The GPM main satellite is the core of a global precipitation measurement (GPM) mission being carried out through international cooperation, mainly between the US and Japan. The satellite will observe rain and snowfall around the world. The satellite body developed by NASA is loaded with a dual-frequency precipitation radar (DPR), an observation device developed by Japan, and a GPM microwave imager (GMI), which is an observation device that was developed by NASA.
On February 28, 2014, the GPM/DPR, which consists of seven small satellites, was launched by piggybacking on to the H-IIA rocket-23.

STARS-II/Kagawa University

Kagawa satellite development project STARS

Mission:
1. Tether extension using a gravity gradient
2. Current collection using EDT (bare tether)
3. TSR control using a tether tension due to a gravity gradient
4. Extending and recovering a tether owing to tension control
Kagawa satellite development website

Microbe observation satellite TeikyoSat-3/Teikyo University

Mission:
1. Observations using a small satellite of impact to dictyostelium (slime mold) from a microgravity environment and cosmic radiation

Visible light communication experimental satellite/Shinshu University

ShindaiSat “Ginrei” project

Mission:
1. Two-way visible light communication experiment between the satellite and ground
2. Amateur radio services
ShindaiSat “Ginrei” website

KSAT2/Kagoshima University

KSAT2 project

Mission:
1. Original observation of atmospheric water vapor
2. Video photography and distribution from space
3. Basic experiment using a satellite positioning system in low altitude orbit
4. Experiment to determine satellite orbit using a radio interferometer
5. Experiment on satellite operations in ultra-low altitude orbit
6. Demonstration in space of a pantograph-type extending boom
7. Sending messages in support of Japan from space

Art satellite INVADER/Tama Art University

ARTSAT：Art and Satellite Project

Mission:
1. Artistic use of satellite data (telemetry)
2. Deploy a platform for satellite data utilization
3. Produce interactive works using satellites as a media
4. Deploy outreach through works of art
ARTSAT：Art and Satellite Project website

OPUSAT/Osaka Prefecture University

Small Spacecraft System Research Center, Osaka Prefecture University

Mission:
1. Demonstrations and experiments for space-resistance performance of lithium ion capacitor
2. Realize high-efficiency power storage technology using MPPT control
3. Realize high power acquisition technology through solar-oriented control using a magnetic torquer and via the deployment of a solar cell paddle
Small Spacecraft System Research Center, Osaka Prefecture University website

ITF-1/University of Tsukuba

University of Tsukuba network satellite project “Yui”

Mission:
1. Construct a network using small satellites
2. Demonstration of operations in space for new microcontrollers
3. Demonstration of operations of ultra-compact antennas
University of Tsukuba network satellite project “Yui” website

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