Discovery the most flown of all the shuttles

I showing it's age, repair work continues on the fuel leaks.  New updated countdown follows:

Sun  10/31/10

...............01:30 PM......Call to stations
73...47...00...02:00 PM......Countdown begins

Mon  11/01/10

63...47...00...12:00 AM......Fuel cell reactant load preps
58...17...00...05:30 AM......MEC/SRB power up
57...47...00...06:00 AM......Clear crew module

57...47...00...06:00 AM......Begin 4-hour built-in hold
57...47...00...06:00 AM......Clear blast danger area
57...02...00...06:45 AM......Orbiter pyro-initiator controller test
56...52...00...06:55 AM......SRB PIC test
55...52...00...07:55 AM......Master events controller pre-flight BITE test
53...47...00...10:00 AM......Resume countdown

52...17...00...11:30 AM......Fuel cell oxygen loading begins
49...47...00...02:00 PM......Fuel cell oxygen load complete
49...47...00...02:00 PM......Fuel cell hydrogen loading begins
47...17...00...04:30 PM......Fuel cell hydrogen loading complete
46...17...00...05:30 PM......Pad open; ingress white room

45...47...00...06:00 PM......Begin 8-hour built-in hold
45...47...00...06:00 PM......PRSD offload
44...47...00...07:00 PM......Crew module clean and vacuum
41...47...00...10:00 PM......Remove APU vent covers
41...17...00...10:30 PM......OMBUU demate
40...47...00...11:00 PM......SSME throat plug removal

Tue  11/02/10

37...47...00...02:00 AM......Countdown resumes


37...47...00...02:00 AM......Main engine preps
37...47...00...02:00 AM......MECs 1 and 2 on; avionics system checkout
34...47...00...05:00 AM......FRCS Tyvek cover remova/inspect
31...17...00...08:30 AM......Deflate RSS dock seals; tile inspection
30...47...00...09:00 AM......Tile inspection
30...47...00...09:00 AM......TSM prepped for fueling
29...57...26...09:50 AM......Crew orbiter/payload briefings

29...47...00...10:00 AM......Begin 13-hour 27-minute hold
28...17...00...11:30 AM......RSS rotation preps
28...17...00...11:30 AM......OIS communications check with JSC
27...27...00...12:20 PM......JSC flight control team on station
26...17...00...01:30 PM......Comm activation
25...47...00...02:00 PM......Crew module voice checks
24...47...00...03:00 PM......L-1 engineering briefing
24...32...00...03:15 PM......Crew weather briefing
23...47...00...04:00 PM......Flight crew equipment late stow
20...47...00...07:00 PM......RSS to park position
19...47...00...08:00 PM......Final TPS, debris inspection
19...17...00...08:30 PM......Ascent switch list
16...20...00...11:27 PM......Resume countdown

16...00...00...11:47 PM......Pad clear of non-essential personnel
16...00...00...11:47 PM......APU bite test

Wed  11/03/10

15...10...00...12:37 AM......Fuel cell activation
14...20...00...01:27 AM......Booster joint heater activation
13...50...00...01:57 AM......MEC pre-flight bite test
13...35...00...02:12 AM......Tanking weather update
12...50...00...02:57 AM......Final fueling preps; launch area clear
12...20...00...03:27 AM......Red crew assembled
11...35...00...04:12 AM......Fuel cell integrity checks complete

11...20...00...04:27 AM......Begin 2-hour built-in hold (T-minus 6 hours)
11...10...00...04:37 AM......Safe-and-arm PIC test
10...32...00...05:15 AM......Crew wakeup
10...20...00...05:27 AM......External tank ready for loading
10...02...00...05:45 AM......Mission management team tanking meeting
09...32...00...06:15 AM......NASA TV fueling coverage begins
09...20...00...06:27 AM......Resume countdown (T-minus 6 hours)

09...20...00...06:27 AM......LO2, LH2 transfer line chilldown
09...16...00...06:31 AM......Final crew medical checks
09...10...00...06:37 AM......Main propulsion system chill down
09...10...00...06:37 AM......LH2 slow fill
08...40...00...07:07 AM......LO2 slow fill
08...35...00...07:12 AM......Hydrogen ECO sensors go wet
08...30...00...07:17 AM......LO2 fast fill
08...27...00...07:20 AM......Crew medical checks
08...20...00...07:27 AM......LH2 fast fill
06...25...00...09:22 AM......LH2 topping
06...20...00...09:27 AM......LH2 replenish
06...20...00...09:27 AM......LO2 replenish

06...20...00...09:27 AM......Begin 2-hour 30-minute built-in hold (T-minus 3 hours)
06...20...00...09:27 AM......Closeout crew to white room
06...20...00...09:27 AM......External tank in stable replenish mode
06...17...00...09:30 AM......Ascent flight control team on console
06...05...00...09:42 AM......Astronaut support personnel comm checks
05...35...00...10:12 AM......Pre-ingress switch reconfig
05...32...00...10:15 AM......NASA TV launch coverage begins
04...25...00...11:22 AM......Final crew weather briefing
04...15...00...11:32 AM......Crew suit up begins
03...50...00...11:57 AM......Resume countdown (T-minus 3 hours)

03...45...00...12:02 PM......Crew departs O&C building
03...15...00...12:32 PM......Crew ingress
02...25...00...01:22 PM......Astronaut comm checks
02...00...00...01:47 PM......Hatch closure
01...30...00...02:17 PM......White room closeout

01...10...00...02:37 PM......Begin 10-minute built-in hold (T-minus 20m)
01...00...00...02:47 PM......NASA test director countdown briefing
01...00...00...02:47 PM......Resume countdown (T-minus 20m)

00...59...00...02:48 PM......Backup flight computer to OPS 1
00...55...00...02:52 PM......KSC area clear to launch

00...49...00...02:58 PM......Begin final built-in hold (T-minus 9m)
00...24...00...03:28:13 PM...NTD launch status verification
00...09...00...03:43:13 PM...Resume countdown (T-minus 9m)

00...07...30...03:47:13 PM...Orbiter access arm retraction
00...05...00...03:47:13 PM...Launch window opens
00...05...00...03:47:13 PM...Hydraulic power system (APU) start
00...04...55...03:47:18 PM...Terminate LO2 replenish
00...04...00...03:48:13 PM...Purge sequence 4 hydraulic test
00...04...00...03:48:13 PM...IMUs to inertial
00...03...55...03:48:18 PM...Aerosurface profile
00...03...30...03:48:43 PM...Main engine steering test
00...02...55...03:49:18 PM...LO2 tank pressurization
00...02...35...03:49:38 PM...Fuel cells to internal reactants
00...02...30...03:49:43 PM...Clear caution-and-warning memory
00...02...00...03:50:13 PM...Crew closes visors
00...01...57...03:50:16 PM...LH2 tank pressurization
00...00...50...03:51:23 PM...SRB joint heater deactivation
00...00...31...03:51:42 PM...Shuttle GPCs take control of countdown
00...00...21...03:51:52 PM...SRB steering test
00...00...07...03:52:06 PM...Main engine start (T-6.6 seconds)
00...00...00...03:52:13 PM...SRB ignition (LAUNCH) 

As the days slip the time does as well, with 3:52 the new launch time, very close to

the launch time of ASTP in 1975

STS 133 slips one day

Launch will now be on US Election Day Nov 2 at 4:17 pm.

STS-133 Countdown Timeline

The launch window is roughly 10 minutes long. To maximize ascent performance, NASA targets the middle of the window. A final hold in the countdown at the T-minus nine-minute mark will be extended as required to hit the desired launch time.

HH...MM...SS...EDT........EVENT

Sat  10/30/10

...............01:30 PM......Call to stations
74...12...00...02:00 PM......Countdown begins

Sun  10/31/10

64...12...00...12:00 AM......Fuel cell reactant load preps
58...42...00...05:30 AM......MEC/SRB power up
58...12...00...06:00 AM......Clear crew module

58...12...00...06:00 AM......Begin 4-hour built-in hold
58...12...00...06:00 AM......Clear blast danger area
57...27...00...06:45 AM......Orbiter pyro-initiator controller test
57...17...00...06:55 AM......SRB PIC test
56...17...00...07:55 AM......Master events controller pre-flight BITE test
54...12...00...10:00 AM......Resume countdown

52...42...00...11:30 AM......Fuel cell oxygen loading begins
50...12...00...02:00 PM......Fuel cell oxygen load complete
50...12...00...02:00 PM......Fuel cell hydrogen loading begins
47...42...00...04:30 PM......Fuel cell hydrogen loading complete
46...42...00...05:30 PM......Pad open; ingress white room

46...12...00...06:00 PM......Begin 8-hour built-in hold
46...12...00...06:00 PM......PRSD offload
45...12...00...07:00 PM......Crew module clean and vacuum
42...12...00...10:00 PM......Remove APU vent covers
41...42...00...10:30 PM......OMBUU demate
41...12...00...11:00 PM......SSME throat plug removal

Mon  11/01/10

38...12...00...02:00 AM......Countdown resumes

38...12...00...02:00 AM......Main engine preps
38...12...00...02:00 AM......MECs 1 and 2 on; avionics system checkout
35...12...00...05:00 AM......FRCS Tyvek cover remova/inspect
31...42...00...08:30 AM......Deflate RSS dock seals; tile inspection
31...12...00...09:00 AM......Tile inspection
31...12...00...09:00 AM......TSM prepped for fueling

30...12...00...10:00 AM......Begin 13-hour 52-minute hold
30...22...26...09:50 AM......Crew orbiter/payload briefings
28...42...00...11:30 AM......RSS rotation preps
28...42...00...11:30 AM......OIS communications check with JSC
27...52...00...12:20 PM......JSC flight control team on station
26...42...00...01:30 PM......Comm activation
26...12...00...02:00 PM......Crew module voice checks
25...12...00...03:00 PM......L-1 engineering briefing
24...57...00...03:15 PM......Crew weather briefing
24...12...00...04:00 PM......Flight crew equipment late stow
21...42...00...06:30 PM......RSS to park position
20...12...00...08:00 PM......Final TPS, debris inspection
19...42...00...08:30 PM......Ascent switch list
16...20...00...11:52 PM......Resume countdown

Tue  11/02/10

16...00...00...12:12 AM......Pad clear of non-essential personnel
16...00...00...12:12 AM......APU bite test
15...10...00...01:02 AM......Fuel cell activation
14...20...00...01:52 AM......Booster joint heater activation
13...50...00...02:22 AM......MEC pre-flight bite test
13...35...00...02:37 AM......Tanking weather update
12...50...00...03:22 AM......Final fueling preps; launch area clear
12...20...00...03:52 AM......Red crew assembled
11...35...00...04:37 AM......Fuel cell integrity checks complete

11...20...00...04:52 AM......Begin 2-hour built-in hold (T-minus 6 hours)
11...10...00...05:02 AM......Safe-and-arm PIC test
10...20...00...05:52 AM......External tank ready for loading
09...57...00...06:15 AM......Mission management team tanking meeting
09...32...00...06:40 AM......NASA TV fueling coverage begins
09...20...00...06:52 AM......Resume countdown (T-minus 6 hours)

09...20...00...06:52 AM......LO2, LH2 transfer line chilldown
09...16...00...06:56 AM......Final crew medical checks
09...10...00...07:02 AM......Main propulsion system chill down
09...10...00...07:02 AM......LH2 slow fill
08...40...00...07:32 AM......LO2 slow fill
08...35...00...07:37 AM......Hydrogen ECO sensors go wet
08...30...00...07:42 AM......LO2 fast fill
08...27...00...07:45 AM......Crew medical checks
08...20...00...07:52 AM......LH2 fast fill
06...25...00...09:47 AM......LH2 topping
06...20...00...09:52 AM......LH2 replenish
06...20...00...09:52 AM......LO2 replenish

06...20...00...09:52 AM......Begin 2-hour 30-minute built-in hold (T-minus 3 hours)
06...20...00...09:52 AM......Closeout crew to white room
06...20...00...09:52 AM......External tank in stable replenish mode
06...05...00...10:07 AM......Astronaut support personnel comm checks
05...35...00...10:37 AM......Pre-ingress switch reconfig
05...27...00...10:45 AM......NASA TV launch coverage begins
04...20...00...11:52 AM......Final crew weather briefing
04...15...00...11:57 AM......Crew suit up begins
03...50...00...12:22 PM......Resume countdown (T-minus 3 hours)

03...45...00...12:27 PM......Crew departs O&C building
03...15...00...12:57 PM......Crew ingress
02...25...00...01:47 PM......Astronaut comm checks
02...00...00...02:12 PM......Hatch closure
01...30...00...02:42 PM......White room closeout

01...10...00...03:02 PM......Begin 10-minute built-in hold (T-minus 20m)
01...00...00...03:12 PM......NASA test director countdown briefing
01...00...00...03:12 PM......Resume countdown (T-minus 20m)

00...59...00...03:13 PM......Backup flight computer to OPS 1
00...55...00...03:17 PM......KSC area clear to launch

00...49...00...03:23 PM......Begin final built-in hold (T-minus 9m)
00...24...00...03:53:56 PM...NTD launch status verification
00...09...00...04:08:56 PM...Resume countdown (T-minus 9m)

00...07...30...04:12:56 PM...Orbiter access arm retraction
00...05...00...04:12:56 PM...Launch window opens
00...05...00...04:12:56 PM...Hydraulic power system (APU) start
00...04...55...04:13:01 PM...Terminate LO2 replenish
00...04...00...04:13:56 PM...Purge sequence 4 hydraulic test
00...04...00...04:13:56 PM...IMUs to inertial
00...03...55...04:14:01 PM...Aerosurface profile
00...03...30...04:14:26 PM...Main engine steering test
00...02...55...04:15:01 PM...LO2 tank pressurization
00...02...35...04:15:21 PM...Fuel cells to internal reactants
00...02...30...04:15:26 PM...Clear caution-and-warning memory
00...02...00...04:15:56 PM...Crew closes visors
00...01...57...04:15:59 PM...LH2 tank pressurization
00...00...50...04:17:06 PM...SRB joint heater deactivation
00...00...31...04:17:25 PM...Shuttle GPCs take control of countdown
00...00...21...04:17:35 PM...SRB steering test
00...00...07...04:17:49 PM...Main engine start (T-6.6 seconds)
00...00...00...04:17:56 PM...SRB ignition (LAUNCH)