| T-00:00 |
Liftoff |
| With its LE-7A main engine and two solid rocket boosters firing, the 187-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 south from the launch site. |
|
| T+01:55 |
SRB-A Burnout |
| The H-2A's two solid rocket boosters exhaust their propellant and burn out at an altitude of 31 miles. |
|
| T+02:05 |
SRB-A Separation |
| The two solid rocket boosters are jettisoned. |
|
| T+04:10 |
Fairing Separation |
| After traversing the dense lower atmosphere and reaching an altitude of 91 miles, the rocket releases the 4-meter (13.1-foot) diameter payload fairing protecting the 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 more than 8,000 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 200 miles to accelerate the payloads to orbital velocity. |
|
| T+15:26 |
Second Stage Cutoff |
| The LE-5B second stage engine shuts down after reaching its specified orbital targets at an altitude of 420 miles and an inclination of 98 degrees. |
|
| T+16:16 |
KOMPSAT 3 Separation |
| The Korea Aerospace Research Institute's 1,763-pound KOMPSAT 3 high-resolution electro-optical Earth observation satellite is deployed from the upper position on the H-2A rocket's dual-payload adapter. |
|
| T+19:21 |
Lower Fairing/Adapter Separation |
| The adapter which connected the launcher to KOMPSAT 3 is jettisoned, followed five seconds later by the cylinder containing the GCOM W1 satellite and the mission's two secondary payloads. |
|
| T+23:11 |
GCOM W1 Separation |
| JAXA's 4,389-pound GCOM W1, or Shizuku, satellite is deployed from the H-2A rocket. |
|
| T+33:20 |
SDS 4 Separation |
| JAXA's 110-pound SDS 4 demonstration satellite is released from the H-2A upper stage. |
|
| T+50:00 |
Horyu 2 Separation |
| Built by students at the Kyushu Institute of Technology in Fukuoka, Japan, the Horyu 2 satellite separates from the H-2A rocket. |
|
