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VEHICLE: Endeavour/OV-105
LAUNCH DATE: May 30, 2002
LAUNCH PERIOD: 7:44 p.m. EDT
KSC LANDING DATE: June 11, 2002
MISSION DURATION: 11 days
CREW: Cockrell, Lockhart, Chang-Diaz, Perrin; (ISS up) Korzun, Whitson,
Treschev; (ISS down) Onufrienko, Bursch, Walz
ORBITAL INSERTION ALTITUDE and INCLINATION: 122 nautical miles/51.6
degrees

SHUTTLE & PAYLOAD PROCESSING STATUS REPORT

04/22/02 04/25/02 04/29/02 05/02/02
05/06/02 05/09/02 05/13/02 05/20/02
05/23/02 05/28/02 05/29/02
Weather Forecast
05/29/02
Launch Time/Update
05/29/02
Countdown Milestones
05/30/02
Weather Forecast
05/30/02 05/31/02
05/31/02 05/31/02
Weather Forecast
06/01/02 06/02/02
06/03/02 06/03/02
Weather Forecast
06/04/02 06/04/02
Weather Forecast
06/04/02
Launch Time/Update
06/05/02
Flight Update
06/06/02
Flight Update
06/13/02
Flight Update
06/14/02
Landing Schedule
06/14/02
Weather Forecast
06/19/02 06/20/02

T-3 seconds as the main engines are coming up to full power.

T+3 seconds as Endeavour leaps off of the launch pad.  Endeavour is the newest and lightest shuttle.  The payload was relatively light and the shuttle seemed to come off the pad quicker and climb out faster than previous launches.

T+13 at the completion of the roll program Endeavour picks up speed.

T+1:59 Endeavour's boosters nearing burnout and separation.

Thursday, June 20, 2002 (4:30 p.m.)

At Edwards Air Force Base (EAFB), Calif., preparation for Shuttle Endeavour's cross-country ferry flight proceeds on schedule. Workers will lift Endeavour into the Mate-Demate Device at Dryden Flight Research Center. The orbiter will be mated to NASA's Shuttle Carrier Aircraft, a modified Boeing 747, and depart from California enroute to Kennedy Space Center.
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Wednesday, June 19, 2002 (4:30 p.m.)

After two consecutive days of landing attempts at the Kennedy Space Center, Commander Ken Cockrell guided Shuttle Endeavour to a smooth landing on southwest-northeast runway 22 at Edwards Air Force Base in California, marking the completion of a successful mission to the International Space Station.

After logging 5.8 million miles during 217 orbits, Endeavour's main landing gear touched down at about 1:58 p.m. The crew members exited the Orbiter to the Crew Transfer Vehicle about one hour after landing and the four STS-111 crew members performed the traditional walk-around inspection. The astronauts are scheduled to return to Houston to be reunited with their families at the crew return ceremony on Friday.

Expedition Four crew members Dan Bursch and Carl Walz surpassed the previous U.S. spaceflight duration record held by Shannon Lucid since 1996, with a record-setting 196 days in space. Also, Walz holds the record for the most cumulative days in space with 231 days.

Later this afternoon, Endeavour will be towed to the mate-demate device at NASA's Dryden Flight Research Center in preparation to be mated to the modified 747 Shuttle Carrier Aircraft (SCA) for its ferry flight to Kennedy Space Center scheduled to leave on Monday, June 24. The SCA will land at the Shuttle Landing Facility at KSC and Endeavour will be towed to the Orbiter Processing Facility to begin deservicing and processing for its next mission, the STS-113 mission to the ISS in October.

Unofficial Shuttle Landing Timetable:

Main Gear 1:57:41 EDT 13 days, 20 hours, 34 minutes, 52 seconds MET

Nose Gear 1:57:53 EDT 13 days, 20 hours, 35 minutes, 04 seconds MET

Wheel Stop 1:58:45 EDT 13 days, 20 hours, 35 minutes, 56 seconds MET
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Friday, June 14, 2002  (10:00 am)

Frontal system will remain stationary across northern Florida Monday and Tuesday with light surface winds forecast at KSC both days. The sea breeze will be pushing across the SLF near landing time both days. Showers are possible with the sea breeze on Tuesday since the models indicate a slight increase in moisture across Florida that day.

No weather constraints forecast at Edwards Monday or Tuesday although gusty winds are expected for the 2nd opportunity on Monday.

END OF MISSION LANDING WEATHER FORECASTS FOR 6/17/02

Kennedy Space Center Shuttle Landing Facility

Valid 12:59 PM EDT / 11:59 AM CDT (1st opportunity)

Clouds: Scattered 4,000 
Scattered 25,000
Visibility: 7 miles
Winds: 270 degrees 3 - 5 knots 1st opportunity
140 degrees 7 - 12 knots 2nd opportunity
Runways & violations: RWY 33/15 None
Temperature: 86
Dew Point: 73
Relative humidity: 65%
Precipitation: None expected

Edwards Air Force Base
Valid 2:30 PM EDT / 1:30 PM CDT (1st opportunity)
Clouds: Clear
Visibility: 7 miles
Winds: 230 degrees 7 - 10 knots 1st opportunity
260 degrees 15 - 25 knots 2nd opportunity
Runways & violations: RWY 22/04 None
Precipitation: None expected

WAVE-OFF LANDING WEATHER FORECASTS FOR 6/18/02

Kennedy Space Center Shuttle Landing Facility

Valid 11:56 AM EDT / 10:56 AM CDT(1st opportunity)
Clouds: Scattered 4,000
Scattered 25,000
Visibility: 7 miles
Winds: 100 degrees 06 - 9 knots
Runways & violations: RWY 33/15
Precipitation: Chance Showers within 30 NM 2nd opportunity

Edwards Air Force Base

Valid 3:02 PM EDT / 2:02 PM CDT(1st opportunity)
Clouds: Few 25,000
Visibility: 7 miles
Winds: 210 degrees 5 - 8 knots 1st opportunity
230 degrees 8 - 15 knots 2nd opportunity
Runways & violations: RWY 22/04
Precipitation: None expected
______________________________________________

Friday, June 14, 2002 (3:47 p.m.)

ENDEAVOUR SCHEDULED TO LAND AT KSC JUNE 17

The orbiter Endeavour is scheduled to land at Kennedy Space Center (KSC) Monday, June 17, at 1:00 p.m. EDT completing the nearly 12-day STS-111 mission to deliver and install the Mobile Base System (MBS) and transport the Expedition Five crew to the International Space Station. Endeavour launched from KSC on June 5, 2002.

Landing at KSC's Shuttle Landing Facility (SLF) is slated to occur on orbit 185 at mission elapsed time 11 days, 19 hours, 38 minutes. The deorbit burn will occur at about 11:56 a.m. EDT. The two KSC landing opportunities on June 17 are at 1:00 p.m. EDT and at 2:36 p.m. EDT. The deorbit burn for the second landing opportunity would take place at 1:33 p.m. EDT. No landing opportunities are planned for the back-up landing location at Edwards Air Force Base (EAFB), Calif., on Monday.

If managers must keep Endeavour in orbit an additional day, two landing opportunities are available at KSC on Tuesday, June 18, at 11:56 a.m. EDT and at 1:32 p.m. EDT. Two landing opportunities also exist at EAFB on Tuesday at 3:02 p.m. EDT and at 4:38 p.m. EDT. 

If landing occurs as scheduled, it will be the 60th landing at KSC in the history of the Shuttle program. Following landing, Endeavour will be towed to the Orbiter Processing Facility for post-mission servicing and preparation for the STS-113 mission in October.

About an hour after touchdown, the crews will be taken to crew quarters in the O&C Building, meet with their families and undergo physical examinations. A post-mission press conference with select members of the STS-111 crew is scheduled to occur at the KSC News Center about six hours after touchdown. A ceremony commemorating the STS-111 and Expedition Four crews' return from space will be held at Ellington Field in Houston, Texas, on June 19.

If Endeavour lands at Edwards, an augmented KSC convoy team will be on-site to safe the vehicle, disembark the crew and move the orbiter to the Mate/Demate Device. The turnaround team will be deployed to Edwards by charter aircraft on landing day.
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Thursday, June 13, 2002 (12:30 p.m.)

Everything continues to perform well aboard Endeavour during docked operations at the International Space Station. The third spacewalk of the STS-111 mission is scheduled for today, where Astronauts Philippe Perrin and Franklin Chang-D�az will replace the Space Shuttle Remote Manipulator System wrist roll joint . Undocking is scheduled for Saturday with the first planned landing opportunity on Monday, June 17 at 1:00 p.m. The landing time has changed due to cross-range limitations on an earlier landing opportunity.
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Thursday, June 6, 2002 (10:30 a.m.)

Shuttle Endeavour lifted off yesterday at 5:22 p.m. EDT on the STS-111 mission to the International Space Station. The seven-member crew is preparing to dock to the Station Friday, June 7, at 12:18 p.m. EDT. Initial data indicates the Solid Rocket Boosters performed nominally and will return by retrieval ships Liberty Star and Freedom Star to Hangar AF at Cape Canaveral tomorrow.

At the pad, early inspections show that the pad sustained no unusual damage from yesterday's launch. Clean up work will begin today in preparation for the next mission scheduled at Pad A, STS-112 in August.
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Wednesday, June 5, 2002 (7:30 p.m.)

Following a flawless countdown, Shuttle Endeavour lifted off at 5:22:49 p.m. EDT on the STS-111 mission to the International Space Station. Although thick clouds in the vicinity were a concern until launch time, the weather cooperated to provide a magnificent beginning to the 12-day mission. One of the objectives is to deliver the Expedition Five crew and return the Expedition Four crew after a record stay of 193 days at the Station. Quick-look data indicate that Shuttle engines performed normally during the eight minutes of powered flight.

Solid Rocket Booster retrieval ships Liberty Star and Freedom Star are poised in the recovery area some 140 miles east of Cape Canaveral assessing the status of the two spent booster casings. The ships are scheduled to return to Hangar AF at Cape Canaveral on Friday, June 7. ______________________________________________

Tuesday, June 4, 2002, (5:00 p.m. EDT)

Following the successful replacement and retest of a faulty gaseous nitrogen regulator valve on the left Orbital Maneuvering System pod of the Shuttle Endeavour, NASA mission managers have set the launch of Mission STS-111 for Wednesday, June 5. The preferred launch time is 5:22:48 p.m. EDT.

The planar launch window on Wednesday extends from 5:17:49 - 5:27:47 p.m. EDT with the preferred launch time reflecting a flight day three rendezvous and docking with the International Space Station. The launch window times will be updated to coincide with the latest orbital position of the Space Station and will be announced at the T-9 minute hold. 

STS-111 is a scheduled 12-day mission with a planned KSC landing at about 11:49 a.m. EDT on June 17. This mission marks the fourteenth Shuttle flight to the International Space Station and the third Shuttle mission this year. Mission STS-111 is the 18th flight of the orbiter Endeavour and the 110th flight overall in NASA's Space Shuttle program.

On mission STS-111, astronauts will deliver the Leonardo Multi-Purpose Logistics Module, the Mobile Base System (MBS), and the Expedition Five crew to the International Space Station. During the seven days Endeavour will be docked to the Station, three  spacewalks will be performed dedicated to MBS installation and the installation of the replacement wrist-roll join on the Station's Canadarm2 robotic arm. 

The STS-111 crew includes Commander Kenneth Cockrell, Pilot Paul Lockhart, and Mission Specialists Franklin Chang-Diaz and Philippe Perrin, as well as the Expedition Five crew members Valeri Korzun, Peggy Whitson and Sergei Treschev. ______________________________________________

Tuesday, June 4, 2002 (11:17 a.m.)

Eastern Range Operation Forecast Op Number: F2342
Issued: 4 June 0730 AM EDT 
Valid: 5 June
Vehicle/Payload: STS-111 (Endeavour)/ISS UF-2
Location: Pad 39-A
Launch Weather Officer: Kathy Winters
Synoptic Discussion: A significant amount of cloud cover has moved into Florida from the southwest. The heaviest cloud cover is at approximately 25,000 feet, and the thickness and temperature level of the clouds is a concern for launch. Additionally, thunderstorms off the southwest coast of Florida and flow from the west-southwest aloft still raises a concern for anvils as well. Finally, with a high-pressure ridge building into North Florida on Wednesday, winds associated with the pressure gradient will shift to the southeast near the surface and east through the mid-levels. With this type of flow, the sea breeze that begins late in the morning  will be strong enough to cause a concern for crosswinds. 

Clouds Coverage Bases (feet) Tops (feet)
Cumulus 2/8 FEW 3500  7000
ALTOCUMULUS 3/8 SCT 10000 13000
CIRRUS 7/8 BKN 25000 30000

Visibility: 7
Wind: 10012 P 18 kt (60 foot pad winds)
Temperature: 80 F 
RH: 82% 
Dewpoint: 74 F
Weather: Thunderstorms inland.
Probability of KSC weather prohibiting launch: 60%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Anvils, thick cloud, crosswinds.
Probability of KSC weather prohibiting launch for 24 hour delay:
40%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Anvils, thick cloud.
Probability of KSC weather prohibiting launch for 48 hour delay: 60%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms with anvils vicinity.

Sunrise: 5 Jun 0625 EDT 
Moonrise: 6 June 0343 EDT
Illumination: 21%
Sunset: 5 Jun 2018 EDT 
Moonset: 6 June 1628 EDT

Next Forecast will be issued: As required.
______________________________________________

Tuesday, June 4, 2002 (10:30 a.m.)

The launch of Space Shuttle Endeavour on Mission STS-111 to the International Space Station remains on schedule for Wednesday, June 5. Technicians have changed out the faulty gaseous nitrogen regulator valve in the left Orbital Maneuvering System pod and successfully performed leak checks to retest the valve. Top off of both the liquid hydrogen and liquid oxygen in the Power Reactant Storage and Distribution System was completed this morning.

Today, weather forecasters are showing a 60 percent probability of weather prohibiting Wednesday's launch. Forecasts indicate a continued concern for afternoon thunderstorms and rain showers, with additional concerns for a strong sea breeze causing possible crosswind violations at the Shuttle Landing Facility (SLF) in case of a Return to Launch Site abort. At launch time, the SLF forecast shows an easterly wind, 12 to 18 knots. Seas in the Solid Rocket Booster retrieval area are forecast to be 4 to 6 feet, with winds between 7 and 18 knots and a sea temperature of 80 degrees.

A launch advisory will be issued this afternoon providing the planned launch time for Wednesday. ______________________________________________

Monday, June 3, 2002 (10:00 a.m.)

NASA managers postponed the launch of Space Shuttle Endeavour on Mission STS-111/UF2 to the International Space Station until Wednesday, June 5 to allow technicians time to change out a faulty gaseous nitrogen regulator valve in the left Orbital Maneuvering System pod.

Workers at the pad have completed the removal and replacement of the valve and leak checks are in work. The delay also made it necessary to top off both the liquid hydrogen and liquid oxygen in the Power Reactant Storage and Distribution System, which is scheduled to begin late tonight. 

The weather forecast for Wednesday shows some improvement over the last several days, but forecasters indicate a 40 percent chance of weather prohibiting launch on Wednesday due to possible afternoon thunderstorms and rain showers.

The four Shuttle astronauts and three Expedition Five crewmembers spent the weekend at KSC relaxing and reviewing their flight plans.

A launch advisory will be issued Tuesday afternoon providing the planned launch time for Wednesday.
______________________________________________

Monday, June 3, 2002 (8:36 a.m.)

Eastern Range Operation Forecast Op Number: F2342 Issued: 3 June 2002/0700 EDT 
Valid: 5 June 2002
Vehicle/Payload: STS-111 (Endeavour)/ISS UF-2
Location: CX 39A
Launch Weather Officer: Kathy Winters

Synoptic Discussion: Weather conditions are improving at KSC. With a high-pressure ridge building into North Florida on Wednesday, winds associated with the pressure gradient will shift to the southeast near the surface and east through the mid-levels. With this type of flow, the sea breeze that begins late in the morning will push well inland. With plenty of moisture still evident in the atmosphere, thunderstorms will again be generated by low-level convergence associated with the sea breeze, but storms will continue to move west, away from KSC, after forming. Still, winds at 35,000 to 45,000 feet will be from the west resulting in a threat from anvil clouds generated by these inland thunderstorms.

Clouds  Coverage  Bases (feet) Tops (feet)
Cumulus 2/8 FEW 3500 7000
ALTOCUMULUS 3/8 SCT  10000 13000
CIRRUS 4/8 SCT 25000 30000

Visibility: 7
Wind: 12012 P 18 kt (60 foot pad winds)
Temperature: 79 F 
RH: 85% 
Dewpoint: 74 F
Weather: Thunderstorms inland.
Probability of KSC weather prohibiting launch: 40%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Anvils associated with inland thunderstorms.
Probability of KSC weather prohibiting launch for 24 hour delay: 40%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Anvils associated with inland thunderstorms.
Probability of KSC weather prohibiting launch for 48 hour delay:
  60%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms with anvils vicinity.

Sunrise: 5 Jun 0625 EDT 
Moonrise: 6 June 0343 EDT 
Illumination: 21%
Sunset: 5 Jun 2018 EDT 
Moonset: 6 June 1628 EDT

Next Forecast will be issued: Tuesday, 4 June 2002 / 0700 EDT
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Sunday, June 2, 2002 (12:30 p.m.)

NASA managers today chose Wednesday, June 5, as the next opportunity to launch Space Shuttle Endeavour on Mission STS-111/UF2 to the International Space Station.

Mission managers met Sunday morning to assess the progress of changing a regulator in the left Orbital Maneuvering System pod aboard Endeavour.  This gaseous nitrogen pressure regulator is the same component that showed pressure differentials during the launch count last Thursday. Because of the uniqueness of the change out and the work to build a test fixture required, launch of Endeavour on the STS-111/UF2 mission to the International Space Station has been moved to Wednesday between 4 and 8 p.m. Eastern time. A launch advisory will be issued at approximately 5 p.m. EDT Tuesday providing the preferred launch time for Wednesday.  NASA Television coverage of the launch will begin at 2 p.m. Eastern. 

The long-range weather forecast for Wednesday shows some improvement in what has been seen over the last several days near the time of launch, but still indicates the chance of afternoon and evening thunderstorms and rain showers.

The four shuttle astronauts and three Expedition Five crewmembers spent the weekend relaxing and reviewing their flight plan to be executed once on orbit.

Aboard the ISS, the Expedition Four crew was notified of the additional delay shortly after the meeting by Mission Control and took the news in stride.
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Saturday, June 1, 2002 (2:00 p.m.)

NASA managers today chose Tuesday, June 4, as the next opportunity to launch Space Shuttle Endeavour on Mission STS-111/UF2 to the International Space Station.

Overnight Friday, technicians detected a problem with a regulator on the left Orbital Maneuvering System pod aboard Endeavour. Managers met Saturday and elected to replace the component, which moves the launch of STS-111 to no earlier than Tuesday.

Launch Tuesday will take place during a period extending from 4 - 8 p.m. EDT and a launch advisory will be issued at approximately 5 p.m. EDT Monday providing the planned launch time for Tuesday. NASA Television coverage of the launch will begin at 2:30 p.m. Eastern.

The gaseous nitrogen pressure regulator in the left Orbital Maneuvering System pod on Endeavour is the same component that showed pressure differentials during the launch count last Thursday.

The preliminary launch weather forecast for Tuesday shows some improvement in what has been seen over the last several days, but still indicates the chance of afternoon and evening thunderstorms and rain showers.

The four shuttle astronauts and three Expedition Five crewmembers will remain at the Kennedy Space Center until the next launch attempt.
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Friday, May 31, 2002 (5:26 p.m.)

Eastern Range Operation Forecast Op Number: F2342
Issued: 31 May 2002/1700 EDT
Valid: 3 June 2002
Vehicle/Payload: STS-111 (Endeavour)/ISS UF-2
Location: CX 39A
Launch Weather Officer: Kathy Winters
Synoptic Discussion: KSC will again have a sea breeze by late morning generating an easterly flow. With plenty of moisture available in the atmosphere, the low-level convergence caused by the interaction of the Florida sea breezes will generate thunderstorms in the center portion of the state. These storms will move towards the east after development causing concerns for launch. Additionally, upper level wind flow will be strong from the west-southwest resulting in a threat of anvil clouds from inland thunderstorms. 

Clouds Coverage Bases (feet) Tops (feet)
Cumulus 2/8 SCT 3500 7000
ALTOCUMULUS 3/8 SCT 10000 13000
CIRRUS 6/8 BKN 25000 28000

Visibility: 7
Wind: 14010 P 14 kt (60 foot pad winds)
Temperature: 78 F 
RH: 85% 
Dewpoint: 72 F
Weather: TSTMS VICINITY
Probability of KSC weather prohibiting launch: 70%
Probability of KSC weather prohibiting Tanking: 10%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 24 hour delay: 70%
Probability of KSC weather prohibiting Tanking: 10%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 48 hour delay:
60%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms vicinity.
Sunrise: 3 Jun 0625 EDT 
Moonrise: 4 June 0245 EDT 
Illumination: 39%
Sunset: 3 Jun 2017 EDT 
Moonset: 4 June 1444 EDT

Next Forecast will be issued: Sunday, 2 June 2002/12:00 EDT
______________________________________________

Friday, May 31, 2002 (3:30 p.m.)

NASA managers today chose Monday, June 3, as the next opportunity to launch Space Shuttle Endeavour on Mission STS-111/UF2 to the International Space Station. After reviewing weather forecasts for the weekend, mission managers determined that there was too high of a threat for severe thunderstorms in the KSC vicinity to make launch attempts for either Saturday or Sunday.

Early weather forecasting shows a 70 percent chance of weather violation at the preferred launch time Monday. The shuttle crew and Expedition Five crew will remain at the Kennedy Space Center reviewing mission plans, conducting proficiency training in the Shuttle Training Aircraft, relaxing and visiting with family members. A launch advisory will be issued Sunday afternoon providing the planned launch time for Monday.
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Friday, May 31, 2002 (10:30 a.m.)

At the tanking meeting this morning, mission managers postponed today's launch attempt for Space Shuttle Endeavour.

Forecasters predicted an 80 percent chance of weather prohibiting today's launch due to severe thunderstorms and rain showers within the vicinity of the launch pad throughout the day. At the Pad, workers will move the Rotating Service Structure back around the Shuttle for protection from approaching storms. A meeting will be held at 7:30 p.m. tonight to assess Saturday's weather forecast and determine if a tanking meeting will be held tomorrow.
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Thursday, May 30, 2002 (8:30 p.m.)

At 7:21 p.m. mission managers determined the launch of STS-111 would be scrubbed for 24 hours due to thunderstorms within a 20-mile radius of KSC. The launch countdown clock will be reset to T-11 hours with the launch scheduled for 7:22 p.m. The forecast for tomorrow indicates a 70 percent chance that weather will prohibit the launch. Tanking is scheduled to begin around 10 a.m. tomorrow morning. Launch commentary will begin on NASA TV at 4 p.m.
______________________________________________

Thursday, 30 May 2002 21:38:07 

Eastern Range Operation Forecast Op Number: F2342 Issued: 30 May 2002/2100 EDT 
Valid: 31 May 2002
Vehicle/Payload: STS-111 (Endeavour)/ISS UF-2
Location: CX 39A
Launch Weather Officer: Kathy Winters
Synoptic Discussion: KSC will again have a sea breeze by late morning generating an easterly flow. With plenty of moisture available in the atmosphere, the low-level convergence caused by the interaction of the Florida sea breezes will generate thunderstorms in the center portion of the state. These storms will move towards the east after development causing concerns for launch. Additionally, upper level wind flow will be stronger tomorrow increasing the threat from anvil clouds from the thunderstorms that form inland.

Clouds Coverage Bases (feet) Tops (feet)
Cumulus 3/8 SCT 3500 7000
ALTOCUMULUS 5/8 SCT 10000  13000
CIRRUS 6/8 BKN 25000 28000

Visibility: 7
Wind: 09010 P 14 kt (60 foot pad winds)
Temperature: 78 F 
RH: 85% 
Dewpoint: 72 F
Weather: TSTMS VICINITY
Probability of KSC weather prohibiting launch: 70%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 24 hour delay: 70%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 48 hour delay:
70%
Probability of KSC weather prohibiting Tanking: 0%
Primary concern(s): Thunderstorms vicinity.
Sunrise: 31 May 0626 EDT 
Moonrise: 1 June 0106 EDT
Illumination: 63%
Sunset: 30 May 2015 EDT 
Moonset: 1 June 1204 EDT

Next Forecast will be issued: As required
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REMAINING COUNTDOWN MILESTONES
*all times are Eastern

Launch-1 Day (Wednesday, May 29) 
(As of 5:00 p.m. EDT, the countdown clock is in a scheduled built-in hold at the T-11 hour mark)
* Flight crew equipment late stow
* Move Rotating Service Structure (RSS) to the park position (about 11:30p.m.)
* Perform ascent switch list
* Fuel cell flow-through purge complete

Launch Day (Thursday, May 30)
* Resume countdown at T-11 hours (3:49 a.m.)
* Activate the orbiter's fuel cells (4:59 a.m.)
* Clear the blast danger area of all non-essential personnel
* Switch Endeavour's purge air to gaseous nitrogen (6:04 a.m.)
* Enter planned 2-hour built-in hold at the T-6 hour mark (8:49 a.m.)
* Launch team verifies no violations of launch commit criteria prior to cryogenic loading of the external tank 
* Clear pad of all personnel
* Chilldown of propellant transfer lines (10:19 a.m.)
* Resume countdown at T-6 hours (10:49 a.m.)
* Begin loading the external tank with about 500,000 gallons of cryogenic propellants (about 10:19 a.m.)
* Complete filling the external tank with its flight load of liquid hydrogen and liquid oxygen propellants (about 1:24 p.m.)
* Enter planned 2-hour built-in hold at T-3 hours (1:49 p.m.) 
* Final Inspection Team proceed to launch pad 
* Perform inertial measurement unit preflight calibration 
* Align Merritt Island Launch Area (MILA) tracking antennas 
* Perform open loop test with Eastern Range 
* Resume countdown at T-3 hours (3:49 p.m.)
* Complete close-out preparations in the white room 
* Check cockpit switch configurations 
* Begin Eastern Range final network open loop command checks 
* Primary ascent guidance data is transferred to the backup flight system 
* Enter planned 10-minute hold at T-20 minutes (6:29 p.m.)
* NASA Test Director conducts final launch team briefings 
* Complete inertial measurement unit preflight alignments 
* Resume countdown at T-20 minutes (6:39 p.m.) 
* Transition the orbiter's onboard computers to launch configuration 
* Start fuel cell thermal conditioning 
* Close orbiter cabin vent valves
* Transition backup flight system to launch configuration 
* Enter estimated 45-minute hold at T-9 minutes (6:50 p.m.) 
* Launch Director, Mission Management Team and NASA Test Director conduct final polls for go/no go to launch 
* Resume countdown at T-9 minutes (about 7:35 p.m.)
* Start automatic ground launch sequencer (T-9:00 minutes)
* Retract orbiter crew access arm (T-7:30) 
* Start mission recorders (T-6:15) 
* Start Auxiliary Power Units (T-5:00)
* Arm SRB and ET range safety safe and arm devices (T-5:00) 
* Start liquid oxygen drainback (T-4:55) 
* Start orbiter aerosurface profile test (T-3:55) 
* Start main engine gimbal profile test (T-3:30) 
* Pressurize liquid oxygen tank (T-2:55)
* Begin retraction of the gaseous oxygen vent arm (T-2:55)
* Fuel cells to internal reactants (T-2:35)
* Pressurize liquid hydrogen tank (T-1:57) 
* Deactivate SRB joint heaters (T-1:00)
* Orbiter transfers from ground to internal power (T-0:50 seconds)
* Ground Launch Sequencer go for auto sequence start (T-0:31 seconds)
* SRB gimbal profile (T-0:21 seconds)
* Ignition of three Space Shuttle main engines (T-6.6 seconds)
* SRB ignition and liftoff (T-0)
______________________________________________

Wednesday, May 29, 2002, 5:00 p.m. EDT

The launch of Space Shuttle Endeavour has been confirmed for Thursday, May 30, at the preferred launch time of 7:44:26 p.m. EDT (23:44:26 GMT).  All remaining countdown activities continue on schedule.

The planar launch window on Thursday extends from 7:39:27 - 7:49:25 p.m. EDT (23:39:27 - 23:49:25 GMT) with the preferred launch time reflecting a flight day three rendezvous and docking with the International Space Station. The launch window will be updated to coincide with the latest orbital position of the Space Station and will be announced at the T-9 minute hold.

STS-111 is a scheduled 12-day mission with a planned KSC landing at about 2:13 p.m. EDT (18:13 GMT) on June 11. 

This mission marks the fourteenth Shuttle flight to the International Space Station and the third Shuttle mission this year. Mission STS-111 is the 18th flight of the orbiter Endeavour and the 110th flight overall in NASA's Space Shuttle program.

On mission STS-111, astronauts will deliver the Leonardo Multi-Purpose Logistics Module, the Mobile Remote Servicer Base System (MBS), and the Expedition Five crew to the International Space Station. During the seven days Endeavour will be docked to the Station, three spacewalks will be performed dedicated to MBS installation and the installation of the replacement wrist-roll joint on the Station's Canadarm2 robotic arm.

The STS-111 crew includes Commander Kenneth Cockrell, Pilot Paul Lockhart, and Mission Specialists Franklin Chang-Diaz and Philippe Perrin, as well as Expedition Five crew members Valery Korzun, Peggy Whitson and Sergei Treschev.
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Eastern Range Operation Forecast Op Number: F2342 Issued: 29 May 2002/0700 EDT 
Valid: 30 May 2002 
Vehicle/Payload: STS-111 (Endeavour)/ISS UF-2
Location: CX 39A
Launch Weather Officer: Kathy Winters

Synoptic Discussion: The weak low pressure system currently located off the east coast of North Florida will gradually move west-northwest and weaken, but will not be the main factor affecting launch. Low level winds at KSC will be light from the west-southwest until the sea breeze begins late in the morning, generating a southeasterly flow at KSC. With plenty of moisture available in the atmosphere, the low-level convergence caused by the interaction of the Florida sea breezes will generate thunderstorms in the center portion of the state. These storms will move towards the east after development causing concerns for launch including anvil clouds and lightning.

Clouds Coverage Bases (feet) Tops (feet)
Cumulus 3/8 SCT 3500 7000
ALTOCUMULUS 4/8 SCT 10000 13000
CIRRUS 5/8 BKN 25000 28000

Visibility: 7
Wind: 14010 P 14 kt (60 foot pad winds)
Temperature: 78 F 
RH: 85% 
Dewpoint: 72 F
Weather: TSTMS VICINITY
Probability of KSC weather prohibiting launch: 60%
Probability of KSC weather prohibiting Tanking: 10%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 24 hour delay: 70%
Probability of KSC weather prohibiting Tanking: 10%
Primary concern(s): Thunderstorms vicinity.
Probability of KSC weather prohibiting launch for 48 hour delay:
70%
Probability of KSC weather prohibiting Tanking: 10%
Primary concern(s): Thunderstorms vicinity.

Sunrise: 30 May 0626 EDT 
Moonrise: 29 May 2339 EDT 
Illumination: 81%
Sunset: 30 May 2015 EDT 
Moonset: 30 May 1009 EDT

Next Forecast will be issued: 30 May 2002 / 0700 EDT
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Tuesday, May 28, 2002 (10:00 a.m.)
Over the weekend, mission managers determined that one of the two valves in the Auxiliary Power Unit's coolant system (water spray boiler No. 3) could be replaced at the Pad without impacting the scheduled launch of Endeavour on May 30. Although this work had never been attempted before with a Shuttle at the Pad, technicians from vendor Hamilton Sundstrand were successful in replacing the valve. Functional tests of the new valve were completed Sunday, followed by 24-hour leak checks. Closeouts of the aft engine compartment were completed as the launch countdown picked up on schedule last night.

The STS-111 crew arrived at the Shuttle Landing Facility yesterday in preparation for their scheduled launch to the International Space Station this Thursday.

The weather forecast shows a 60 percent chance of weather prohibiting launch on Thursday due to possible thunderstorms in the vicinity. The forecast for a 24-hour and 48-hour scrub turnaround both indicate a 70 percent chance of weather prohibiting launch.
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Thursday, May 23, 2002 (4:30 p.m.)
Final preparations continue at Pad A for next Thursday's launch of Space Shuttle Endeavour to the International Space
Station.  

During routine testing, technicians observed that temperatures in the Auxiliary Power Unit's coolant system (water spray boiler No. 3) did not reach proper levels in the times required. Workers will enter the aft engine compartment tonight to inspect the water spray boiler and look for possible leaks. The system will be recycled and managers will determine if additional work is required. At this time, no impact to the launch schedule is expected.

At the pad in the orbiter's payload bay, late-stow items are being placed in the Multi-Purpose Logistics Module today. Launch countdown preparations are beginning, with the countdown scheduled to pick up early next week. ______________________________________________

Monday, May 20, 2002 (11:00 a.m.)
Last week the crew of STS-111 arrived to
participate in the Terminal Countdown Demonstration Test (TCDT) in preparation for the launch on May 30. As the astronauts were taking part in TCDT, mission managers met for the Flight Readiness Review and determined there were no issues or constraints at this time for Endeavour's launch next week. Late stow items are scheduled to placed in the Leonardo Multi-Purpose Logistics Module on Wednesday and Orbiter aft closeout and Extravehicular Mobility Unit installation and checkout is in work.
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Monday, May 13, 2002 (2:30 p.m.)
Over the weekend at Pad A, technicians completed inspections of 13 connector savers in the orbiter T-0 umbilicals after initial checks indicated several savers appeared to be loose. Only one of the 13 savers was not locking properly and was replaced. Workers today are inspecting welds on Mobile Launcher Platform 1 to verify the structural integrity of the hydrogen vent line. The Multi-Purpose Logistic Module interface verification test is complete. Payload bay doors are closed and payload closeouts are scheduled to begin today. Preparations for hypergolic loading are in work. The Terminal Countdown Demonstration Test for mission STS-111 is scheduled this week.
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Thursday, May 9, 2002 (10:00 a.m.)
At Pad A, technicians have completed the installation of the Space Station Remote Manipulator System replacement wrist joint as work continues for Endeavour's scheduled May 30 mission.

Preparations for the Multi-Purpose Logistic Module interface verification test are in work and scheduled to begin tomorrow. Beginning Friday, technicians will verify the integrity of 13 connector savers in the orbiter T-0 umbilicals after inspections indicated that several of the connectors appeared to be loose.

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Monday, May 6, 2002 (10:00 a.m.)
Work continued at Pad A as technicians completed the helium signature test in preparation for Endeavour's scheduled mission on May 30. Today, the Leonardo Multi-Purpose Logistics Module will be installed in the Shuttle's payload bay and on Wednesday the Space Station Remote Manipulator System replacement wrist joint will be brought on board.

Preparations for hypergolic loading are in work and scheduled to begin next week.

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Thursday, May 2, 2002 (10:00 a.m.)
At Pad A, launch pad validations and the Space Shuttle Main Engine Flight Readiness Test were completed for Endeavour's scheduled mission on May 30. Preparations for the helium signature test are underway. The payload bay doors are scheduled to be opened today for the installation of the Leonardo Multi Purpose Logistics Module on Monday.

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Monday, April 29, 2002 (10:00 a.m.)
After being mated to its External Tank and Solid Rocket Boosters in the Vehicle Assembly Building, Space Shuttle Endeavour began its rollout aboard the crawler-transporter this morning at 2:57 a.m. enroute to Complex 39, Pad A. The rollout was completed at 9:21 a.m. At the launch pad, Endeavour will undergo final processing operations in preparation for its scheduled May 30 launch. The trip to the pad took about
6� hours at a speed of .9 m.p.h.  The Leonardo Multi Purpose Logistics Module was delivered to the Pad last week and will be installed in Endeavour's payload bay this Wednesday.

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Thursday, April 25, 2002 (12 noon)
Shuttle Endeavour has been mated to the External Tank/Solid Rocket Boosters in the Vehicle Assembly Building (VAB) and the Shuttle Interface Test is being conducted to verify overall status of the STS-111 space vehicle. Final preparations will begin on Friday for Endeavour's rollout to the launch pad next week.

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Monday, April 22, 2002 (3:00 p.m.)
Shuttle Endeavour passed a major processing milestone today when it rolled out from its bay to the Vehicle Assembly Building (VAB) for space vehicle mate. Endeavour rolled out from the Orbiter Processing Facility (OPF) shortly before 10 a.m. this morning.

Endeavour will be mated to the External Tank/Solid Rocket Boosters atop the Mobile Launcher Platform tomorrow and the Shuttle Interface Test will be conducted to verify space vehicle systems.

The Leonardo Multi Purpose Logistics Module has been delivered to Pad A and will be installed in the Payload Ground Handling Mechanism, awaiting the arrival of Endeavour at the pad.

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