T00:00 
Liftoff 
The first stage's SRBA solid rocket motor ignites and propels the 100ton Epsilon rocket away from the Uchinoura Space Center. The SRBA motor produces 510,000 pounds of thrust at full power. 

T+01:52 
Stage 1 Burnout 
The Epsilon's SRBA first stage, derived from boosters on the H2A and H2B rockets, burns out at an altitude of 54 miles. 

T+02:30 
Fairing Jettison 
The rocket's 8.2foot 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 M34c second stage motor fires to begin a 102second burn. 

T+04:27 
Stage 2 Burnout 
The Epsilon's M34c 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 6minute 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 KMV2b third stage motor ignites to begin an 89second 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 liquidfueled 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 11minute 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 SPRINTA 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 
SPRINTA Separation 
The 767pound SPRINTA planetary telescope separates from the Epsilon rocket as it flies over southern Brazil to begin a oneyear mission. 
