| T-00:00 |
Liftoff |
| The first stage's SRB-A solid rocket motor ignites and propels the 100-ton Epsilon rocket away from the Uchinoura Space Center. The SRB-A motor produces 510,000 pounds of thrust at full power. |
|
| T+01:52 |
Stage 1 Burnout |
| The Epsilon's SRB-A first stage, derived from boosters on the H-2A and H-2B rockets, burns out at an altitude of 54 miles. |
|
| T+02:30 |
Fairing Jettison |
| The rocket's 8.2-foot diameter payload fairing is released at an altitude of 91 miles. |
|
| T+02:41 |
Stage 1 Separation |
| The Epsilon's empty first stage separates moments before ignition of the rocket's second stage motor. |
|
| T+02:45 |
Stage 2 Ignition |
| The M-34c second stage motor fires to begin a 102-second burn. |
|
| T+04:27 |
Stage 2 Burnout |
| The Epsilon's M-34c second stage burns out after reaching a velocity of 11,400 mph at a downrange distance of 257 miles east of the launch site. The Epsilon rocket enters a 6-minute coast period. |
|
| T+10:24 |
Stage 2 Separation |
| The Epsilon's second and third stages separate ahead of third stage ignition. |
|
| T+10:28 |
Stage 3 Ignition |
| The rocket's KM-V2b third stage motor ignites to begin an 89-second burn. |
|
| T+11:57 |
Stage 3 Burnout |
| The third stage consumes its supply of solid propellant as the Epsilon rocket begins another coast over the Pacific Ocean. |
|
| T+16:48 |
Stage 3 Separation |
| The third stage solid rocket motor separates from the Epsilon rocket's liquid-fueled fourth stage, which is called the Post Boost Stage, or PBS. |
|
| T+19:08 |
PBS First Ignition |
| The Post Boost Stage ignites for a nearly 11-minute burn as the rocket flies just southwest of Hawaii. |
|
| T+29:58 |
PBS First Shutdown |
| The Post Boost Stage thrusters turn off after reaching a parking orbit. |
|
| T+53:50 |
PBS Second Ignition |
| The Post Boost Stage reignites to place the SPRINT-A spacecraft in the proper orbit for deployment. |
|
| T+60:30 |
PBS Second Shutdown |
| The Post Boost Stage shuts down after reaching a planned orbit with a low point of 950 kilometers, or 590 miles, a high point of 1,150 kilometers, or 714 miles, and an inclination of 31 degrees. |
|
| T+61:40 |
SPRINT-A Separation |
| The 767-pound SPRINT-A planetary telescope separates from the Epsilon rocket as it flies over southern Brazil to begin a one-year mission. |
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