View Full Version : [Space] NASA - STS-119 - ISS-15A (Discovery)
NASA STS-119 - ISS Assembly Mission 15A
http://collectspace.com/review/sts119_patch01.jpg
Benvenuti nella discussione ufficiale dell'STS-119, missione di costruzione ISS 15A.
La missione ha come obbiettivo primario l'installazione del segmento S6 di babordo con il relativo (ed ultimo) set di pannelli solari.
Dati Missione
Lancio previsto: 15 marzo 2009 - 07:43 PM EDT (16 marzo 2009, 00:43 ora italiana)
Atterraggio previsto: KSC, 28 marzo 2009 ore 03:14 PM EDT (08:14 ora italiana)
Missione Programma STS: STS-119 (125° volo Shuttle, 36° volo OV-103)
Missione Programma ISS: 15A
Orbiter: Discovery (OV-103)
Launch Pad: 39A
Durata: 14 giorni (SSPT)
Inclinazione/Altitudine: 51.6°/122 miglia nautiche
Payload principale:
Integrated Truss Segment S6
Equipaggio
Commander Lee Archambault
Pilot Dominic A. Antonelli
Mission specialist 1 Joseph M. Acaba
Mission specialist 2 Steven R. Swanson
Mission specialist 3 Richard R. Arnold
Mission specialist 4 John L. Phillips
Launching ISS Expedition 18 Crew Member: Koichi Wakata
Landing ISS Expedition 18 Crew Member: Sandra Magnus
http://spaceflight1.nasa.gov/gallery/images/shuttle/sts-119/lores/sts119-s-002.jpg
Assembly Mission 15A
http://www.nasa.gov/images/content/160521main_jsc2006e43507_low.jpg (http://www.nasa.gov/images/content/160542main_jsc2006e43507_high.jpg)
(Cliccare sulla foto per vederla in alta risoluzione)
Altre informazioni
SpaceFlightNow.com Mission Coverage homepage: http://spaceflightnow.com/shuttle/sts119
Mission Quicklook (SpaceFlightNow.com)
[non disponibile]
Master Flight Plan (SpaceFlightNow.com
http://spaceflightnow.com/shuttle/sts119/fdf/119flightplan.html
Press Kit
http://www.nasa.gov/pdf/304681main_STS-119_Press_Kit.pdf
Execute Packages
[non ancora disponibile]
Previsioni Meteo - Lancio (KSC)
http://www.patrick.af.mil/shared/media/document/AFD-070517-025.pdf
NASA TV
Programma
PDF: http://www.nasa.gov/tvschedule/pdf/tvsked_rev0.pdf
URL: http://www.nasa.gov/multimedia/nasatv/MM_NTV_Schedule.html
NASA TV - Real Media: http://www.nasa.gov/ram/35037main_portal.ram
NASA TV - Windows Media: http://www.nasa.gov/55644main_NASATV_Windows.asx
NASA TV - Real Audio: http://www.nasa.gov/ram/55643main_NASATV_Audio_Only.ram
Eccomi, sperando che questa volta parta :sperem:
Ciao
Eccomi, sperando che questa volta parta :sperem:
Ciao
Mi associo! :D
SpaceFlightNow.com:
Countdown on schedule, weather forecast looks good
The shuttle Discovery's countdown to launch Wednesday is proceeding smoothly, officials said today, with no technical problems of any significance at the launch pad and excellent weather expected throughout the week. Forecasters are calling for a 90 percent chance of acceptable weather Wednesday and Thursday, decreasing slightly to 80 percent "go" on Friday.
"The weather looks very good for launch, I'm very happy to say. Right now we're just looking at a really nice upper-level ridge that's been holding off the weather, the fronts that tend to come into the U.S. right now," said Kathy Winters, the shuttle weather officer at the spaceport. "There's one in the central U.S., it'll stay there, it will be blocked by this high pressure ridge. So for Florida, the weather looks really good. Nice mild conditions, warm temperatures.
http://www.spaceflightnow.com/shuttle/sts119/090309count/
SCRUB!
Shuttle Discovery launch scrubbed by hydrogen leak
This evening's planned launch of the space shuttle Discovery has been called off due to a hydrogen leak experienced during fueling of the external tank.
NASA spokeswoman Candrea Thomas says there was a leak somewhere around a ground umbilical carrier plate between support equipment and the shuttle. The launch team is draining the liquid hydrogen tank and plan to cycle a valve as part of troubleshooting.
This delay will be at least 24 hours.
http://www.spaceflightnow.com/shuttle/sts119/status.html
---
Sembra ci sia stata una perdita di idrogeno liquido durante il riempimento dell'ET. Hanno deciso la sostituzione di una valvola nell'interfaccia MLP-Shuttle. Lancio posticipato di almeno un giorno.
Speriamo che risolvano alla svelta il problema, perché sarebbe spiacevole una missione accorciata.
Ma sono le stesse valvole che hanno fatto slittare il lancio fino ad oggi?
Speriamo che gli ultimi lancio dello shuttle non siano sempre così, anche se negli ultimi due anni è già la seconda missione che subisce così gravi ritardi per le famose o meglio famigerate valvole.
EDIT: leggendo su forum astronautico riportano che non sono le famigerate valvole che abbiamo imparato a conoscere in questi mesi, ma fanno parte del sistema di caricamento dell'idrogeno dell'external tank.
Speriamo che si parta domani.
Io comunque sto aspettando con trepidazione luglio, quando partirà la nuova avventura, con il progetto constellation.
EDIT: leggendo su forum astronautico riportano che non sono le famigerate valvole che abbiamo imparato a conoscere in questi mesi, ma fanno parte del sistema di caricamento dell'idrogeno dell'external tank.
Si esatto, son due cose diverse... il problema che ha lungamente ritardato il lancio era dovuto alle valvole che servono ad equalizzare la pressione dell'idrogeno, localizzate all'altezza dell'interfaccia tra l'ET e l'orbiter.
Il problema di oggi invece è dovuto ad una perdita di idrogeno gassoso nell'interfaccia tra l'ET e la valvola di ventilazione, chiamata GUCP (Ground Umbilical Carrier Plate), situata nell'intertank dell'ET tra il serbatoio di quest'ultimo e quello d'ossigeno.
Speriamo che si parta domani.
Purtroppo è appena stato spostato a NET domenica 15 giovedi alle ore 07:43 PM EDT (00:43 ora italiana di lunedì 16). A quanto pare è possibile quindi che si proceda alla sostituzione della valvola, attività che più tempo. Certo che c'è il forte rischio di un accorciamento di 2 giorni.
edit: dimenticavo che c'è infatti la partenza della Soyuz il prossimo 26 marzo!
Da SpaceFlightNow.com:
Launch of shuttle Discovery scrubbed by leak
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 11, 2009
NASA's Mission Management Team plans to meet at 5 p.m. to discuss the potential impact of a gaseous hydrogen leak that interrupted the shuttle Discovery's fueling today and forced mission managers to order a scrub. Engineers are preserving the option of a possible launch try Thursday, at 8:54:31 p.m., if the MMT concludes the problem can be resolved in time. As of this writing, it's not clear what might be required to resolve the issue.
"NASA officials scrubbed Wednesday's attempt at 2:37 EDT to launch space shuttle Discovery after a slight leak was detected in a gaseous hydrogen (GH2) vent line," NASA said in a statement. "The vent line is at the intertank region of the external tank and is the overboard vent to the pad and the flare stack where the vented hydrogen is burned off. The launch team is resetting to preserve the option of attempting a Thursday night liftoff at 8:54 p.m. EDT depending on what repairs are needed and what managers decide. The Mission Management Team is meeting at 5 p.m. today to discuss the issue."
http://www.spaceflightnow.com/shuttle/sts119/090311scrub/
http://www.nasa.gov/images/content/180842main_119-pad-720-2.jpg
>With the tank now drained, it will take 24 hours to boil off the remaining LH2 in order to inert tank. Engineers will then again access and look for gross misalignment of QD (Quick Disconnect). Afterwards, engineers will perform a decay check, remove the QD and inspect flight seal.
In around two days time, work will then move towards the installation of a new flight seal, head of decay checks and the reconnection of the vent line.
"In the reinstallation of the flight seal, there is a 30 hour retorque requirement, that pushes us to a Monday launch. The team is looking to examine if there is some wiggle room in the 30 hr torque requirement, then we could potentially get a Sunday launch attempt," noted a MMT memo acquired by L2.<
Leinbach: We got into our ET loading on time. Everything was going fine, it's an automated sequence for both systems. When we are about 98% on the fuel, we go from fast fill to slow fill. During that, we open the vent valve, that's when we noticed the hydrogen on the ground. We cycled that valve, in the past, it went away, usually a transient issue, or ice buildup.. this time, it didn't. We know we have some hardware compromise, we cycled it 8 or 9 times. We are sure we have some hardware issues, we are not sure where it is, but I can tell you it's 99.9% sure it's on the GROUND side, not the FLIGHT side. We didn't see anything between the intertank and the locking points, so it's clearly a ground side. We were talking with the team, and the best course was to NOT fly, and then drain the tank. We declared a scrub, and went into a 24 hour turnaround. When we started into it, we cycled it again, and it continued to leak. We'll know over the next few days where it is at. We're done with the draining, and we are inerting the tank. It'll take about 20 hours to boil off, before we can even get our hands on it. Plan is tomorrow, we will troubleshoot it in the afternoon. We'll look at the QD, and more than likely opening the valve itself. We'll come back tomorrow afternoon and gather back with the program, and then sometime Friday, we'll have more details on the hardware itself.
The leak was outside of the vehicle, and we violated the safety leak level. There was no harm to the vehicle.
Mike Moses: We heard the prelim plan, and the right thing is to let that team go ahead and work on what they need to see. There are some things in there we can hopefully get better on, like retorque tests, but we have time to do that.. and we'll remeet tomorrow as an MMT to talk about that schedule. We're trying hard to get to the 15th, but if we can't, it'll be the 16th.
First off, we told the crew and management team to reset themselves for a NET Sunday launch. I don't know the specifics of the crew, but they'll have it a little easy as we aren't going day by day now.
Station, we had talked about that today too. The ISS team and the Mission Operations team is looking pretty good. We're definitely going to take a look at that throughout the days. We can have a LATEST launch of March 17th. We don't want the Shuttle there while the Soyuz is docking. It's just too busy of a time for the crews, with a handover and EVAs, so that's a no-go. We moved some of the EVA activities to the stage, and they ARE able to do that. The biggest two bits are handing over the truss and installing it, then deploying the SAW. With this flight and crew, we can do that in the time needed, and the rest during the stage. The only thing that we don't like is that we are making the 119 crew shorter.. they have trained so hard that they know what to do inside and out. We are having the STS-119 crew to do some get ahead tasks (breaking torque bolts on the batteries) in prep for STS-127.
Another bit would be a FD4 Rendezvous. A launch on Sunday would be a FD3 docking, and the 16th would be a FD4 docking, with only one, maybe two EVAs. We would meet our mission objectives, the S6 install, with either one.
The other problem is an Atlas, sitting behind us. We had negotiated with them (they launch the 14th) to give us range, and it doesn't look like all that talking will pay off.. we basically just got off the phone with them, and we really want to wait until tomorrow to see. If we can't go for Monday, we'll ask the Atlas crew if they can go ahead of us, and we'll go after them.. but that's basically how it's going to play together, but I can't tell you where the balls are going to fall. Should be straight forward enough.
Bill Harwood: Did this valve effect your pressure inside the tank as the fuel boils off? Was it leaking in the disconnect? How does this relate to the pressure?
Leinbach: It is the system that maintains the pressure in the tank, yes, as we are filling up. Hydrogen begins to boil off as it is loaded, which causes pressure. We went through that during the early parts of tanking, we opened the valve, and didn't see any leaking before. It's external to the flight element, it's nothing internal, it was outside the tank. We have leak detectors outside the area just for this case, and all the information picked it all up at the same time. Very easy thing to diagnose.. we don't know what the problem is until we get our hands on it. No problem with over pressurizing the tank, or under pressurizing the tank.
Estratti presi da qui (http://forum.nasaspaceflight.com/index.php?topic=16173.0;all)
Da SpaceFlightNow.com:
Pad technicians trying to fix hydrogen vent line leak
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 13, 2009;
Updated after news conference
As expected, engineers troubleshooting the hydrogen vent line leak that grounded the shuttle Discovery Wednesday were unable to detect any problems using helium at ambient temperatures, officials said today. While no obvious "smoking guns" have been found, engineers are hopeful that replacing the seals and internal components in the shuttle-vent line interface will resolve the problem and clear the way for launch.
http://www.spaceflightnow.com/shuttle/sts119/090313update/arms.jpg
The hydrogen vent arm connects the pad tower to the backside of Discovery's external fuel tank. Credit: NASA TV
-
http://www.spaceflightnow.com/shuttle/sts119/090313update/
NASA begins second launch attempt for Discovery
The space shuttle launch team will take another shot at sending Discovery into orbit Sunday. NASA believes the leak in the gaseous hydrogen venting system has been fixed, though officials won't know for sure until Discovery is fueled. A sunset blastoff of the 125th shuttle mission is scheduled for 7:43 p.m. EDT from Kennedy Space Center.
http://www.spaceflightnow.com/shuttle/sts119/status.html
Nessuna perdita questa volta!
No hydrogen leak detected during today's fueling
The space shuttle launch team fueling Discovery says the leak in the gaseous hydrogen venting system did not reoccur today. Replacement of hardware at the pad appears to have fixed the leak. A sunset blastoff of the 125th shuttle mission is scheduled for 7:43 p.m. EDT from Kennedy Space Center.
http://www.spaceflightnow.com/shuttle/sts119/status.html
Ottimo :D
Prima della riempitura è stato avvistato (http://www.collectspace.com/ubb/Forum30/HTML/000778.html#bat) un pipistrello appeso all'ET:
http://www.collectspace.com/review/sts119_bat02.jpg
Stowaway spotted
A bat has been spotted clinging to the backside of Discovery's external tank, about a quarter to a third of the way from the bottom.
Mission managers expect the bat will fly away once the tank gets cold enough after being filled with cryogenic liquid hydrogen and liquid oxygen, now underway.
"If it doesn't," says NASA spokesman Mike Currie, "the bat is not expected to be a debris problem."
LOL @ bat! :D
1948 GMT (3:48 p.m. EDT)
T-minus 3 hours and counting. The countdown clocks are ticking again after the planned two-and-a-half hour built-in hold. Clocks will proceed to T-minus 20 minutes when the next hold is scheduled. A final hold occurs at the T-minus 9 minute mark to synch up with the 7:43:46 p.m. EDT launch time.
Segnalo che da questa missione si può seguire anche il nuovo Live Coverage di SpaceFlightNow.com:
http://www.spaceflightnow.com/shuttle/sts119/status.html
+Benito+
15-03-2009, 21:16
Bello il live coverage! Spero non ritardino ancora visto che già il lancio è previsto all'una di notte!
P.S. la tipa che commenta si chiama Candrea Thomas?! OMG
P.S. 2 : come mai quando il tipo con il modellino dell'STS in mano ha inziato a dire che la causa della perdita del columbia è stato un pezzo di schiuma che ha colpito l'ala creando un BIG BIG HOLE improvvisamente da "on air" si è passati a "off air"? :D
Bello il live coverage! Spero non ritardino ancora visto che già il lancio è previsto all'una di notte!
P.S. la tipa che commenta si chiama Candrea Thomas?! OMG
è anche abbastanza :oink:, solo che fa un pò troppi strafalcioni IMHO.
P.S. 2 : come mai quando il tipo con il modellino dell'STS in mano ha inziato a dire che la causa della perdita del columbia è stato un pezzo di schiuma che ha colpito l'ala creando un BIG BIG HOLE improvvisamente da "on air" si è passati a "off air"? :D
LOL :D
2155 GMT (5:55 p.m. EDT)
The odds of acceptable weather officially improved to 100 percent. The weather team says there's no chance of violating the launch rules today.
Su NASA TV stanno facendo vedere la "mattonella" del TPS modificata per il primo degli esperimenti per "far scattare" i boundary layer (http://blogs.nasa.gov/cm/blog/waynehalesblog.blog/posts/post_1232662169255.html)
2249 GMT (6:49 p.m. EDT)
T-minus 9 minutes and holding. Countdown clocks have gone into the planned 45-minute, 44-second built-in hold. Today's launch is targeted for 7:43:44 p.m. EDT, a slight change two seconds earlier than previously advertised because of the latest orbital tracking of the space station.
2331 GMT (7:31 p.m. EDT)
NASA launch director Mike Leinbach has conducted his poll and given approval to resume the countdown for liftoff at 7:43 p.m. EDT.
Voglio anche io il video a questa (http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=16197.0;attach=117862;image) risoluzione :cry:
2341:44 GMT (7:41:44 p.m. EDT)
T-minus 2 minutes. The astronauts are being instructed to close and lock the visors on their launch and entry helmets.
At T-minus 1 minute, 57 seconds the replenishment to the flight load of liquid hydrogen in the external tank will be terminated and tank pressurization will begin.
2342:44 GMT (7:42:44 p.m. EDT)
T-minus 1 minute. Computers are verifying that the main engines are ready for ignition. Sound suppression water system is armed. The system will activate at T-minus 16 seconds to suppress the sound produced at launch. And the residual hydrogen burn ignitors are armed. They will be fired at T-minus 10 seconds to burn off hydrogen gas from beneath the main engine nozzles.
Shortly, the external tank strut heaters will be turned off; Discovery will transition to internal power; the liquid oxygen and liquid hydrogen outboard fill and drain valves will be closed; the payload bay vent doors will be positioned for the launch; and the gaseous oxygen vent arm will be verified fully retracted.
2344:44 GMT (7:44:44 p.m. EDT)
T+plus 60 seconds. The shuttle is on course for Tuesday's rendezvous and docking with the international space station. Discovery is carrying the fourth and final solar array truss for the outpost that will boost the station to full power.
2349 GMT (7:49 p.m. EDT)
T+plus 5 minutes, 20 seconds. "Press to ATO". Discovery can reach an orbit, albeit a low orbit, on two engines should one shut down now. But all three powerplants are still running just fine.
2350 GMT (7:50 p.m. EDT)
T+plus 6 minutes, 25 seconds. "Press to MECO" Discovery can now achieve a safe orbit on two engines. All three remain in good shape.
2352 GMT (7:52 p.m. EDT)
T+plus 8 minutes, 33 seconds. MECO. Main Engine Cutoff confirmed! Discovery in space for its long-awaited mission to finish consstructing the station's truss backbone.
L'illuminazione di questo lancio è stata spettacolare :)
2352 GMT (7:52 p.m. EDT)
T+plus 9 minutes. It was a nominal MECO. A quick boost from the Orbital Maneuvering System engines is not required to reach the planned preliminary sub-orbital trajectory.
L'illuminazione di questo lancio è stata spettacolare :)
Veramente eccezionale!
:cool:
Da SpaceFlightNow.com:
Crew spending first day in space inspecting Discovery
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 16, 2009
The Discovery astronauts are working through a busy day of heat shield inspections, spacesuit checkouts and work to ready the shuttle for docking Tuesday with the international space station. Flight controllers at the Johnson Space Center in Houston, meanwhile, are continuing to evaluate the orbit of a piece of Russian space junk to determine if a space station debris avoidance maneuver might be necessary later today.
"Tracking data from government resources indicated a piece of a Cosmos spacecraft ... was going to pass within the (safety) threshold," said Pat Ryan in mission control. "Plans at that point were begun for a possible debris avoidance maneuver, an engine burn by the international space station that would move it so that it was well clear of this piece of space junk."
---
http://www.spaceflightnow.com/shuttle/sts119/090316fd2/
demonbl@ck
16-03-2009, 21:29
No, adesso voglio sapere per quale fottutissimo motivo io non vedo mai sti 3d. :muro: :muro: :muro: :muro: :mad: :mad: :mad:
Leroy Cain: MMT met today and we have no major problems. Discovery performed flawlessly during launch and ascent phrase. We have a few minor anomalies, which we sometimes class as funnies. None of which are significant.
Prelim data indicts very clean ascent, so no concerns there.
Flow Control Valves performed nominally. No indications of any issues there.
Summary, shuttle performance was outstanding. Very excited about docking tomorrow.
4chr
Video (http://www.youtube.com/watch?v=SdkhNRcCfRw) degli astronauti sulla ISS che guardano il lancio dello Shuttle.
Aggiornamento (http://www.nasaspaceflight.com/2009/03/sts-119-opening-tps-inspections-several-issues-worked/) sulla missione:
Discovery’s spectacular launch has been deemed extremely clean, with no foam or debris issues of note found, bar one late release relating to a remnant of a tyvek cover at T+17 seconds into ascent. However, this has already been cleared, due to no impact noted on the vehicle.
Discovery’s launch came after a few months of evaluations into the Flow Control Valves (FCVs), which led to three valves - all of which had flow with Discovery four to five times previously - being ‘cherry picked’ for the ride to orbit.
The concern related to a liberation from one valve’s poppet during Endeavour’s STS-126 launch last year, first seen via ascent data evaluated by the MER engineers.
However, for STS-119, that data - as seen in a presentation of their data during ascent - showed all three valves performed without issue, mirroring each other’s performance via their cycles used to keep the pressurization of the tank at nominal rates.
During ascent, three indications were registered by the Wing Leading Edge Impact Detection System (WLE IDS), which are used to “feel” indications of impacts on the RCC panels.
These sensors are highly sensitive and usually detect “ghost impacts” rather than actual impacts, especially on orbit.
The three indications will be evaluated via their timing and strengths, in collaboration with ascent imagery.
An issue has also been noted with Fuel Cell O2 Flowmeter measurement, which has failed Off Scale Low (OSL), which holds slight impacts to its monitoring and use. Discovery has had similar problems of the same nature during her previous flights, such as STS-116.
“The Fuel Cell 3, s/n 116, Oxygen Flowmeter Measurement Failed OSL at 075/01:57:15 GMT,” noted a report to the Mission Management Team (MMT) on L2. “The Loss of the FC 3 O2 FM is negligible impact to the crew and a slight impact to MOD/EGIL (Electrical Generation and Illumination Engineer).
“EGIL will use other parameter such as pressure decays, purge line temperatures, and fuel cell performance to verify FC 3 purge.”
franklar
17-03-2009, 17:48
Appena visto il passaggio in cielo della ISS seguita a ruota dallo shuttle.
SPETTACOLO! :eek:
SFN:
It's rendezvous day for Discovery and space station
The space shuttle Discovery is closing in on the international space station today, on track for a docking around 5:13 p.m. EDT. Commander Lee Archambault and his six crewmates begin final rendezvous operations shortly after waking up.
http://www.spaceflightnow.com/news/images/ni0903/17station_400.jpg
http://www.spaceflightnow.com/shuttle/sts119/status.html
Non immaginavo che i moduli abitativi fossero così piccoli!!!
Non immaginavo che i moduli abitativi fossero così piccoli!!!
Dipende anche dall'inquadratura. Imho in questa foto danno un impressione diversa* (che poi il "truss" e i pannelli siano grossi è vero :D):
http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/ISS_after_STS-124_06_2008.jpg/800px-ISS_after_STS-124_06_2008.jpg
*anche se è un po' è merito di ATV che da una mano ad aggiungere volume
E' iniziato l'avvicinamento per il docking e finalmente questa volta è ripreso in diretta. :)
Problemi di comunicazione con l'ISS sul canale SG2 (Space to Ground-2).
E' iniziato l'avvicinamento per il docking e finalmente questa volta è ripreso in diretta. :)
E' sempre stato ripreso in diretta che io ricordi.
Via alla RPM!*
(R-bar Pitch Maneuver, conosciuta anche come Rendezvous Pitch Maneuver)
2019 GMT (4:19 p.m. EDT)
The rendezvous pitch maneuver -- the 360-degree flip -- is beginning. The shuttle is the under the control of commander Lee Archambault, who is flying the ship from the aft flight deck.
As the shuttle's underside rotates into view, the station's crew will photograph Discovery's belly with handheld digital cameras equipped with 400- and 800-millimeter lenses.
The 800mm images should provide one-inch resolution for examination of landing gear door and external tank umbilical door seals. The 400mm will yield three-inch resolution.
After completing the RPM maneuver, Discovery will fly directly ahead of the space station with the shuttle's nose facing deep space and its cargo bay pointed at the lab complex. Then Archambault will guide the spacecraft to a docking with a pressurized mating adapter attached to the Harmony connecting module.
E' sempre stato ripreso in diretta che io ricordi.
Se non sbaglio nelle ultime missioni (dovrei vedere quante) mi sembra fosse registrato e riproposto circa un ora più tardi (almeno così era riportato nel tv skedule della nasa).
comunque spettacolare la pitch maneuvre in diretta :D
Se non sbaglio nelle ultime missioni (dovrei vedere quante) mi sembra fosse registrato e riproposto circa un ora più tardi (almeno così era riportato nel tv skedule della nasa).
Era sicuramente ri-proposto, ma nel media channel c'è sempre stata la diretta. Che non fosse live ma solo "raccontata" o al massimo con immagini in sequenza è normale, non sempre c'è la copertura in banda Ku tramite la rete di satelliti TDRS.
Cmq... tutto procede bene per il docking!
2120 GMT (5:20 p.m. EDT)
CONTACT AND CAPTURE! Discovery has arrived at the space station to deliver the $300 million Starboard 6 solar array truss, the fourth and final power module for the international outpost. The 15.5-ton girder will be connected to the station's backbone by spacewalking astronauts during the mission.
The relative motions of the shuttle and station will be allowed to damp out over the next few minutes by the spring-loaded docking system. Later, the hooks and latches will be closed to firmly join the two craft and Discovery's Orbiter Docking System docking ring will be retracted to form a tight seal.
The opening of hatches between the station and shuttle is expected in about 90 minutes. That will be followed by a welcoming ceremony and safety briefing.
+Benito+
17-03-2009, 21:45
noooo mi son perso il live! indirizzo indirizzo!
Uk, forse per evento registrato intendevi l'hatch opening? Per in effetti spesso, come oggi, è capitato che avvenisse durante il periodo di non copertura Ku-band e fosse riproposto più tardi...
noooo mi son perso il live! indirizzo indirizzo!
RPM:
http://www.youtube.com/watch?v=Po75RB4tbew
Docking:
http://www.youtube.com/watch?v=k6_DXcs96Co
+Benito+
17-03-2009, 23:46
Grazie ;)
RPM:
http://www.youtube.com/watch?v=Po75RB4tbew
Docking:
http://www.youtube.com/watch?v=k6_DXcs96Co
Leggi anche tu i thread dedicati alla missione su nasaspaceflight.com? (Ronsmytheiii è un moderatore del sito)
Hatch opening:
http://www.youtube.com/watch?v=pV3dMm2v_qk
Uk, forse per evento registrato intendevi l'hatch opening? Per in effetti spesso, come oggi, è capitato che avvenisse durante il periodo di non copertura Ku-band e fosse riproposto più tardi...
A dirti la verità non ho mai avuto la fortuna di poter vedere sia l'aggancio che l'apertura del portello, notavo solo che sui TV schedule che rilascia la NASA, c'era sempre scritto che l'evento non era in diretta, quindi non sò dirti se era l'uno o l'altro.
Dovrei vedere se ho salvato i schedule di qualche missione precedente per essere più preciso.
___________________________________________________________________________
Edit:
Ad esempio nello schedule dell' sts 126 al punto 31 del giorno 16 novembre c'è scritto:
31 ENDEAVOUR / ISS DOCKING (may not be televised live)
___________________________________________________________________________
Ora hanno tolto i pannelli solari dal cargo bay del Discovery.
ciao
Leggi anche tu i thread dedicati alla missione su nasaspaceflight.com? (Ronsmytheiii è un moderatore del sito)
Si si infatti, anzi i link ai video li ho presi proprio dalla discussione su NSF.
:)
A dirti la verità non ho mai avuto la fortuna di poter vedere sia l'aggancio che l'apertura del portello, notavo solo che sui TV schedule che rilascia la NASA, c'era sempre scritto che l'evento non era in diretta, quindi non sò dirti se era l'uno o l'altro.
Dovrei vedere se ho salvato i schedule di qualche missione precedente per essere più preciso.
___________________________________________________________________________
Edit:
Ad esempio nello schedule dell' sts 126 al punto 31 del giorno 16 novembre c'è scritto:
31 ENDEAVOUR / ISS DOCKING (may not be televised live) ___________________________________________________________________________
Ah beh si, se ti riferisci a quello scrivono spesso "may not be televised live", perchè la banda Ku per le trasmissioni in alta frequenza delle immagini live è disponibile solo in determinate finestre di copertura dei satelliti TDRS (Tracking and Data Relay Satellite System)... quindi come ieri è possibile che per un ritardo nella "scaletta" l'evento non si in diretta ma riproposto più tardi.
+Benito+
18-03-2009, 20:37
Mi fa sempre impressione vedere una decina di persone in un container volante che possono sopravvivere cazzeggiando :D
Pensare da dove siamo partiti solo 50 anni fa dopo millenni di zappe e forconi, mi emoziona
Si si infatti, anzi i link ai video li ho presi proprio dalla discussione su NSF.
:)
Ok... quando avrò più tempo per sfruttarlo voglio provare a fare l'abbonamento di 2 mesi a L2 (http://www.nasaspaceflight.com/l2/). Già solo il video (trailer (http://www.youtube.com/watch?hl=it&v=vRptWYt1-S8)) da 1.9 Gb che mostra il VAB, OPF e pad mi attira.
Mi fa sempre impressione vedere una decina di persone in un container volante che possono sopravvivere cazzeggiando :D
Pensare da dove siamo partiti solo 50 anni fa dopo millenni di zappe e forconi, mi emoziona
*
A proposito di cazzeggio qui (http://www.youtube.com/watch?v=YFvkj3fgZgA) c'è qualche buon esempio ripreso durante STS-120 ( il mio preferito è nascondiamoci dal controllo missione :D).
SFN:
Spacewalkers bolt final power truss to the station
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 19, 2009
The $300 million S6 solar array truss segment has been bolted into place on the far right end of the space station's main power truss.
Astronauts John Phillips and Koichi Wakata, operating the space station's robot arm from a work station inside the Destiny laboratory module, carefully guided the 31,000-pound starboard 6, or S6, truss segment into contact with the S5 spacer segment at 2:17 p.m. EDT.
Spacewalker Richard Arnold used a power tool to drive an internal capture claw closed, pulling the two segments together. Four big corner bolts then were driven home to complete the physical attachment at 3:06 p.m. EDT.
http://www.spaceflightnow.com/shuttle/sts119/090319fd5/index2.html
ISS FULL POWERED !!! :yeah:
SFN:
Power-generating solar wings successfully unfurled
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 20, 2009
A second set of solar blankets was successfully deployed today from the newly installed S6 solar array truss on the international space station, accomplishing the primary goal of the shuttle DIscovery's mission. The deployment completed the lab's U.S. power system eight years after assembly of the electrical system began with launch of the first set of solar panels.
The astronauts successfully extended S6 segment's channel 1B solar wing earlier today and despite concerns about past problems with blanket slats sticking together due to a phenomenon known as "stiction," there were no problems of any significance.
http://www.spaceflightnow.com/shuttle/sts119/090320fd6/index2.html
Finita anche l'EVA 2 (sono un po' in ritardo con la notizia :D):
Spacewalk No. 2 ends with mixed results (http://www.spaceflightnow.com/shuttle/sts119/090321fd7/index4.html)
Astronauts Steven Swanson and Joseph Acaba began repressurizing the Quest airlock module at 7:21 p.m., closing out a grueling six-and-a-half-hour spacewalk after running into problems deploying a balky cargo platform.
The astronauts successfully loosened a solar array battery pack as planned, however, attached a GPS antenna to a Japanese module and carried out a detailed photo-survey of the station's big radiator panels, all high-priority items.
Toward the end of the excursion, Swanson used tethers to tie down the balky unpressurized cargo carrier attachment system, or UCCAS, to prevent any inadvertent movement while engineers devise a way to lock it into place.
"Congratulations, guys. We sure appreciate the hard work you did for our beautiful space station," commander Mike Fincke radioed the spacewalkers from the outer airlock. "You guys proved that flexibility is definitely key. And a special congratulations to Joe. This was your first time out there, great job, my friend. So congratulations."
But time lost trying to fully deploy the UCCAS mechanism forced the spacewalkers to defer the deployment of another cargo platform on the right side of the station's solar power truss. Swanson also had problems disconnecting a cable from a patch panel on the zenith 1, or Z1, truss segment extending up from the Unity connecting module.
This was the 122nd spacewalk devoted to station assembly and maintenance since construction began in 1998 and the second of three planned for Discovery's mission. Total space station EVA assembly time now stands at 768 hours and 33 minutes, or about 32 days.
Per sbloccare il pin dell'UCCAS che da problemi stanno preparando un bel set di strumenti aggressivi:
• Hammer A/L crewlock- Staging Bag, fish stringer#1, Hook #7
• Cheater bar A/L crewlock- Staging Bag, fish stringer#1, Hook #6
• Prybar A/L crewlock- Staging Bag, fish stringer#2, Hook #4
• Russian Hammer (still working on permission to use this)
• Bolt puller Airlock Toolbox #1 zenith door
• GP Cutters Airlock Toolbox #2 nadir door
+Benito+
22-03-2009, 19:35
E' da un po' che mi chiedo come mantengano il bilancio termico nella stazione (e nello shuttle), leggo spesso dei radiatori della ISS o di quelli montati sull'interno dei portelli della baia di carico, ma mi chiedo: a che temperatura lavorano per irraggiare così tanta energia? (non si può scambiare in altro modo)
E' da un po' che mi chiedo come mantengano il bilancio termico nella stazione (e nello shuttle), leggo spesso dei radiatori della ISS o di quelli montati sull'interno dei portelli della baia di carico, ma mi chiedo: a che temperatura lavorano per irraggiare così tanta energia? (non si può scambiare in altro modo)
In generale non lo so. Sullo Shuttle ho questo "riassunto" che da qualche dato:
Space Shuttle Thermal Control 101:
"Depending on the mission phase, the Freon cooling loops are cooled four different ways. Prior to launch, cooling is provided by way of the Ground Support Equipment (GSE). After lift-off, there is no active means of cooling until after SRB SEP. It takes the orbiter slightly more than 2 minutes to reach an altitude where water evaporation provides effective cooling (i.e. FES). Until that time, sufficient “thermal inertia’’ is in the Freon loops to limit the temperature increase so that no active heat rejection is required.
At SRB SEP, the FES (flash evaporator system) receives a GPC (general purpose computer) “ON” command from the BFS (backup flight system) and begins providing active cooling. The FES continues to be the primary cooling source through the ascent phase and on into the post insertion timeframe. During the Post Insertion Checklist procedures, flow is initiated through the radiators, the payload bay doors are opened, and the radiators become the primary source of cooling. The FES may be left on to provide supplemental cooling when necessary. If the orbiter is in a warm attitude, radiator cooling efficiency may decrease and the FES may be needed to provide additional cooling to achieve the desired Freon loop temperatures.
During the deorbit prep procedures, the radiators are “coldsoaked” to provide cooling for use
later during entry. The radiator coldsoak process lowers the temperature of Freon in the radiators by changing the radiator control temperature from 38° F to 57° F. Since less cool Freon from the radiators is required to control to this high temperature, flow through the radiators is slower. As a result, the Freon spends a longer period in the radiators exposed to space and becomes colder than if the flow control valve were controlling for a 38° F radiator out temperature. The FES is used to cool the Freon from 57° F to 39° F. After approximately 1 hour of coldsoak, the radiators are bypassed, trapping the cold Freon in the radiators. At this point, the FES providesall the cooling to the Freon loops. The FES supplies cooling during the rest of the deorbit, through EI (entry interface @ 400,000 feet), and down to V = 12k (approximately 175,000 feet).
At V = 12k (velocity of 12,000 feet per second), the radiators are activated, since below 100,000 ft the atmospheric pressure is too high for the FES to cool effectively. Radiator flow is reinitiated after the auto startup sequence is complete. The cool Freon stored in the radiators is used as the primary source of cooling from this point through rollout.
Once the orbiter is on the ground and the radiator coldsoak is depleted, the NH3 (ammonia) boiler is activated. The MCC (mission control center) calls the crew to request the NH3 activation. The NH3 boilers are used as the primary cooling source until the GSE cooling cart hookup is complete. Then the NH3 cooling is deactivated, and GSE cooling is initiated."
One of the real concerns with this issue is not just that some freon might leak out, rather the concern is the potential for a loss of cooling capability. The orbiter can work on a single loop just fine, however, there will likely be an increased use of water for the FES and a need for possible electrical power downs - this is dependent on current orbiter heat loads. You definitely don't like to be down to one loop because of the loss of redundancy. If both loops were to be lossed while on orbit you would need to come home quickly (i.e. De-Orbit as soon as possible and land at the next PLS - primary landing site).
Mark Kirkman
+Benito+
22-03-2009, 23:05
interessante, sembra che esistano tre sistemi, uno che usa un ciclo frigorifero con compressione/laminazione e dissipa a temperature basse (usato normalmente), uno che sfrutta l'evaporazione dell'acqua usato prima del lancio e in caso di necessità in orbita ed un ciclo ad assorbimento ad ammoniaca usato durante le fasi finali dell'atterraggio, probabilmente sfruttando le temperature elevate in determinate zone della fusoliera
Sulla ISS ho cercato un po' e ho trovato questo (http://www.boeing.com/defense-space/space/spacestation/systems/docs/ISS%20Active%20Thermal%20Control%20System.pdf) interessante PDF. Qualche notizia generale si trova qui (http://www.lockheedmartin.com/products/HeatRejectionRadiators/index.html):
The company produced and delivered six 2,470-pound HRS radiator assemblies and four 1650-pound PVR assemblies to NASA. The HRS Radiators comprise two wings of three assemblies each, one on either side of the ISS main truss. Each HRS assembly consists of eight panels measuring 9 ft. x 11 ft. When retracted in the launch configuration -- folded accordion fashion -- the radiator assemblies will fit easily into the payload bay of the Space Shuttle Orbiter. When attached to the ISS in orbit, each HRS assembly will extend to 11 ft. x 75 ft. via an electric motor driven "scissor" mechanism.
Each HRS assembly is capable of rejecting at least 11.8 kilowatts of excess ISS heat, thereby providing cooling to the crew compartment, spacecraft subsystems and experiments. The Lockheed Martin Missiles and Fire Control - Dallas-produced radiator assemblies will mate with a pumped liquid ammonia heat transfer system to cool the ISS crew and equipment.
The radiator panels are made of an aluminum bonded honeycomb material with imbedded freeze tolerant Inconel flow tubes and painted with a white ceramic material selected to withstand the space environment.
Each HRS assembly is designed to have a 10-year life. Lockheed Martin Missiles and Fire Control - Dallas is a subcontractor to Boeing -- Huntington Beach, Calif., formally McDonnell Douglas, on the program.
The company also produced four photovoltaic radiator assemblies for cooling the current early ISS systems, as well as the ISS photovoltaic electrical power system components. The four 1650-pound PVRs consist of seven 6 ft. x 11 ft. panels, again deployed by an electric motor driven "scissor" mechanism. The PVRs also internally flow liquid ammonia coolant and are made of the same material as the HRSs. Each PVR will be capable of rejecting at least nine kilowatts of excess heat.
ed un ciclo ad assorbimento ad ammoniaca usato durante le fasi finali dell'atterraggio
Per essere precisi dopo l'atterraggio:
Once the orbiter is on the ground and the radiator coldsoak is depleted, the NH3 (ammonia) boiler is activated. The MCC (mission control center) calls the crew to request the NH3 activation. The NH3 boilers are used as the primary cooling source until the GSE cooling cart hookup is complete. Then the NH3 cooling is deactivated, and GSE cooling is initiated."
SFN:
http://www.spaceflightnow.com/news/images/ni0903/25issflyaround_400.jpg
Discovery departs the international space station
Shuttle Discovery undocked from the international space station at 3:53 p.m. EDT today, ending an 8-day assembly visit. The shuttle delivered the final solar array power module, attaching the 15.5-ton truss and unfurling its giant wings that completed the space station's power grid and doubled the amount of electricity available for international science aboard the outpost.
http://www.spaceflightnow.com/shuttle/sts119/status.html
Video del flyaround della ISS:
http://www.youtube.com/watch?v=Bz1V3YWXxf4
Da SFN:
http://www.spaceflightnow.com/news/images/ni0903/28kscrev1.jpg
It's landing day for the crew of space shuttle Discovery
Having successfully carried out a construction mission that boosted the international space station to full power, space shuttle Discovery and its seven astronauts will head back to Earth today. Landing at the Kennedy Space Center in Florida is scheduled for 1:39 p.m. EDT.
---
Discovery's landing ground tracks
First Kennedy Space Center opportunity
http://www.spaceflightnow.com/shuttle/sts119/090327tracks/ksc201_long.gif
http://www.spaceflightnow.com/shuttle/sts119/090327tracks/ksc201_mid.gif
These maps show the track that space shuttle Discovery would follow into Florida's Kennedy Space Center for landing on Saturday. The landing opportunity begins with the deorbit burn braking maneuver at 12:33 p.m., leading to touchdown on Runway 15 at 1:39 p.m. EDT.
If weather or a problem prevents the shuttle from reentering the atmosphere on this orbit, Discovery would remain in space and target the next shot into Florida one orbit later.
http://www.spaceflightnow.com/shuttle/sts119/status.html
E si torna a casa..... con una stazione spaziale più bella in orbita :)
ciao
mannaggia la miseria ho sbagliato thread!
:doh:
Riporto qui i post pubblicati in precedenza...
1612 GMT (12:12 p.m. EDT)
WAVE OFF. Mission Control just told the Discovery crew that today's first landing opportunity has been cancelled due to concerns about the weather at Kennedy Space Center.
Gray clouds have moved over the landing strip, the winds are a bit higher than had been expected and there's a worry about conditions being too unpredictable to commit the shuttle into re-entry on this orbit.
The shuttle will make an additional orbit around the planet while meteorologists monitor the situation in Florida. There's one more option available to bring Discovery home this afternoon beginning with the deorbit burn braking maneuver at 2:08 p.m. and landing at 3:14 p.m. EDT.
If the weather remains "no go" in Florida, the astronauts would get a bonus day in space. The alternate landing sites in California and New Mexico are not called up for support today, so Discovery will remain in orbit and wait for better weather on Sunday afternoon.
Second landing opportunity
http://www.spaceflightnow.com/shuttle/sts119/090327tracks/ksc202_long.gif
http://www.spaceflightnow.com/shuttle/sts119/090327tracks/ksc202_mid.gif
1756 GMT (1:56 p.m. EDT)
GO FOR THE DEORBIT BURN! Weather conditions at the Kennedy Space Center have been deemed acceptable for a space shuttle landing this afternoon, allowing entry flight director Richard Jones in Mission Control to give final approval for Discovery to perform the deorbit burn at 2:08:14 p.m. EDT that will commit the spacecraft for the journey back to Earth.
Touchdown in Florida on Runway 15 is set for 3:13:31 p.m. EDT, completing a mission that installed the fourth and final solar power truss at the international space station.
1907 GMT (3:07 p.m. EDT)
Shuttle and crew are soaring over Central Florida, just six minutes from touchdown.
1904 GMT (3:04 p.m. EDT)
Now crossing Florida's western coastline. Discovery is 122,000 feet in altitude, 170 miles from the runway, traveling at 3,500 mph.
1855 GMT (2:55 p.m. EDT)
The space shuttle is approaching the coast of North America. The shuttle will fly over southern Mexico and the Yucatan Peninsula during the next few minutes.
1852 GMT (2:52 p.m. EDT)
Discovery is 238,000 feet in altitude, 2,200 miles from the runway, traveling at 15,300 mph.
1910 GMT (3:10 p.m. EDT)
The shuttle is in the Heading Alignment Cylinder, an imaginary circle to align with Runway 15. Commander Lee Archambault is piloting Discovery through a 260-degree left-overhead turn over the Atlantic to loop around for landing on the northwest to southeast runway.
1910 GMT (3:10 p.m. EDT)
The twin sonic booms have rumbled across the Kennedy Space Center area, announcing the shuttle's arrival.
1908 GMT (3:08 p.m. EDT)
Long-range tracking cameras have spotted Discovery.
1913 GMT (3:13 p.m. EDT)
TOUCHDOWN! Main gear touchdown. Pilot Tony Antonelli is unfurling the drag chute as commander Lee Archambault brings the nose gear to the surface of Runway 15.
1914 GMT (3:14 p.m. EDT)
WHEELS STOP. Shuttle Discovery and crew have safely returned from their orbital construction mission that installed the final section of the space station's truss structure, unfurled two giant solar wings that finished assembly of the outpost's electrical grid and boosted the international science laboratories to full power.
1932 GMT (3:32 p.m. EDT)
Discovery traveled 5.3 million miles during its 36th flight.
Here are the landing times in Eastern Daylight Time and Mission Elapsed Time:
Main Gear Touchdown
3:13:17 p.m. EDT
MET: 12 days, 19 hours, 29 minutes, 33 seconds
Nose Gear Touchdown
3:13:40 p.m. EDT
MET: 12 days, 19 hours, 29 minutes, 56 seconds
Wheels Stop
3:14:45 p.m. EDT
MET: 12 days, 19 hours, 31 minutes, 1 second
SFN:
Welcome home, Discovery!
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: March 28, 2009
The shuttle Discovery glided to a breezy touchdown at the Kennedy Space Center today, wrapping up a challenging three-spacewalk mission that left the international space station with a new set of solar arrays, a repaired water recycling system and a fresh crew member.
http://www.spaceflightnow.com/shuttle/sts119/090328fd14/landing.jpg
Credit: NASA-KSC
http://www.spaceflightnow.com/shuttle/sts119/090328fd14/index3.html
vBulletin® v3.6.4, Copyright ©2000-2025, Jelsoft Enterprises Ltd.