CurrentARASE (ERG:Exploration of energization and Radiation in Geospace)

"ARASE" (ERG) aims at elucidating how highly charged electrons have been born while they generate and vanish repeatedly along with space storms caused by the disturbance of solar wind caused by space storms, and how space storms are developed.

HAYABUSA2

To elucidate high-energy electrons that repeat their generation and disappearance.

Geospace is the region of outer space near the Earth. The radiation belt called the "Van Allen radiation belt" lies within the geospace, and the belt captures a huge volume of highly charged energy particles that exceed mega electron volts.
This project aims at elucidating how highly charged electrons have been born while they generate and vanish repeatedly along with space storms caused by the disturbance of solar wind caused by space storms, and how space storms are developed.

Name Exploration of energization and Radiation in Geospace "ARASE" (ERG)
International Designation code 2016-080A
Launch Date 20:00, December 20, 2016 (JST)
Launch Location Uchinoura Space Center (USC)
Launch Vehicle Epsilon-2
Weight about 350kg
Orbital Altitude Perigee: about 300 km, Apogee: about 33,200 km
Orbital Inclinarion about 31°
Type of Orbit Elliptical orbit
Orbit Period about 538 min.
Satellite bus SPRINT bus
Major Scientific Instruments ・Low-energy particle experiments - electron analyzer (LEP-e)
・Low-energy particle experiments - ion mass analyzer (LEP-i)
・Medium-energy particle experiments - electron analyzer (MEP-e)
・Medium-energy particle experiments - ion mass analyzer (MEP-i)
・High-energy electron experiments (HEP)
・Extremely high-energy electron experiments (XEP)
・Magnetic field experiment (MGF)
・Plasma Wave Experiment (PWE)
・Software-type wave particle interaction analyzer (S-WPIA)