Japanese
2022/01/31
We found a serious problem with the EFD-Level2 spinfit data (from v01_01 to v04_01). The corrected data (v05_01) has already been released. Please check the data version used in your research.
2021/10/25
All of the websites, wiki documents, and CDF data repository of ERG-SC will be temporarily unavailable due to regular maintenance of electrical substation from evening of 19-Nov-2021 to morning of 22-Nov-2021.
2020/11/02
All of the websites, wiki documents, and CDF data repository of ERG-SC will be temporarily unavailable due to regular maintenance of electrical substation from evening of 13-Nov-2020 to morning of 16-Nov-2020.
2020/08/06
CIDAS system will be suspended due to regular maintenance of data center from 10:00 JST to 12:00 JST on 13-Aug-2020.
2020/02/06
The paper about conjugate observations between Arase and PANSY (Kataoka+, 2019) has been selected as a EPS highlighted paper 2019.
EPS Highlighted papers 2019
2019/12/20
Please join us to celebrate the 3rd anniversary of the Arase satellite on December 20, 2019.
The satellite has been in great shape and will boldly continue its exploration to seek out and unravel the mystery of Geospace, as has achieved since the launch in 2016. The end of cycle 24 is approaching, and the new cycle 25 will begin soon.
2019/12/02
2020 ERG Science and Space Weather Workshop will be held at National Central University, Taiwan on Jan 13-15 2020.
2019/10/24
CIDAS system will be suspended due to regular maintenance of electrical substation from evening of 15-Nov-2019 to morning of 19-Nov-2019.
2019/10/24
The web page on quick-look plots of ERG(Arase) Space Weather data at SEES/JAXA will be temporary halted due to a rolling blackout.
2019/11/01 16:00 JST - 2019/11/06 12:00 JST
2019/09/12
The GRL article on molecular ions observed by Arase (Seki+, GRL, 2019: https://doi.org/10.1029/2019GL084163) has been selected as an Editor's choice.
2019/07/12
Quick look plots for frequency spectrum of PWE/WFC (Chorus burst, SWPIA burst) are available.
2018/10/26
All of the websites, wiki documents, and CDF data repository of ERG-SC will be temporarily unavailable during November 16(Fri)-19 (Mon), 2018 due to a planned campus-wide power outage.
2018/08/21
Integrated quick look plots for all instruments are available.
2018/08/03
Release of Level-2 data files of Arase (ERG) satellite.
2018/06/18
Papers on overview of the project, instruments, ground-based observations, modeling/simulations and science center are available in the ERG special issue in Earth, Planets and Space.
2018/02/15
Dance of auroras: Scientists make first direct observation of electron frolic (Press Release from University of Tokyo)
2017/12/20
Happy first anniversary for launching ARASE!!
2017/11/08
ERG-SC System will be unavailable because of system maintenance, from Sep. 17 17:00 to 19 21:00.
2017/09/11
'The 3rd ERG Mission Science Workshop' was held at NCKU (National Cheng Kung University) in Taipei, Taiwan, on 5-8 Sep. information
2017/01/23
Completion of Exploration of energization and Radiation in Geospace Arase(ERG)'s Critical Operations Phase.
2016/12/20
Success of Epsilon-2 Launch with ERG Aboard.

2021 ERG Science and Inner Magnetosphere Workshop will be held online on Feb. 9-10 2021.

Registration (Deadline: Jan. 20 2021)

The issue with PWE/EFD Spin-fit L2 data

We found a serious problem with the EFD-Level2 spinfit data (from v01_01 to v04_01). The corrected data (v05_01) has already been released. Please check the data version used in your research.

The error occasionally makes the amplitude and direction of the electric field vector different from the actual values

Plug-In Toolsl for SPEDAS

Release erg_plugin_08_16.zip
(WG) bleeding edge: 2021-12-06

Quick Look Plot

ALL INSTRUMENTS
PWE QUICK LOOK PLOT
PWE/WFC spectrum quick look plot
(WG) EMIC QUICK LOOK PLOT
LEPe PA QL QUICK LOOK PLOT

Data

Data list page

Analysis Tools

Various IDL- and web-based tools are available for researchers and students to analyze the ERG data.

Plug-In Tools for SPEDAS Plug-In Tools for SPEDAS The IDL-based software enabling seamless analyses of ERG data as wel as other projects.
ERG Science Center (ERG-SC) wiki ERG Science Center (ERG-SC) wiki The wiki is to provide various information on scientific data of the ERG (Exploration of energization and Radiation in Geospace) project
Conjunction Event Finder Orbit- Conjunction Event Finder CEF provides orbits and footprints of ERG and other satellites and information on ground-based instruments
Conjunction Event Finder2 QL - Conjunction Event Finder You can get the list of web links of QL plot in variaus projects.
Amazing Project Ground-Based Observation An easy-quick viewer & finder for future conjunctions of ERG and aurora cameras over the globe.

Collaborators

About 100 researchers from over 30 Japanese and overseas institutes/universities participate in the ERG  project.

Sitemap

About this page

The ERG (Exploration of energization and Radiation in Geospace) project is a mission to elucidate acceleration and loss mechanisms of relativistic electrons around Earth during geospace storms. The project consists of the satellite observation team, the ground-based network observation team, and the integrated data analysis/simulation team.

The ERG Science Center is operated by Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA) and Institute for Space-Earth Environmental Research (ISEE), Nagoya University as a Joint Research Center for Space Science. The science center archives data related to the ERG project, releases the data to the public, develops integrated analysis tools for the data, and promotes studies related to the ERG  project.

Contact