний момент, не?

[LRV_75]

 If the launch does not take place tomorrow, they and other late load items will have to be removed and replaced, so the launch could not occur again until Tuesday at the earliest. However, Russia is launching its own cargo spacecraft, Progress MS-05, early Wednesday morning Eastern Standard Time, so NASA will have to determine how to interweave the schedules.

Прикольно.
Два утопленника встретились 

[LRV_75]

 NASA Kennedy Space Center Director Bob Cabana said at the same press conference that NASA is in complete agreement with the Air Force. He views the autonomous system as safer and more reliable than the "human-in-the-loop" system that has been used historically. Today's problem was a software issue that produced "inconsistent data," but was readily resolved.

Т.е. получается, что они перешли на автономную систему старта, но оставили пока возможность включить режим "human-in-the-loop".

Маск сегодня был - "human-in-the-loop" )))

[Shenaar]

LRV_75 пишет:

NASA Kennedy Space Center Director Bob Cabana said at the same press conference that NASA is in complete agreement with the Air Force. He views the autonomous system as safer and more reliable than the "human-in-the-loop" system that has been used historically. Today's problem was a software issue that produced "inconsistent data," but was readily resolved.

Т.е. получается, что они перешли на автономную систему старта, но оставили пока возможность включить режим "human-in-the-loop".

Маск сегодня был - "human-in-the-loop" )))

Тут речь только про систему прерывания полёта, FTS.

[LRV_75]

Shenaar пишет:
Тут речь только про системы прерывания полёта, FTS.

Да.
Я про это и написал.
Циклограмма может быть автономной/автоматической и тогда в случае определения ненормы на каком то шаге циклограмма в автомате сделает отбой (автоматическое прерывание полета), но ест и возможность человеку вмешаться и отменить пуск вручную