[Space] NASA - STS-121 - Discovery

[GioFX]

Originariamente inviato da gpc

Ho capito male o ha detto che riprovano domani?

Si, ad ogni "scrub" si riprova a 24 di distanza (per ovvi motivi) solo che per chiari motivi di modifica della durata del giorno viene anticipato il lancio ogni giorno di 10 minuti.

[m4arco]

pure qui a novara ci sono nuvole,
rinviate rinviate il lancio così forse potrò vedervi

[senzasoldi]

Allora è ufficiale? Hanno rimandato tutto a domani?

[gpc]

Originariamente inviato da GioFX

Si, ad ogni "scrub" si riprova a 24 di distanza (per ovvi motivi) solo che per chiari motivi di modifica della durata del giorno viene anticipato il lancio ogni giorno di 10 minuti.

Ecco, non riesco lo stesso a vederlo, sarò in macchina a quell'ora stramaledizione

[GioFX]

Tuttavia è difficile anche domani, perchè il tempo è previsto pressapoco come oggi, forse peggiore, e peggiore lo sarà lunedi, con il 70% di probabilità che siano violate i criteri di lancio.

A questo punto è molto facile aspettarsi un vero tentativo martedì prossimo, in concomitanza con la partita eheh...

[GioFX]

Originariamente inviato da senzasoldi

Allora è ufficiale? Hanno rimandato tutto a domani?

Si.

[gpc]

Originariamente inviato da GioFX

Tuttavia è difficile anche domani, perchè il tempo è previsto pressapoco come oggi, forse peggiore, e peggiore lo sarà lunedi, con il 70% di probabilità che siano violate i criteri di lancio.

A questo punto è molto facile aspettarsi un vero tentativo martedì prossimo, in concomitanza con la partita eheh...

Poco male
Ma adesso che fanno, risvuotano i serbatoi?

[GioFX]

Originariamente inviato da gpc

Poco male
Ma adesso che fanno, risvuotano i serbatoi?

ovviamente, il problema è che lo scrub non ci voleva perchè, sebbene sia certificata per 9 cicli (che corrispondono al caricamento o lo svuotamento), l'ET si è visto anche lo scorso anno che dopo due cicli si creano delle pericolose fratture negli strati interni della protezione termica e che sono i maggiori indiziati per il distacco nel volo.

[GioFX]

Da SpaceFlightNow.com:

Weather scrubs Discovery launch

BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: July 1, 2006

Launch of the shuttle Discovery on a long-awaited space station servicing and resupply mission was called off today because of cloud cover and the threat of lightning over the Kennedy Space Center.


Clouds prompted Discovery's launch scrub. Credit: Stephen Clark/Spaceflight Now

Commander Steve Lindsey and his six crewmates had hoped to blast off at 3:49 p.m. to kick off only the second post-Columbia shuttle mission - NASA's first shuttle flight in nearly a year - but cloudy weather forced NASA Launch Director Mike Leinbach to extend a final hold in the countdown in hopes of an improvement.

It was not to be.

"NTD, launch director, (on channel) 212. Sir, we've been fighting the weather for quite some time," Leinbach told NASA test director Jeff Spaulding. "It doesn't look like we're going get a go. ... I Just don't feel good about the launch weather."

Leinback then called flight director Steve Stich in mission control, Houston.

"Launch Director, this is Houston Flight," Stich replied. "Mike I concur. This is a dynamic day and I think we're just playing it too close here. We've got (electrically charged) anvils within 20 miles and over the launch trajectory, it's not a good day to launch."

"Copy and concur," Leinbach replied. "Discovery, Launch Director. Well Steve, sorry to break your string, but we're not going to make it today. So appreciate your support, both the crew and the whole launch team and the team worldwide trying to get this vehicle off the ground today. But it's not a good day to launch the shuttle, so we're going to try again tomorrow."

"We copy all and concur," Lindsey called from Discovery. "It wasn't our time today, we'll launch when we're ready and hopefully, tomorrow will look better."

It was a frustrating disappointment to Lindsey and his crewmates, who have been training for this flight for nearly two years. But cloudy weather is normal this time of year in central Florida and the scrub, while disappointing, was not a major surprise.


The launch was scrubbed during the T-minus 9 minute mark in the countdown. Credit: Stephen Clark/Spaceflight Now

Lindsey, pilot Mark Kelly, flight engineer Lisa Nowak, spacewalkers Piers Sellers and Mike Fossum, Stephanie Wilson and European Space Agency astronaut Thomas Reiter will spend the day at the Florida spaceport and turn in later this afternoon to await an early wakeup call Sunday.

The launch window Sunday opens at 3:21 p.m. and closes at 3:31 p.m. The preferred in-plane launch time is 3:26 p.m. The launch window Monday opens around 2:55 p.m. for a launch attempt around 3:00 p.m. The forecast for Sunday calls for a 60 percent chance of unacceptable weather and 70 percent no-go Monday.

Discovery has enough on-board liquid oxygen and hydrogen to power the ship's electricity producing fuel cells for four launch tries over five days. Leinbach said earlier the preferred strategy would be to make launch tries Saturday and Sunday, stand down on Monday to give the team a break, and then to make two more attempts Tuesday and Wednesday. After that, engineers will have to stand down for 48 hours to top off Discovery's on-board hydrogen supply.

The goal of the mission is to deliver 5,100 pounds of equipment and supplies to the international space station and to stage two and possibly three spacewalks, including one to repair a stalled equipment transporter that is vital to continued assembly of the outpost.

Just as important to the European Space Agency, Discovery is ferrying Mir-veteran Reiter to the lab complex to boost crew size back to three for the first time since downsizing in the wake of the Columbia disaster.

Reiter is on board Discovery as part of a commercial contract between ESA and the Russian space agency, Roscosmos. He is scheduled to return to Earth in December with the crew of a visiting space shuttle.

Discovery's launch window extends to July 19. If the shuttle is not off the ground by then, the flight will slip to late August and a launch currently targeted for that window would slip into October at the earliest.

[GioFX]

gianpaolo ho sbagliato, in questo lancio ogni giorno si anticipa di 20 minuti circa, per la correzione dovuta al cambiamento del rendevouz con la ISS.

[gpc]

Originariamente inviato da GioFX

gianpaolo ho sbagliato, in questo lancio ogni giorno si anticipa di 20 minuti circa, per la correzione dovuta al cambiamento del rendevouz con la ISS.

Sì vabbè, fa niente, tanto è ancora peggio: dovrei partire troppo presto da FE per essere a FO per l'ora del lancio di domani, sarò sicuramente in macchina... amen, a 'sto punto spero che lo rimandino ancora :bastard inside:

[GioFX]

che devi andare dalla morosa a fare... la scienza è più importante e il resto può attendere...

[gpc]

Originariamente inviato da GioFX

che devi andare dalla morosa a fare... la scienza è più importante e il resto può attendere...

Macchè morosa, devo tornare a Forlì a lavorare
Se fosse la morosa l'avrei già messa in attesa... infatti anche questa sera sono uscito dopo

[GioFX]

Originariamente inviato da gpc

Macchè morosa, devo tornare a Forlì a lavorare

hai ragione... avevo letto che andavi da FO a FE...

Se fosse la morosa l'avrei già messa in attesa... infatti anche questa sera sono uscito dopo

[GioFX]

Si ricomincia: T-6 ore

[razziadacqua]

Ma porca di quella...!!!!!!!

Più deficente io ad attrezzarmi come un cecchino per beccare sto cacchio di Shuttle!!..evo ammettere che qualche colpo gliel'ho mandato

[razziadacqua]

Dimenticavo.

Mi domandavo ora,adesso come adesso,con i nuovi parametri di lancio,sarà ancora possibile osservarlo dall italia?
E sopratutto,come e dove saperlo?
Visto che l info a riguardo che avevate postato non sono riuscito a trovarla nel sito originale manco a morir di un colpo...

[GioFX]

Originariamente inviato da razziadacqua

Dimenticavo.

Mi domandavo ora,adesso come adesso,con i nuovi parametri di lancio,sarà ancora possibile osservarlo dall italia?
E sopratutto,come e dove saperlo?
Visto che l info a riguardo che avevate postato non sono riuscito a trovarla nel sito originale manco a morir di un colpo...

Non ho capito perchè i nuovi criteri post-Columbia dovrebbero impedire la visibilità dell'ISS+shuttle.

[GioFX]

1231 GMT (8:31 a.m. EDT)

T-minus 3 hours and holding. The count has just gone into a planned 3-hour built-in hold.

Weather conditions are currently "no go" due to showers coming ashore from the Atlantic Ocean, violating the anvil and lightning rules. "And so it begins," NASA spokesman George Diller says. The outlook for the 3:26 p.m. EDT launch time calls for a 70 percent chance of "no go" weather.

1229 GMT (8:29 a.m. EDT)

The Orbiter Closeout Crew and the Final Inspection Team have been cleared for travels to pad 39B to begin their launch morning jobs. The closeout crew will be readying the Discovery's cockpit for astronaut boarding later today; the inspection team will be examining the exterior of the shuttle vehicle for ice now that fueling is finished.

1224 GMT (8:24 a.m. EDT)

Liquid oxygen has gone into stable replenishment, joining liquid hydrogen that entered this mode a little while ago. So filling of Discovery's external has been completed.

1205 GMT (8:05 a.m. EDT)

The liquid hydrogen fuel tank has been filled up and the liquid oxygen is nearing completion of the fast-fill mode for today's launch opportunity of Discovery.

The launch weather team reports an area of showers is approaching the Cape and rain is expected at pad 39B in about 45 minutes.

1130 GMT (7:30 a.m. EDT)

Good morning from a cloudy Kennedy Space Center where fueling of space shuttle Discovery's external tank is still going smoothly. The three-hour tank filling process is about two-thirds complete now, and no troubles have been reported thus far.

The countdown is marching toward a launch at 3:26 p.m. EDT today. However, the weather forecast is not good. Meteorologists are saying there is a 70 percent chance that thunderstorms and anvil clouds will break the launch rules this afternoon.

The outlook is 60 percent "no go" for Monday and 40 percent "no go" on Tuesday.

If the weather forces another scrub today, the Mission Management Team would meet to decide whether to make a rare third consecutive launch attempt or give everyone a day to rest and try again Tuesday.

If Discovery is not off the ground by Wednesday, the onboard fuel cell hydrogen reactant supply used to generate electricity in space would need to be replenished, requiring a further delay.

1009 GMT (6:09 a.m. EDT)

Both liquid hydrogen and liquid oxygen fueling operations have progressed through the chilldown thermal conditioning and into the slow-fill mode. Once each tank is loaded slightly, the pumping rate increases to the fast-fill mode.

And the engine cutoff, or ECO, sensors in both tanks are working normally this morning.

We'll resume our live updates from Kennedy Space Center around 7:30 a.m.

0930 GMT (5:30 a.m. EDT)

Re-fueling of space shuttle Discovery with the half-million gallons of cryogenic rocket propellants began at 5:28 a.m. EDT this morning. It will take three hours to fill the ship's external fuel tank.

The weather forecast for today's planned 3:26 p.m. EDT launch indicates only a 30 percent chance of acceptable conditions. Forecasters are giving the bleak outlook due to the expected development of thunderstorms across Florida during the day.

No technical problems are being reported in the countdown and activities are proceeding for this second attempt to launch Discovery on mission STS-121.

[GioFX]

SUNDAY, JULY 2, 2006
1329 GMT (9:29 a.m. EDT)

The field mills, which comprise a network of detectors around the Cape to measure the electrical charge in the air, is measuring "no go" conditions now.

1325 GMT (9:25 a.m. EDT)

Thunder now rumbling across the Kennedy Space Center -- and not of the launch kind. A storm that has brought heavy rain across Brevard County has moved northward to KSC.

1311 GMT (9:11 a.m. EDT)

And now the anvil cloud rule is "no go" again, too.

1300 GMT (9:00 a.m. EDT)

Latest check of the weather shows the lightning, cumulus cloud and thick cloud rules are being violated at this time.