Timeline - Lanzamiento del Transbordador Espacial.
T- HH:mm:ss |
T- HH:mm:ss |
Event |
Channel |
Remark |
Note: |
TUL |
OCC |
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T-43:00:00 |
THE SHUTTLE TEST DIRECTOR PERFORMS THE TRADITIONAL CALL TO STATIONS AND THE COUNTDOWN CLOCK IS ACTIVATED. |
NTD |
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BEGIN FINAL VEHICLE AND FACILITY CLOSE-OUTS FOR LAUNCH. |
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CHECK OUT BACKUP FLIGHT SYSTEMS. |
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REVIEW FLIGHT SOFTWARE STORED IN MASS MEMORY UNITS AND DISPLAY SYSTEMS. |
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LOAD BACKUP FLIGHT SYSTEM SOFTWARE INTO THE ORBITER'S GENERAL PURPOSE COMPUTERS. |
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REMOVE MIDDECK AND FLIGHT DECK PLATFORMS |
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ACTIVATE AND TEST NAVIGATIONAL SYSTEMS. |
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COMPLETE PREPARATION TO LOAD POWER REACTANT STORAGE AND DISTRIBUTION SYSTEM. |
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COMPLETE FLIGHT DECK PRELIMINARY INSPECTIONS. |
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T-27:00:00 |
CLEAR LAUNCH PAD OF ALL NON-ESSENTIAL PERSONNEL |
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THIS IS THE FIRST BUILT-IN HOLD AND TYPICALLY LASTS FOUR HOURS |
BEGIN LOADING CRYOGENIC PROPELLANTS INTO ORBITER'S POWER REACTANT STORAGE AND DISTRIBUTION (PRSD) SYSTEM |
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T-27:00:00 |
BEGIN OPERATIONS TO LOAD CRYOGENIC REACTANTS INTO THE ORBITER'S FUEL CELL STORAGE TANKS |
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T-19:00:00 |
THIS BUILT-IN HOLD TYPICALLY LASTS FOUR HOURS, BUT MAY BE EXTENDED IF PRSD OFFLOAD IS REQUIRED. |
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DEMATE THE ORBITER'S MIDBODY UMBILICAL UNIT |
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CLEAN AND VACUUM CREW MODULE |
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EXTERNAL TANK NOSECONE PURGE |
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T-19:00:00 |
BEGIN FINAL PREPARATIONS OF THE ORBITER'S THREE MAIN ENGINES FOR MAIN PROPELLANT TANKING AND FLIGHT |
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FILL LAUNCH PAD SOUND SUPPRESSION SYSTEM WATER TANK |
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RESUME ORBITER AND GROUND SUPPORT EQUIPMENT CLOSE-OUTS |
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CLOSE OUT THE TAIL SERVICE MASTS ON THE MOBILE LAUNCHER PLATFORM |
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T-11:00:00 |
WEATHER AND ENGINEERING BRIEFINGS |
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THIS BUILT-IN HOLD VARIES BETWEEN 13 TO 14 HOURS. |
PAD DEBRIS INSPECTION AND CLOSEOUT |
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FLIGHT CREW EQUIPMENT LATE STOW |
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MOVE ROTATING SERVICE STRUCTURE TO "PARK" POSITION |
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ACTIVATE THE ORBITER'S INERTIAL MEASUREMENT UNITS AND COMMUNICATIONS SYSTEMS |
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PERFORM ASCENT SWITCH LIST |
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T-11:00:00 |
ACTIVATE THE ORBITER'S FUEL CELLS |
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CLEAR THE BLAST DANGER AREA OF ALL NONESSENTIAL PERSONNEL |
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SWITCH THE ORBITER'S PURGE AIR TO GASEOUS NITROGEN |
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T-06:00:00 |
MISSION MANAGEMENT TEAM AND LAUNCH DIRECTOR RECEIVE WEATHER UPDATE |
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THIS BUILT-IN HOLD TYPICALLY LASTS TWO HOURS, OR ONE HOUR FOR A 24- OR 48-HOUR SCRUB. |
LAUNCH TEAM VERIFIES NO VIOLATIONS OF LAUNCH COMMIT CRITERIA BEFORE LOADING THE EXTERNAL TANK WITH PROPELLANTS |
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CLEAR PAD OF ALL PERSONNEL |
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CHILL-DOWN OF PROPELLANT TRANSFER LINES |
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BEGIN LOADING THE EXTERNAL TANK WITH ABOUT 500,000 GALLONS OF CRYOGENIC PROPELLANTS |
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T-06:00:00 |
THE COUNT HAS RESUMED
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NTD, ALL |
NEXT PLANNED HOLD -> T-03:00:00 |
THIS IS THE RE-ENTRY POINT FOR 24 HOUR SCRUB/TURNAROUND OPERATIONS |
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PERFORM ET TPS ICE/FROST & DEBRIS EVALUATION |
136 |
TBC, CICE |
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ET READY FOR LOX & LH2 LOADING |
232 |
NTD, TBC |
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VERIFY NO INCREASE ABOVE BASELINE FOR H2 CONCENTRATION PRIOR TO START OF LOX/LH2 LOADING IN THE FOLLOWING LOCATIONS:
- ORBITER PAYLOAD BAY
- ORBITER LOWER MID BODY
- ORBITER AFT FUSELAGE
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132 |
OTC,CHGD |
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ORBITER READY FOR LOX & LH2 LOAD |
232 |
NTD,OTC |
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PROCEED WITH LOX & LH2 LOAD |
232,136 |
NTD,TBC |
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INITIATE LOX TRANSFER LINE CHILLDOWN |
232,136 |
NTD,TBC,CLOX |
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INITIATE LH2 TRANSFER LINE CHILLDOWN |
232,136 |
NTD,TBC,CLHY |
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PERFORM OMS PROP TANK REPRESSURIZATION |
132 |
OTC,COOS |
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VERIFY SRB NOZZLE FLEX BEARING & SRB NOZZLE TO CASE JOINT TEMPERATURE REQUIREMENTS |
136 |
TBC,CPWR |
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ACTIVATE LCC MONITORING SOFTWARE |
136 |
TBC,OTC |
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T-05:50:00 |
LH2 FACILITY & ORBITER CHILLDOWN COMPLETE. |
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INITIATE LH2 SLOW FILL TO 5% SENSORS WET |
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LOX TRANSFER LINE CHILLDOWN COMPLETE |
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INITIATE ORBITER MPS CHILLDOWN |
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T-05:22:00 |
PERFORM IMU PREFLIGHT CALIBRATION |
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T-05:20:00 |
ORBITER MPS CHILLDOWN COMPLETE.
INITIATE LOX SLOW FILL |
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T-05:15:00 |
LH2 ENGINE CUT OFF SENSORS WET |
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T-05:10:00 |
LOX TRANSITION TO FAST FILL COMPLETE |
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NOW IN FAST FILL TO 98% |
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T-05:00:00 |
T LH2 5% SENSOR WET. |
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INITIATE LH2 FAST FILL TO 98% |
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MPS LH2 RECIRC PUMPS ACTIVATED MOMENTARILY |
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T-04:40:00 |
MPS LH2 RECIRC PUMP ACTIVATION COMPLETE |
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T-04:00:00 |
PERFORM MILA ANTENNA ALIGNMENT |
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PERFORM LH2 ET ULLAGE PRESSURE TRANSDUCER NUMBER 4 VERIFICATION |
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T-03:45:00 |
LH2 98% SENSOR IS WET. INITIATE TOPPING TO 100% |
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ET BIPOD HEATERS ARE ACTIVATED |
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PERFORM ORBITER/GSE PIC RESISTANCE TEST |
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PERFORM SRB/ET PIC RESISTANCE TEST |
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ASSEMBLE ICE CREW & CLOSEOUT CREW FOR PAD ENTRY |
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T-03:30:00 |
SWITCH TO MILA SECONDARY ANTENNA & PROCEED WITH ALIGMENT |
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T-03:10:00 |
THE COUNTDOWN CLOCK WILL HOLD AT T-03:00:00 |
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T-03:05:00 |
LH2 TOPPING IS COMPLETE |
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INITIATE REPLENISH |
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LOX IN STABLE REPLENISH |
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LH2 IN STABLE REPLENISH |
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MILA ANTENNA ALIGNMENT COMPLETE |
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RESET ORBITER VENT DOOR COMMANDS |
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PERFORM T-3 HR SNAPSHOT ON FLIGHT CRITICAL & PAYLOAD MDMS |
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T-03:00:00 |
THE COUNTDOWN CLOCK IS HOLDING AT T-03H00M |
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THE NEXT PLANNED HOLD IS AT T-20M00S |
ICE TEAM READY FOR PAD ENTRY |
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CLEAR ICE TEAM & CLOSEOUT CREW TO PAD |
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PERFORM ICE/DEBRIS INSPECTION |
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INGRESS ORBITER CREW COMPARTMENT |
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GO FOR FLIGHT CREW WAKE UP |
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PERFORM COMM CHECKS |
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ALL ORB TEST TEAM SWITCH TO CHNL 212 |
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CONFIGURE & INSPECT CREW MODULE FOR CREW INGRESS |
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PERFORM POTABLE SUPPLY WATER ADJUST |
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PERFORM IMU PRE-FLIGHT CALIBRATION |
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PERFORM ER OPEN LOOP CHECKS |
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ER OPEN LOOP CHECK COMPLETE |
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VERIFY 4 HR 15 MIN JIMSPHERE HAS BEEN RELEASED |
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PERFORM FLIGHT CREW WEATHER BRIEFING |
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INSTALL LIOH CANISTERS |
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POWER UP SRB TRACKING SYSTEM |
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RESUME THE COUNT IN 5 MINUTES |
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T-03:00:00 |
THE COUNT HAS RESUMED |
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THE NEXT PLANNED HOLD IS AT T-20 MINUTES |
ICE/DEBRIS INSPECTION COMPLETE |
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PRESSURIZE MPS HELIUM TANKS |
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MONITOR PAYLOAD BAY & MIDBODY DURING HELIUM TANK PRESS |
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PERFORM SRB RGA POWER UP & TORQUE TEST |
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ACTIVATE SRB RGA LCC EXCEPTION MONITORING |
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T-02:55:00 |
FLIGHT CREW DEPART O&C BUILDING TO PAD |
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IDENTIFY ANY COLLISION AVOIDANCE TIMES FOR THIS LAUNCH WINDOW OR LAUNCH PERIOD |
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T-02:45:00 |
CE DEBRIS REPORT |
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VERIFY NO VIOLATION OF LAUNCH COMMIT CRITERIA |
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T-02:40:00 |
VERIFY TLA SITES |
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T-02:30:00 |
SWITCH STANDBY FRONT END PROCESSORS TO RF |
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MPS HELIUM TANK PRESSURIZATION IS COMPLETE |
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PERFORM ET LIQUID LEVEL SENSOR CHECKS |
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PERFORM SRB MDM COUNTDOWN VERIFICATION |
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INGRESS FLIGHT CREW & SEATS |
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T-02:15:00 |
ET LIQUID LEVEL SENSOR CHECKS COMPLETE |
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T-02:10:00 |
PERFORM POST INGRESS SWITCH RECONFIGURATION |
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T-02:00:00 |
PERFORM GLS INITIALIZATION |
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REPORT STATUS IN RETRIEVAL AREA |
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ACTIVATE SRB HPU GAS GENERATOR HEATERS |
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T-01:55:00 |
PERFORM FIRST MOTION SIMULATED SIGNAL TEST |
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T-01:50:00 |
PERFORM ETR SRSS VERIFICATION TEST |
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T-01:35:00 |
VERIFY ALL SYSTEMS READY FOR CREW MODULE CLOSEOUT |
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T-01:30:00 |
PERFORM AIR TO GROUND VOICE CHECKS |
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PERFORM SRM CHAMBER PRESSURE VERIFICATION |
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T-01:20:00 |
THE COUNTDOWN CLOCK WILL HOLD |
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COUNTDOWN CONTINGENCY HOLD POINT |
CLOSEOUT CREW COMPARTMENT HATCH |
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PERFORM ER OPEN LOOP AUTOMATIC COMMAND |
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CARRIER CONTROL VALIDATION TESTS |
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T-01:10:00 |
PERFORM ETR HOLDFIRE CHECKS |
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PERFORM FINAL COLLISION AVOIDANCE UPDATE |
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PERFORM CABIN LEAK CHECK |
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T-01:00:00 |
SRM CHAMBER PRESSURE VERIFICATION IS COMPLETE |
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T-00:55:00 |
PERFORM S-BAND SYSTEM HIGH POWER/FM ACTIVATION |
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T-00:50:00 |
PERFORM TERMINAL COUNT SRSS CLOSED LOOP TEST |
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T-00:45:00 |
PERFORM GLS MAINLINE ACTIVATION |
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PERFORM ORB/SRB LDB REDUNDANCY CHECKS |
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T-00:40:00 |
GLS PRESEQUENCING HAS STARTED |
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FINAL CABIN LEAK CHECKS COMPLETE |
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PERFORM CABIN VENT |
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T-00:32:00 |
PERFORM PASS/BFS TRANSFER PREPARATION |
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T-00:30:00 |
PERFORM OMS GN2 PRESSURIZATION |
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T-00:29:00 |
PERFORM MAIN ENGINE CONTROLLER PREFLIGHT BITE CHECK |
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T-00:22:00 |
PERFORM PASS-BFS TRANSFER |
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THE COUNTDOWN CLOCK WILL HOLD AT T-20 |
CLOSE CABIN VENT VALVES |
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T-00:20:00 |
CLEAR CLOSEOUT CREW FROM PAD |
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T-00:20:00 |
THE COUNTDOWN CLOCK IS HOLDING AT T-20 MINUTES FOR A PLANNED HOLD OF 10 MINUTES |
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REPORT HOLD TIME CONSTRAINTS |
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REPORT LOX DRAINBACK HOLD TIME |
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VERIFY CONSOLE PROGRAMS |
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20 MINUTE RECYCLE ENTRY |
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ALL TEST TEAM PERSONNEL SWITCH TO CHNL 212 |
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VERIFY STATUS OF LANDING SITES |
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T-20 MIN BRIEFING: |
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IMU PREFLIGHT ALIGNMENT IS COMPLETE. |
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READY FOR TRANSITION TO OPS 1 |
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ACTIVATE GNC PROFILE MONITOR |
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T-00:20:00 |
THE COUNTDOWN HAS RESUMED |
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THE NEXT HOLD WILL BE AT T-9 MINUTES |
PERFORM FUEL CELL PURGE |
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OPS TRANSITION IS COMPLETE |
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T-00:18:30 |
BACKUP FLT SYSTEM TO OPS 1 TRANSITION IS COMPLETE |
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T-00:18:00 |
PERFORM T-20 MINUTE GPC DUMP |
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T-00:16:00 |
PERFORM BACKUP FLT SYSTEM PREFLIGHT |
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UPLINK LOADING |
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VERIFY WATER SPRAY BOILER QUANTITY |
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PERFORM MPS HELIUM RECONFIGURATION |
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T-00:15:00 |
OMS/RCS CROSSFEED VALVES CONFIGURED FOR FLIGHT |
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INITIATE SRB AFT SKIRT GN2 PURGE HIGH FLOW RATE FOR LEFT & RIGHT SRBs |
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T-00:13:00 |
FUEL CELL PURGE IS COMPLETE |
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ADJUST FUEL CELL LOADS |
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T-00:12:00 |
T-20 MINUTE GPC DUMP IS COMPLETE |
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THE COUNTDOWN CLOCK WILL HOLD AT T-9 MINUTES |
T-00:09:30 |
VERIFY SRB HPU LEVELS |
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T-00:09:00 |
THE COUNTDOWN CLOCK IS HOLDING AT T-9 MINUTES |
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PLANNED HOLD
- REDUCE PAYLOAD BAY PURGE FLOWRATE IF GREATER THAN 180 LBS/MIN
- NTD LAUNCH READINESS POLL OF SHUTTLE LAUNCH TEAM
- PERFORM NSTS OPERATIONS MANAGER'S
- LAUNCH READINESS CHECK
- VERIFY CAPE WEATHER FORECASTS MEETS LAUNCH
- WEATHER CRITERIA
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FINAL "GO / NO GO" |
THE COUNTDOWN CLOCK WILL RESUME IN 4 MINUTES |
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PERFORM HGDS & BACKUP HGDS AUTO CALIBRATION |
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REMOVE SRB IGNITER HEATER POWER |
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RESUME THE COUNT |
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T-00:09:00 |
THE COUNT HAS RESUMED |
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GLS AUTO SEQUENCE HAS BEEN INITIATED |
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SELECT PAYLOAD BAY SAMPLE LINE |
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T-00:07:30 |
RETRACT ORBITER ACCESS ARM |
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T-00:07:00 |
SELECT MIDBODY SAMPLE LINE |
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T-00:06:15 |
PERFORM APU PRE-START |
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SELECT ET INTERTANK SAMPLE LINE |
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T-00:05:00 |
GO FOR APU START |
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T-00:04:55 |
VERIFY ET/SRB RANGE SAFETY SYSTEM SAFING & ARM DEVICE ARMED |
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VERIFY SRM IGNITION SAFING & ARM DEVICE ARMED |
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TERMINATE LOX REPLENISH |
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T-00:04:48 |
CLOSE LOX INBOARD F&D VALVE |
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T-00:04:35 |
OPEN LOX DRAIN VALVE |
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T-00:04:30 |
MAIN FUEL VALVE HEATERS OFF |
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T-00:04:00 |
INITIATE SSME PURGE SEQUENCE |
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VERIFY SSME VALVE MOVEMENT IN THE CLOSE DIRECTION |
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T-00:03:55 |
INITIATE ORBITER AERO SURFACES PROFILE CHECK |
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T-00:03:30 |
INITIATE MPS GIMBAL PROFILE CHECKS |
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T-00:03:03 |
MPS ENGINES TO START POSITION |
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VERIFY BODY FLAP TO LAUNCH POSITION |
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T-00:03:00 |
SELECT AFT FUSELAGE SAMPLE LINE |
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T-00:02:55 |
INITIATE ET LOX PRESSURIZATION |
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TERMINATE SSME GN2 PURGE |
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T-00:02:50 |
TERMINATE GOX VENT HOOD PURGE |
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RETRACT GOX VENT HOOD |
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T-00:02:35 |
PRSD TRANSFER TO INTERNAL REACTANTS |
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T-00:02:00 |
CLOSE VISORS |
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T-00:01:57 |
TERMINATE LH2 REPLENISH |
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CLOSE LH2 TOPPING VALVE |
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CLOSE LH2 VENT VALVE |
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T-00:01:46 |
INITIATE LH2 PREPRESS |
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T-00:01:30 |
T-1 MINUTE 30 SECONDS |
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ET BIPOD HEATERS OFF |
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T-00:01:00 |
T-1 MINUTE |
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T-00:00:55 |
PERFORM SRB FWD MDM LOCKOUT |
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VERIFY SRB MDM CRITICAL COMMANDS |
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T-00:00:50 |
GROUND POWER REMOVAL |
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T-00:00:48 |
CLOSE LOX & LH2 OUTBOARD FILL & DRAIN VALVES |
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DEACTIVATE SRB JOINT HEATERS |
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T-00:00:31 |
GLS GO FOR AUTO SEQUENCE
ARM CUT OFF
INITIATE RSL5
ORB VENT DOOR SE9 START |
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T-00:00:28 |
START SRB APU'S |
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T-00:00:26 |
START SRB APU'S |
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T-00:00:25 |
25 SECONDS |
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T-00:00:21 |
START SRB GIMBAL TEST |
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T-00:00:20 |
20 SECONDS |
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T-00:00:16 |
ACTIVATE SOUND SUPPRESSION WATER |
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T-00:00:15 |
15 SECONDS |
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T-00:00:13 |
PERFORM SRB AFT MDMS LOCKOUT |
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VERIFY LH2 HIGH POINT BLEED VALVE CLOSED TERMINATE MPS HELIUM FILL |
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T-00:00:10 |
10 SECONDS |
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FREE HYDROGEN BURN OFF SYSTEM IGNITION GLS GO FOR MAIN ENGINE START |
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REMOVE ET/SRB RANGE SAFETY INHIBITS |
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T-00:00:06.6 |
MAIN ENGINE 3 START COMMAND |
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T-00:00:06.48 |
MAIN ENGINE 2 START COMMAND |
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T-00:00:06.36 |
MAIN ENGINE 1 START COMMAND |
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T-00:00:00 |
T-ZERO SRB IGNITION |
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SRB HOLDDOWN RELEASE COMMAND |
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LIFTOFF |
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