[Space] NASA - STS-121 - Discovery

[razziadacqua]

Come pensavo Heavens Above è stato molto utile

Pass Details
Date:
Saturday, 01 July, 2006
Satellite:
ISS
Observer's Location:
Pesaro ( 43.9000°N, 12.9170°E)Local Time:
Central European Summer Time (GMT + 2:00)
Orbit:
335 x 349 km, 51.6° (Epoch 30 Jun)Sun altitude at time of
maximum pass altitude:
-9.9°
EventTime
Altitude
Azimuth
Distance (km)
Rises above horizon
21:55:32
0°304° (NW )2,124
Reaches 10° altitude21:57:35
10°312° (NW )1,290
Maximum altitude
22:00:22
41°26° (NNE)513
Enters shadow
22:02:56
11°97° (E )1,229




Penso che se la ISS manco farlo a posta quella sera sarà visibile e passerà con quella traiettoria,lo Shuttle non sarà tanto distante..cmq 10° di Alt sono pochini bene...sarà molto bassa la cosa.

Se vi interessa avere questo genere di info vi consiglio di registrarvi al sito,inserire coordinate precise per la vostra zona.
Le quantità di info dispponibili sono molte realtive a tutti i tipi di Flare(iridium,ISS,HSS...) dove fra l altro potete avere cartina del cielo e traiettoria.

[gpc]

Originariamente inviato da RiccardoS

e per Rovigo quando passa?

ach... sembra che la traiettoria sia da Nord a Sud... io proprio quel sabato sera dovrei essere al mare a vedere le stelle... ma mi sa che dalla costa adriatica mica riesco a vederlo...

A Rovigo non ci passa perchè hanno paura di come guidano i rovigotti

[GioFX]

Bene, ci siamo:

T-6 hrs

E' ripreso il countdown, rimane un ultimo hold a T-9 mins.

[GioFX]

Countdown Timeline

http://www.spaceflightnow.com/shuttl...countdown.html

[gpc]

C'è su nasatv? Mi passi il link per favore?

[gpc]

Trovato, era in prima pagina
Ma a che ora italiana è il lancio?

[GioFX]

0300 GMT (11:00 p.m. EDT Fri.)

The cocoon-like rotating service structure peeled away from space shuttle Discovery this evening, revealing the spaceplane on launch pad 39B as technicians made final preparations to begin pumping a half-million gallons of supercold rocket fuel into the external tank just before 6 a.m. Liftoff is set for 3:48:41 p.m. EDT.

Discovery's astronauts are asleep right now. They'll be awakened at 5:15 a.m. to begin launch morning activities. Departure from the crew quarters for the ride to the launch pad is scheduled for 11:48 a.m.

We will provide live play-by-play reports on the countdown starting at about 5:30 a.m. in advance of fueling operations commencing.

.......

Riepilogo degli eventi più recenti:

GOX vent arm has been extended




RSS Weather Protection System panel has been retracted

[GioFX]

Originariamente inviato da gpc

Trovato, era in prima pagina
Ma a che ora italiana è il lancio?

21:49

[GioFX]

Da SpaceFlightNow.com:

Discovery on track for launch as options are outlined

BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: June 30, 2006

The shuttle Discovery's countdown is on track today for a launch attempt Saturday at 3:49 p.m., weather permitting. Forecasters continue to predict a 60 percent chance of unacceptable weather Saturday, Sunday and Monday due to electrically charged anvil clouds within 23 miles of the launch area and a possibility of showers.

Thunderstorms Thursday afternoon delayed work to load Discovery's internal tanks with liquid oxygen and hydrogen for the ship's electricity producing fuel cells. But the launch team had eight hours of built-in hold time Thursday to make up for any delays and by this morning, the countdown was back on track.

Based on the actual load, flight controllers now believe Discovery may have enough power generation capability to permit a one-day mission extension - and a third spacewalk to test wing leading edge repair techniques - even if launch is delayed to July 4. Based on earlier predictions, July 3 appeared to be the cutoff for a mission extension, barring extensive crew conservation procedures. In any case, no decision will be made on a possible mission extension until well into Discovery's mission.

NASA Test Director Jeff Spaulding said today the launch strategy calls for making back-to-back attemps Saturday and Sunday, if necessary, before standing down a day to give the team a break. Two more attempts could be made Tuesday and Wednesday before a two-day stand down to top off the internal hydrogen and oxygen tanks. Discovery's launch window closes July 19.

Spaulding said the possibility of making three launch attempts in a row Saturday, Sunday and Monday has not been ruled out. But if NASA went down that road and didn't make it, launch would be delayed another four days to refill launch pad fuel tanks and to top off the fuel cell system.

Here is the remainder of Discovery's countdown in text format. Note: NASA times the countdown to the opening of the shuttle's 10-minute launch window, not the actual launch time, and rounds down to the nearest minute. The latest estimate shows the launch window opens at 3:43:38 p.m. All events in the countdown prior to the release of a final hold at the T-minus nine-minute mark are based on the window open time of 3:43 p.m. The countdown will resume at the T-minus nine-minute mark based on the actual launch time, which is roughly the moment Earth's rotation carries the pad into the plane of the space station's orbit. As of today, the estimate is 3:48:38 p.m.


HH:MM......EVENT

06/30/06
01:10 PM...Communications system activation
01:40 PM...Crew module voice checks
02:50 PM...Flight crew equipment late stow
06:00 PM...Rotating service structure to park position
07:50 PM...Ascent switch list configuration
10:53 PM...Resume countdowns
10:53 PM...Terminate pad tours

07/01/06
12:03 AM...Fuel cell activation
12:53 AM...Pad clear of non-essential personnel
12:53 AM...Mission control in launch comm configuration
01:23 AM...Solid rocket booster joint heater activation
03:08 AM...Final fueling preps; launch area clear
03:53 AM...Begin 2-hour built-in hold
04:03 AM...Safe-and-arm PIC test
04:28 AM...External tank ready for fueling
04:43 AM...Mission management team tanking meeting
05:00 AM...NASA television coverage begins
05:53 AM...Resume countdown
05:53 AM...Liquid oxygen (LO2), hydrogen (LH2) transfer line chilldown
06:03 AM...Main propulsion system chill down
06:03 AM...LH2 slow fill
06:33 AM...LO2 slow fill
06:38 AM...Hydrogen engine cutoff sensors go wet
06:43 AM...LO2 fast fill
06:53 AM...LH2 fast fill
08:08 AM...LH2 topping
08:48 AM...LH2 replenish
08:53 AM...LO2 replenish
08:53 AM...Begin 3-hour built-in hold
08:53 AM...Closeout crew to white room
08:58 AM...External tank in stable replenish mode
09:08 AM...Astronaut support personnel comm checks
09:38 AM...Pre-ingress switch reconfig
10:10 AM...Crew photo opportunity
11:19 AM...Crew weather briefing
11:19 AM...Astronauts begin donning pressure suits
11:53 AM...Resume countdown
11:59 AM...Crew departs O&C building
12:29 PM...Crew begins strapping in
01:18 PM...Astronaut communications checks
01:44 PM...Hatch closure
02:18 PM...White room closeout
02:33 PM...Begin 10-minute built-in hold (T-minus 20 minutes)
02:35 PM...NASA test director countdown briefing
02:43 PM...Resume countdown (T-minus 20 minutes)
02:44 PM...Backup flight computer (BFS) loads OPS 1 software
02:48 PM...Kennedy Space Center area clear to launch
02:54 PM...Begin final built-in hold (T-minus nine minutes)
02:59 PM...RTLS runway verification
03:04 PM...NASA test director launch status verification

HH:MM:SS

03:39:38 PM...Resume countdown (T-minus nine minutes)
03:41:08 PM...Orbiter access arm retraction
03:43:38 PM...Launch window opens
03:43:38 PM...Hydraulic power system (APU) start
03:43:43 PM...Terminate LO2 replenish
03:44:38 PM...Purge sequence 4 hydraulic system test
03:44:38 PM...Inertial measurement units (IMUs) to inertial
03:44:43 PM...Aerosurface profile (steering test)
03:45:08 PM...Main engine steering test
03:45:43 PM...LO2 tank pressurization
03:46:03 PM...Fuel cells to internal reactants
03:46:08 PM...Crew lears caution-and-warning memory
03:46:38 PM...Crew closes visors
03:46:41 PM...LH2 tank pressurization
03:47:48 PM...Soplid rocket booster joint heater deactivation
03:48:07 PM...Shuttle flight computers take control of countdown
03:48:17 PM...Booster steering test
03:48:31 PM...Main engine start (T-6.6 seconds)
03:48:38 PM...Booster ignition (LAUNCH)
03:53:38 PM...Window closes

[gpc]

Originariamente inviato da GioFX

21:49

Allora posso chiudere Media player

[GioFX]

The mission management team has given a "go" to begin fueling shuttle Discovery this morning as planned.

Managers convened their "pre-tanking meeting" at Kennedy Space Center around 4:45 a.m. to review the progress of work at launch pad 39B and the weather before giving engineers approval to begin fueling Discovery. The loading of the shuttle's external fuel tank will take nearly three hours to complete.

There are no significant technical issues being worked by the launch team and the weather forecast has improved a bit. Meteorologists now expect a 60 percent chance of acceptable conditions at launch time today.

[GioFX]

0601 GMT (6:01 a.m. EDT)

The chilldown thermal conditioning of the propellant lines and Discovery's internal plumbing is underway. The chilldown preps the systems for the shock from the super-cold cryogenic liquid oxygen and liquid hydrogen fuels that will be pumped into the external tank this morning.

0959 GMT (5:59 a.m. EDT)

Fueling operations have begun! The launch team is beginning the steps in the procedures to start fueling.

0953 GMT (5:53 a.m. EDT)

T-minus 6 hours and counting. The countdown has resumed from the two-hour built-in hold.

0946 GMT (5:46 a.m. EDT)

The start of fueling is expected to begin in the next 15 minutes. Countdown clocks are holding as scheduled at the T-minus 6 hour mark. The count will resume at 5:53 a.m. EDT and head to the T-minus 3 hour mark where a three-hour hold is planned.

[gpc]

Originariamente inviato da GioFX

0953 GMT (5:53 a.m. EDT)

T-minus 6 hours and counting. The countdown has resumed from the two-hour built-in hold.

Non mi torna mica l'orario delle nove di sera con questo T-minus 6 hours alle 9.53 GMT...

[GioFX]

Originariamente inviato da gpc

Non mi torna mica l'orario delle nove di sera con questo T-minus 6 hours alle 9.53 GMT...

L'ora del countdown non coincide con quella reale. Il countdown comincia a T-43 (nella realtà a T-70) ore, appena dopo il Call To Stations (che devono dare il "Go/No Go"), e termia a T-0 (con il liftoff).

All'interno del countdown ufficiale ci sono poi 7 "built-in-holds", cioè periodi di sospensione tecnica del countdown... inoltre ovviamente ci possono essere delle sospensioni non previste nel caso sia necessario tempo per valutare ed eventualmente sistemare eventuali problemi (troubleshooting contingency time).

Per approfondire consiglio questa pagina della NASA:

http://www.nasa.gov/mission_pages/sh...ntdown101.html

[GioFX]

1223 GMT (8:23 a.m. EDT)

The liquid hydrogen system has entered into replenish mode to keep Discovery's tank topped off through the rest of the count. Liquid oxygen tank filling has another 20 or minutes left to go.

1217 GMT (8:17 a.m. EDT)

Filling of the liquid hydrogen tank has reached the 98 percent mark. Topping of the tank is beginning. The liquid oxygen loading is continuing.

1200 GMT (8:00 a.m. EDT)

Good morning from sunny Kennedy Space Center where we are beginning our complete live reports throughout the mission of space shuttle Discovery.

Fueling is entering the final hour of the three-hour process. No leaks or concentrations of liquid oxygen or liquid hydrogen have been detected in the shuttle's aft compartment. And the engine cutoff sensors, which were a source of trouble during the last mission, are functioning fine today.

Officials continue to discuss the heater problem on one of Discovery's vernier engine thrusters. The level of significance for this issue is unclear right now, if the problem cannot be resolved during the count.

1049 GMT (6:49 a.m. EDT)

There are actually two tanks inside the shuttle's orange bullet-shaped tank. The liquid oxygen tank fills the top third of the external tank. It will be filled with 143,000 gallons of liquid oxygen chilled to minus 298 degrees Fahrenheit (minus 183 degrees Celsius). The liquid hydrogen tank is contained in the bottom two-thirds of the external tank. It holds 385,000 gallons of liquid hydrogen chilled to minus 423 degrees Fahrenheit (minus 253 degrees Celsius).

The cryogenics are pumped from storage spheres at the pad, through feed lines to the mobile launcher platform, into Discovery's aft compartment and finally into the external fuel tank.

Fueling operations are progessing smoothly this morning. The liquid hydrogen tank is about a quarter full and the liquid oxygen tank is 20 percent full.

The loading began in slow-fill mode for each tank. That process continued until the tanks were five percent full, then the fast-fill took over.

1047 GMT (6:47 a.m. EDT)

The engine cutoff sensors in the external tank are working normally. The hydrogen sensors were replaced in the Vehicle Assembly Building.

Meanwhile, technicians are examining a vernier engine heater issue, but that's not something of major concern, a NASA spokesman says.

[GioFX]

1253 GMT (8:53 a.m. EDT)

T-minus 3 hours and holding. Countdown clocks have entered a planned three-hour built-in hold in advance of today's launch of space shuttle Discovery. This is a standard hold in every shuttle countdown. However, NASA has extended it from the usual two hours to three hours to give the final inspection team more time to complete their ice and debris checks of the shuttle after fueling. The team will be sent to pad 39B to begin the inspections once fueling of Discovery is completed.

Also awaiting dispatch to the pad is the orbiter closeout crew, which is the team that will assist the astronauts during boarding.

[GioFX]

1254 GMT (8:54 a.m. EDT)

Filling of Discovery's external fuel tank was called complete at 8:53 a.m. EDT. The tank has been pumped full with 528,000 gallons of supercold liquid oxygen and liquid hydrogen.

But given the cryogenic nature of the oxidizer and propellant, the supplies naturally boil away. So the tanks are continuously topped off until the final minutes of the countdown in a procedure called "stable replenishment."

With the hazardous tanking operation completed, the Orbiter Closeout Crew and Final Inspection Team will be heading to the pad to perform their jobs. The closeout crew will ready Discovery's crew module for the astronauts' ingress in a couple of hours; and the inspection team will give the entire vehicle a check for any ice formation following fueling.

[GioFX]

1320 GMT (9:20 a.m. EDT)

The Final Inspection Team is beginning its two-hour observations of the shuttle vehicle.

1317 GMT (9:17 a.m. EDT)

The Orbiter Closeout Crew has arrived in the White Room on the end of the Orbiter Access Arm catwalk that runs from the launch pad tower to Discovery's crew module. They will make final preparations to ready Discovery for the astronaut's arrival about three hours from now.

[senzasoldi]

Scusate ho letto che c'è una webcam ma come faccio a collegarmi?

[GioFX]

1453 GMT (10:53 a.m. EDT)

The countdown is still holding at the T-minus 3 hour mark. Clocks are slated to resume ticking in 60 minutes.

The analysis and debate about the faulty heater on one of Discovery's vernier steering thrusters continues. That heater is not working, which makes the maneuvering jet considered failed for the mission. Although there are other thrusters that can compensate for the loss of the L5L jet, managers must decide if they want to launch knowing some of the redundancy is gone.

1425 GMT (10:25 a.m. EDT)

The inspection team is responsible for checking Discovery and the launch pad one last time prior to liftoff. The team is comprised of engineers and safety officials from NASA, United Space Alliance and tank-builder Lockheed Martin. At the conclusion of their two-hour tour-of-duty, the team will have walked up and down the entire fixed service structure and mobile launcher platform.

The team is on the lookout for any abnormal ice or frost build-up on the vehicle and integrity of the external tank foam insulation.

The team uses a portable infrared scanner that gathers temperature measurements on the surface area of the shuttle and can spot leaks. The scanner will be used to obtain temperature data on the external tank, solid rocket boosters, space shuttle orbiter, main engines and launch pad structures. The scanner can also spot leaks of the cryogenic propellants, and due to its ability to detect distinct temperature differences, can spot any dangerous hydrogen fuel that is burning. The team member also is responsible for photo documentation.

The team wears the highly visible day-glow orange coveralls that are anti-static and flame resistant. Each member also has a self-contained emergency breathing unit that holds about 10 minutes of air.

No significant problems or concerns have been reported by the inspection team so far.

1412 GMT (10:12 a.m. EDT)

Dressed in red shirts featuring the STS-121 mission emblem, Discovery's seven astronauts are gathered around the dining room table for a pre-launch snack. They were awakened at 5:15 a.m. EDT to begin the launch day activities at Kennedy Space Center.

After a bite to eat, commander Steve Lindsey, pilot Mark Kelly and flight engineer Lisa Nowak will receive a briefing on the weather forecast for KSC and abort landing sites in California, New Mexico, Spain and France. Then they will join their crewmates in the suit-up to don the launch and entry spacesuits in preparation for heading to pad 39B.

1401 GMT (10:01 a.m. EDT)

NASA spokesman Bruce Buckingham says mission managers have "high hopes" the vernier thruster problem on Discovery's left-hand orbital maneuvering system pod can fly as-is and the situation be managed in space without impact to the flight. A heater on the L5L thruster failed just after being activited this morning.