The H-ⅡA launch vehicle No. 20 was launched on December 12, 2011, at 10:21 a.m. from the Tanegashima Space Center, and sent the Radar 3 information gathering satellite into its scheduled orbit.

IHI Aerospace Co., Ltd. was involved at every step in the development and manufacture of the H-ⅡA's solid rocket boosters (SRB-A), rocket separation ordnance, and gas jet system for second-stage attitude control, and also provided support for the liftoff at the launch site.

The H-ⅡA launch vehicle No. 19 was launched on September 23, 2011, at 1:36 p.m. from the Tanegashima Space Center, and sent the Optical 4 information gathering satellite into its scheduled orbit.

IHI Aerospace Co., Ltd. was involved at every step in the development and manufacture of the H-ⅡA's solid rocket boosters (SRB-A), rocket separation ordnance, and gas jet system for second-stage attitude control, and also provided support for the liftoff at the launch site.