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H-2A launch timeline
Posted: October 6, 2014

T-00:00 Liftoff
With its LE-7A main engine and two solid rocket boosters firing, the 174-foot-tall H-2A rocket lifts off from the Yoshinobu launch complex on Tanegashima Island. A few moments later, the rocket will complete a pitch program to head east from the launch site.
T+01:38 SRB-A Burnout
The H-2A's two solid rocket boosters exhaust their propellant and burn out at an altitude of 28 miles.
T+01:48 SRB-A Separation
The two solid rocket boosters are jettisoned.
T+04:05 Fairing Separation
After traversing the dense lower atmosphere and reaching an altitude of 88 miles, the rocket releases the 4-meter (13.1-foot) diameter payload fairing protecting the Himawari 8 spacecraft during the early part of the flight.
T+06:36 Main Engine Cutoff
After consuming its liquid hydrogen and liquid oxygen propellants, the LE-7A first stage main engine shuts down. The first stage and solid rocket boosters push the rocket to a velocity of nearly 12,000 mph.
T+06:44 Stage Separation
The H-2A rocket's first stage is separated now, having completed its job. The spent stage will fall into the Pacific Ocean downrange from Tanegashima.
T+06:50 Second Stage Ignition
With the first stage jettisoned, the rocket's second stage takes over. The LE-5B hydrogen-fueled engine ignites at an altitude of 140 miles to accelerate the Himawari 8 payload to orbital velocity.
T+12:12 SECO 1
The LE-5B second stage engine shuts down after reaching a parking orbit with the Himawari 8 satellite. The second stage will coast for nearly 12 minutes before restarting to boost the spacecraft into geostationary transfer orbit.
T+23:50 Second Stage Restart
The LE-5B second stage engine reignites for a 3-minute, 17-second burn.
T+27:07 SECO 2
The H-2A rocket's LE-5B second stage engine shuts down after reaching an orbit with a high point of 35,976 kilometers (22,354 miles), a low point of 250 kilometers (155 miles), and an inclination of 22.4 degrees.
T+27:57 Himawari 8 Separation
The 7,716-pound Himawari 8 weather satellite separates from the H-2A rocket's second stage to complete the launch. Himawari 8 is designed for an eight-year weather observation mission for the Japan Meteorological Agency.

Data source: JAXA