|
|
Flight 181: Ariane 5/ATV Countdown Timeline
SPACEFLIGHT NOW
Posted: March 5, 2008
NOTE: GMT is +5 hours ahead of Eastern Standard Time.
| H-1 Day |
March 8, 2008 |
H-11:30:00 (1633:04 GMT)....Begin final countdown
H-07:30:00 (2033:04 GMT)....Test launcher electrical systems
H-07:30:00 (2033:04 GMT)....Configure first stage for fueling
H-06:00:00 (2203:04 GMT)....Prepare launch pad for final countdown
H-06:00:00 (2203:04 GMT)....Load flight software
H-06:00:00 (2203:04 GMT)....Test radio frequency links
H-06:00:00 (2203:04 GMT)....Align inertial guidance units
H-05:00:00 (2303:04 GMT)....Clear launch pad personnel
H-05:00:00 (2303:04 GMT)....Pressurize ground liquid hydrogen and liquid
oxygen tanks
H-05:00:00 (2303:04 GMT)....Pressurize first and second stage attitude
control systems
H-04:30:00 (2333:04 GMT)....Begin chilldown of ground propellant lines
|
|
| H-0 Day |
March 9, 2008 |
H-04:00:00 (0003:04 GMT)....Load first stage liquid hydrogen and liquid
oxygen
H-03:00:00 (0103:04 GMT)....Begin chilldown of Vulcain 2 first stage main
engine
H-02:00:00 (0203:04 GMT)....Transition to propellant topping mode
H-02:00:00 (0203:04 GMT)....Load final ATV software
H-00:30:00 (0333:04 GMT)....Prepare synchronized launch sequence
H-00:08:00 (0355:04 GMT)....ATV in launch configuration and on
internal power
H-00:07:00 (0356:04 GMT)....Begin synchronized launch sequence
H-00:06:30 (0356:34 GMT)....Terminate propellant topping
H-00:06:30 (0356:34 GMT)....Arm launcher ordnance
H-00:04:00 (0359:04 GMT)....Pressurize first stage liquid hydrogen and
liquid oxygen tanks
H-00:03:30 (0359:34 GMT)....Calculate official launch time
H-00:02:00 (0401:04 GMT)....Open Vulcain 2 bleeder valves and close
chilldown valves
H-00:00:50 (0402:14 GMT)....Switch launcher to on-board power
H-00:00:37 (0402:27 GMT)....Begin automatic ignition sequence and start
on-board recorders
H-00:00:22 (0402:42 GMT)....Activate first stage attitude control system
H-00:00:22 (0402:42 GMT)....Switch launcher to on-board control
H-00:00:06 (0402:58 GMT)....Start hydrogen burn-off igniters and retract
cryogenic umbilical arms
H-00:00:03 (0403:01 GMT)....Switch inertial guidance units to flight mode
H-00:00:02 (0403:02 GMT)....Open launch table water valves
H0 (0403:04 GMT)............Vulcain 2 engine ignition
|
Data Source: EADS Astrium
|
|
|
|
Ares patch
 The Ares Project will develop two new rockets to launch astronauts back to the Moon under NASA's Vision for Exploration. The Ares 1 will employ a single space shuttle solid rocket booster to loft the Orion crew capsule. The gigantic Ares 5 will haul the equipment and cargo needed for such lunar voyages. This is the Ares emblem.
 U.S. STORE
Apollo patches
 The Apollo Patch Collection: Includes all 12 Apollo mission patches plus the Apollo Program Patch. Save over 20% off the Individual price.
U.S. STORE
Columbus mission patch
 The official astronaut embroidered patch of Atlantis' STS-122 mission that launched the Columbus science lab in February is available to U.S. customers from our store.
U.S. STORE
The ultimate Apollo 11 DVD
 This exceptional chronicle of the historic Apollo 11 lunar landing mission features new digital transfers of film and television coverage unmatched by any other.
Choose your store:
U.S. -
U.K. -
E.U. -
Worldwide
|
