Changes and additions:
- August 14: Posting initial release
- September 5: Updating to reflect new launch date
- September 22: Updating with new in-plane launch time
- September 24: Updating to reflect new launch date
- September 26: Updating to reflect revised launch time

DATE/EDT.......DD...HH...MM...EVENT

Flight Day 1

10/14/08
Tue 10:16 PM...00...00...00...STS-125 launch
Tue 10:58 PM...00...00...42...OMS-2 rocket firing
Tue 11:06 PM...00...00...50...Post insertion timeline begins

10/15/08
Wed 12:46 AM...00...02...30...SRMS powerup
Wed 12:46 AM...00...02...30...Laptop computer network setup
Wed 12:46 AM...00...02...30...SSE activation; OCAC setup
Wed 01:11 AM...00...02...55...SRMS checkout
Wed 02:10 AM...00...03...54...NC-1 rendezvous rocket firing
Wed 02:21 AM...00...04...05...ET video downlink
Wed 02:31 AM...00...04...15...SSRMS SSE survey
Wed 02:31 AM...00...04...15...Wing leading edge sensor system activation
Wed 02:31 AM...00...04...15...SSE checkout
Wed 02:31 AM...00...04...15...SEE setup
Wed 02:41 AM...00...04...25...GIRA installation
Wed 02:51 AM...00...04...35...Umbilical well camera downlink
Wed 03:31 AM...00...05...15...Group B computer powerdown
Wed 04:01 AM...00...05...45...HDTV ET video downlink
Wed 05:16 AM...00...07...00...Crew sleep begins

Flight Day 2

Wed 01:16 PM...00...15...00...Crew wakeup
Wed 02:40 PM...00...16...24...NC2 rendezvous rocket firing
Wed 03:16 PM...00...17...00...SRMS unberths OBSS
Wed 03:51 PM...00...17...35...Airlock prepped
Wed 04:31 PM...00...18...15...Flight support structure prepped
Wed 04:41 PM...00...18...25...Spacesuit checkout
Wed 05:16 PM...00...19...00...Starboard RCC survey
Wed 05:56 PM...00...19...40...Starboard belly tile survey
Wed 05:56 PM...00...19...40...Spacesuit swap
Wed 06:26 PM...00...20...10...Spacesuit checkout
Wed 07:31 PM...00...21...15...Crew meals begin
Wed 07:41 PM...00...21...25...Nose cap survey
Wed 08:31 PM...00...22...15...Port wing RCC survey
Wed 08:51 PM...00...22...35...REBA checkout
Wed 09:21 PM...00...23...05...Port belly tile survey
Wed 09:41 PM...00...23...25...10.2 psi depressurization
Wed 10:26 PM...01...00...10...Ergometer setup
Wed 11:11 PM...01...00...55...Port wing RCC survey

10/16/08
Thu 12:21 AM...01...02...05...OBSS berthing
Thu 12:26 AM...01...02...10...LDRI downlink
Thu 01:21 AM...01...03...05...FCMS ops
Thu 01:51 AM...01...03...35...Rendezvous tools checkout
Thu 02:31 AM...01...04...15...OMS pod survey
Thu 02:55 AM...01...04...39...NC3 rendezvous rocket firing
Thu 04:46 AM...01...06...30...Crew sleep begins
Thu 04:51 AM...01...06...35...HST maneuver to rendezvous attitude
Thu 05:16 AM...01...07...00...HST: Low-gain direct to TDRS
Thu 05:41 AM...01...07...25...HST: 3 gyro ops reconfig
Thu 08:16 AM...01...10...00...HST: High gain antenna retraction

Flight Day 3

Thu 12:46 PM...01...14...30...Crew wakeup
Thu 03:31 PM...01...17...15...Group B computer powerup
Thu 03:46 PM...01...17...30...Rendezvous operations timeline begins
Thu 03:46 PM...01...17...30...Middeck preps
Thu 04:16 PM...01...18...00...EVA tools unstow/config
Thu 04:21 PM...01...18...05...HST: Solar arrays slewed to 90 degrees
Thu 04:22 PM...01...18...06...NC-4 rendezvous rocket firing
Thu 04:50 PM...01...18...34...EVA-1; Tools configured
Thu 06:16 PM...01...20...00...TI rendezvous rocket firing
Thu 07:36 PM...01...21...20...MC4 rendezvous rocket firing
Thu 08:01 PM...01...21...45...HST: Move to capture attitude
Thu 08:29 PM...01...22...13...HST capture
Thu 10:03 PM...01...23...47...HST berthing
Thu 10:06 PM...01...23...50...HST survey
Thu 10:21 PM...02...00...05...External power on
Thu 10:56 PM...02...00...40...Group B power down

10/17/08
Fri 12:01 AM...02...01...45...HST: Solar arrays slewed to 0 degrees
Fri 12:31 AM...02...02...15...EVA-1: Procedures review
Fri 03:46 AM...02...05...30...Crew sleep begins
Fri 04:06 AM...02...05...50...HST: KU-band checkout

Flight Day 4

Fri 10:16 AM...02...12...00...HST: Bay 3 battery dischage
Fri 11:46 AM...02...13...30...Crew wakeup
Fri 11:56 AM...02...13...40...HST: BSA checkout
Fri 01:01 PM...02...14...45...EVA-1: Preparations begin
Fri 02:31 PM...02...16...15...EVA-1: Spacesuit purge
Fri 02:41 PM...02...16...25...EVA-1: Spacesuit pre-breathe
Fri 03:21 PM...02...17...05...EVA-1: Airlock depressurization
Fri 03:31 PM...02...17...15...EVA-1: Spacesuits to battery power
Fri 03:36 PM...02...17...20...EVA-1: Airlock egress and setup
Fri 04:36 PM...02...18...20...EVA-1: WFC 3 installation
Fri 06:51 PM...02...20...35...EVA-1: Bay 3 battery pack
Fri 08:21 PM...02...22...05...EVA-1: SCM and locks
Fri 09:16 PM...02...23...00...EVA-1: Cleanup and airlock ingress
Fri 09:51 PM...02...23...35...HST: Solar array slewed to 90 degrees
Fri 10:01 PM...02...23...45...EVA-1: Airlock repressurization
Fri 10:16 PM...03...00...00...Spacesuit servicing
Fri 10:16 PM...03...00...00...HST: Battery functional test
Fri 11:16 PM...03...01...00...EVA-2: Tools configured
Fri 11:16 PM...03...01...00...Spacesuit swap
Fri 11:56 PM...03...01...40...HST: Solar arrays slewed to 0 degrees

10/18/08
Sat 12:21 AM...03...02...05...HST: WFC3 functional test
Sat 12:31 AM...03...02...15...EVA-2: Procedures review
Sat 03:46 AM...03...05...30...Crew sleep begins

Flight Day 5

Sat 11:46 AM...03...13...30...Crew wakeup
Sat 10:16 AM...03...12...00...HST: Bay 2 battery discharge
Sat 01:01 PM...03...14...45...EVA-2: Preparations begin
Sat 02:31 PM...03...16...15...EVA-2: Spacesuit purge
Sat 02:41 PM...03...16...25...EVA-2: Spacesuit pre-breathe
Sat 03:21 PM...03...17...05...EVA-2: Airlock depressurization
Sat 03:31 PM...03...17...15...EVA-2: Spacesuits to battery power
Sat 03:36 PM...03...17...20...EVA-2: Airlock egress and setup
Sat 04:16 PM...03...18...00...EVA-2: Rate sensing unit replacement
Sat 07:36 PM...03...21...20...EVA-2: Bay 2 battery pack
Sat 09:11 PM...03...22...55...EVA-2: Cleanup and airlock ingress
Sat 09:21 PM...03...23...05...HST: Battery aliveness test
Sat 09:56 PM...03...23...40...EVA-2: Airlock repressurization
Sat 10:06 PM...03...23...50...Spacesuit servicing
Sat 10:16 PM...04...00...00...HST: Solar arrays slewed to 90 degrees
Sat 10:41 PM...04...00...25...HST: Battery functional test
Sat 11:11 PM...04...00...55...EVA-3: Tools configured
Sat 11:11 PM...04...00...55...LIOH and battery config
Sat 11:31 PM...04...01...15...Spacesuit swap

10/19/08
Sun 12:01 AM...04...01...45...HST: Solar arrays slewed to 0 degrees
Sun 12:36 AM...04...02...20...EVA-3: Procedures review
Sun 12:46 AM...04...02...30...HST: RSU functional test
Sun 03:46 AM...04...05...30...Crew sleep begins

Flight Day 6

Sun 11:46 AM...04...13...30...Crew wakeup
Sun 01:01 PM...04...14...45...EVA-3: Preparations begin
Sun 02:31 PM...04...16...15...EVA-3: Spacesuit purge
Sun 02:41 PM...04...16...25...EVA-3: Spacesuit pre-breathe
Sun 03:21 PM...04...17...05...EVA-3: Airlock depressurization
Sun 03:31 PM...04...17...15...EVA-3: Spacesuits to battery power
Sun 03:36 PM...04...17...20...EVA-3: Airlock egress and setup
Sun 04:01 PM...04...17...45...EVA-3: Cosmic Origins Spectrograph
Sun 06:51 PM...04...20...35...EVA-3: ACS repair (part 1)
Sun 09:16 PM...04...23...00...EVA-3: Cleanup and airlock ingress
Sun 09:56 PM...04...23...40...HST: COS functional test
Sun 10:01 PM...04...23...45...EVA-3: Airlock repressurization
Sun 10:11 PM...04...23...55...Spacesuit servicing
Sun 11:16 PM...05...01...00...EVA-4: Tools configured
Sun 11:16 PM...05...01...00...LIOH and battery config
Sun 11:36 PM...05...01...20...Spacesuit swap

10/20/08
Mon 12:31 AM...05...02...15...EVA-4: Procedures review
Mon 03:46 AM...05...05...30...Crew sleep begins

Flight Day 7

Mon 11:46 AM...05...13...30...Crew wakeup
Mon 01:01 PM...05...14...45...EVA-4: Preparations begin
Mon 02:31 PM...05...16...15...EVA-4: Spacesuit purge
Mon 02:41 PM...05...16...25...EVA-4: Spacesuit pre-breathe
Mon 03:21 PM...05...17...05...EVA-4: Airlock depressurization
Mon 03:31 PM...05...17...15...EVA-4: Spacesuits to battery power
Mon 03:36 PM...05...17...20...EVA-4: Airlock egress and setup
Mon 04:01 PM...05...17...45...EVA-4: STIS repair
Mon 07:41 PM...05...21...25...HST: STIS aliveness test
Mon 08:16 PM...05...22...00...HST: STIS functional test
Mon 08:31 PM...05...22...15...EVA-4: NOBL 8
Mon 09:16 PM...05...23...00...EVA-4: Cleanup and airlock ingress
Mon 10:01 PM...05...23...45...EVA-4: Airlock repressurization
Mon 10:11 PM...05...23...55...Spacesuit servicing
Mon 11:16 PM...06...01...00...LIOH and battery config
Mon 11:16 PM...06...01...00...EVA-5: Tool config
Mon 11:36 PM...06...01...20...Spacesuit swap

10/21/08
Tue 12:31 AM...06...02...15...EVA-5: Procedures review
Tue 03:46 AM...06...05...30...Crew sleep begins

Flight Day 8

Tue 11:46 AM...06...13...30...Crew wakeup
Tue 01:01 PM...06...14...45...EVA-5: Preparations begin
Tue 02:31 PM...06...16...15...EVA-5: Spacesuit purge
Tue 02:41 PM...06...16...25...EVA-5: Spacesuit pre-breathe
Tue 03:21 PM...06...17...05...EVA-5: Airlock depressurization
Tue 03:31 PM...06...17...15...EVA-5: Spacesuits to battery power
Tue 03:36 PM...06...17...20...EVA-5: Airlock egress and setup
Tue 04:01 PM...06...17...45...EVA-5: FGS-2
Tue 05:36 PM...06...19...20...HST: FGS-2 aliveness test
Tue 05:36 PM...06...19...20...Soyuz TMA-13 launch (exact time TBD)
Tue 06:31 PM...06...20...15...EVA-5: ASC repair (part 2)
Tue 08:06 PM...06...21...50...HST: ACS/WFC aliveness test
Tue 08:46 PM...06...22...30...EVA-5: Cleanup and airlock ingress
Tue 09:41 PM...06...23...25...HST high gain antenna deploy (1)
Tue 10:06 PM...06...23...50...EVA-5: Airlock repressurization
Tue 10:16 PM...07...00...00...Spacesuit servicing
Tue 10:16 PM...07...00...00...HST: Solar arrays slewed to 90 degrees
Tue 11:16 PM...07...01...00...LIOH and battery config
Tue 11:21 PM...07...01...05...EVA-6: Tool config
Tue 11:33 PM...07...01...17...HST reboost window
Tue 11:36 PM...07...01...20...Spacesuit swap

10/22/08
Wed 12:21 AM...07...02...05...Rendezvous tools checkout
Wed 12:56 AM...07...02...40...HST high gain antenna deploy (2)
Wed 01:21 AM...07...03...05...HST: FGS-2 functional test
Wed 02:36 AM...07...04...20...HST: ACS/WFC functional test
Wed 03:46 AM...07...05...30...Crew sleep begins
Wed 04:16 AM...07...06...00...HST: ACS functional test and safing

Flight Day 9

Wed 11:46 AM...07...13...30...Crew wakeup
Wed 01:16 PM...07...15...00...Group B computer powerup
Wed 01:31 PM...07...15...15...SRMS grapples HST
Wed 02:26 PM...07...16...10...HST power umbilical disconnect
Wed 02:46 PM...07...16...30...HST unberthing maneuver
Wed 02:46 PM...07...16...30...EVA prep
Wed 03:26 PM...07...17...10...HST release prep
Wed 04:28 PM...07...18...12...HST release
Wed 04:29 PM...07...18...13...Separation burn No. 1
Wed 04:59 PM...07...18...43...Separation burn No. 2
Wed 05:41 PM...07...19...25...Crew meals
Wed 05:41 PM...07...19...25...FSS stow
Wed 05:46 PM...07...19...30...Group B computer powerdown
Wed 06:41 PM...07...20...25...SRMS unberths OBSS
Wed 07:56 PM...07...21...40...Starboard wing survey
Wed 09:36 PM...07...23...20...Nose cap survey
Wed 09:41 PM...07...23...25...EVA tools stowed
Wed 10:41 PM...08...00...25...Port wing survey

10/23/08
Thu 12:11 AM...08...01...55...SRMS berths OBSS
Thu 12:26 AM...08...02...10...LDRI downlink
Thu 12:46 AM...08...02...30...HST: 2nd ARU attitude
Thu 03:16 AM...08...05...00...Crew sleep begins

Flight Day 10

Thu 11:16 AM...08...13...00...Crew wakeup
Thu 02:06 PM...08...15...50...SRMS powerdown
Thu 02:21 PM...08...16...05...Crew news conference
Thu 03:46 PM...08...17...30...Crew off duty
Thu 05:46 PM...08...19...30...Joint crew meal
Thu 06:46 PM...08...20...30...Crew off duty
Thu 07:10 PM...08...20...54...Orbit adjust rocket firing
Thu 08:17 PM...08...22...01...Soyuz TMA-12 undocks from space station
Thu 10:53 PM...09...00...37...Soyuz TMA-12 deorbit burn
Thu 11:43 PM...09...01...27...Soyuz TMA-12 landing

10/24/08
Fri 12:11 AM...09...01...55...Shuttle-to-ISS call
Fri 02:46 AM...09...04...30...Crew sleep begins

Flight Day 11

Fri 10:46 AM...09...12...30...Crew wakeup
Fri 01:46 PM...09...15...30...Cabin stow begins
Fri 02:21 PM...09...16...05...Flight control system checkout
Fri 03:31 PM...09...17...15...RCS hotfire
Fri 03:46 PM...09...17...30...PILOT landing practice
Fri 04:46 PM...09...18...30...Deorbit review
Fri 05:16 PM...09...19...00...Joint crew meal
Fri 06:16 PM...09...20...00...Cabin stow resumes
Fri 07:06 PM...09...20...50...PAO event
Fri 07:26 PM...09...21...10...Crew photo
Fri 08:16 PM...09...22...00...L-1 comm check
Fri 08:51 PM...09...22...35...PAO event
Fri 09:11 PM...09...22...55...Entry video setup
Fri 10:46 PM...10...00...30...Wing leading edge sensor system deactivation
Fri 10:56 PM...10...00...40...PGSC stow (part 1)
Fri 11:11 PM...10...00...55...KU antenna stow
Fri 11:16 PM...10...01...00...Ergometer stow

10/25/08
Sat 02:16 AM...10...04...00...Crew sleep begins

Flight Day 12

Sat 10:16 AM...10...12...00...Crew wakeup
Sat 12:11 PM...10...13...55...Group B computer powerup
Sat 12:26 PM...10...14...10...IMU alignment
Sat 12:51 PM...10...14...35...PGSC stow (part 2)
Sat 01:41 PM...10...15...25...Deorbit timeline begins
Sat 05:44 PM...10...19...28...Deorbit ignition (orbit 164)
Sat 06:53 PM...10...20...37...Landing