Satellites and Spacecraft

Satellites offer a wide variety of valuable services. These include communications and weather observation, which are essential to modern life, as well as astronomical observation and space development. Japanese satellites now in orbit are performing missions in a wide range of areas. For example, they have been playing an important role in assessing and analyzing abnormal weather patterns. For the purpose of planetary exploration, plans are under way for sending probes to the Moon and Mars.

Earth Observation Satellites

In Operation


Global Precipitation Measurement/
Dual-frequency Precipitation Radar
(GPM/DPR)


Global Change Observation Mission
1st - Water "SHIZUKU"
 (GCOM-W1)


Greenhouse gases Observing SATellite
"IBUKI" (GOSAT)


"Aqua"
Earth Observation Satellite


Tropical Rainfall Measuring Mission
"TRMM"


INnovative-technology Demonstration Experiment
"REIMEI" (INDEX)


Aurora Observation Satellite
"Akebono" (EXOS-D)


Magnetosheric Observation Satellite
(GEOTAIL)

Under Development


Global Change Observation Mission 1st - Climate (GCOM-C1)


Earth Cloud, Aerosol and Radiation Explorer
(EarthCARE)


Advanced Land Observing Satellite-2
"DAICHI-2" (ALOS-2)

Operation Completed


Advanced Land Observing Satellite
"DAICHI" (ALOS)

Communication, Positioning and Engineering Test Satellites

In Operation


Quasi-Zenith Satellite-1
"MICHIBIKI"


Wideband InterNetworking engineering test and Demonstration Satellite
"KIZUNA" (WINDS)


Small Demonstration Satellite-4 (SDS-4)


Engineering Test Satellite VIII
"KIKU No.8" (ETS-VIII)


Data Relay Test Satellite
"KODAMA" (DRTS)


Experimental Geodetic Satellite
"AJISAI" (EGS)

Astronomical Observation Satellites

In Operation


Solar Physics Satellite
"HINODE" (SOLAR-B)


X-ray Astronomy Satellite
"Suzaku" (ASTRO-EII)


Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere?"HISAKI" (SPRINT-A)

Under Development


X-ray Astronomy Satellite
"ASTRO-H"


Exploration of energization and Radiation in Geospace (ERG)

Development Suspension


Radio-Astronomical Satellite
"ASTRO-G"

Operation Completed


Infrared Imaging Satellite
"AKARI" (ASTRO-F)

Lunar and Planetary Exploration Spacecraft

In Operation


Venus Climate Orbiter
"AKATSUKI" (PLANET-C)


Small Solar Power Sail Demonstrator
"IKAROS"

Under Development


Mercury Exploration Mission
"BepiColombo"


Asteroid Explorer
"Hayabusa2"

Operation Completed


Asteroid Explorer
"HAYABUSA" (MUSES-C)


SELenological and ENgineering Explorer
"KAGUYA" (SELENE)