Current status of Current status of

A. Matsuoka, Y. Miyoshi, I. A. Matsuoka, Y. Miyoshi, I. Shinohara, Shinohara,

T. Takashima, K. Asamura, andT. Takashima, K. Asamura, and

ERG project teamERG project team

ERG project ERG project

Van Allen Probes SWG 2014/09

ERGERG Project Team Project Team

ERGERG satellite satellite (M-class mission of ISAS/JAXA) (M-class mission of ISAS/JAXA)

・ apogee geocentric distance ：　 5.5 Re ・ perigee altitude: 300 km・ inclination angle: 31 deg (Lmax ~ 9) ・ initial apogee MLT: 09:00・ spin period: 8 sec・ planned launch date: -2016・ nominal mission life: > 1yr・ Launch vehicle: Epsilon

FY 2009 - Mission Definition Review. System Requirement Review.

Mission Status & Schedule

FY 2011 - System Definition Review

FY 2012 - Preliminary Design Review

FY 2013 - Critical Design Review

FY 2014-2015 - Development of the flight model/integration test

2016 - Launch of the satellite

・ Magnetometer Network ： MAGDAS, 210MM, STEL, Antarctica Network (Flux gate/search coil)

・ Radar Network: SuperDARN network

・ Optical Imager Network ： OMTIs (Canada, Norway, Siberia), Antarctica

The The ERGERG ground networks ground networks

・ Riometer Network ： Canada, Antarctica

・ LF-standard radio waves ： Canada, Norway

・ VLF wave Network ： Canada, Antarctica Network

Ground Monitor of Fields / Waves

Ground Monitor of plasma distributions and precipitations

The The ERG ERG Science Center

　　　 ERG –science center

ERG-satellite data ERG-ground data ERG-modeling data

All science dataare archived with CDF

IDL/SPEDAS is a projectdata analysis software.Collaboration with THEMIS

SPEDAS has included the ERG-plugin tools. (210MM magnetometer, SuperDARN radars etc)

　　　 users

　　　 L-2/3 data will be opened to the public via ERG-science center.

Conjunction Event FinderConjunction Event Finder

Web-based interactive tool to display the satellite orbits as well as the footprints. Easy to find the conjunction between ground observations and satellites.

Van Allen Probes

THEMIS Cluster

THEMIS

Van Allen Probes Geotail

Cluster

Xgsm

Yg

sm

Zgsm

Xgsm

Conjunction Event FinderConjunction Event Finder

Web-based interactive tool to display the satellite orbits as well as the footprints. Easy to find the conjunction between ground observations and satellites.

Van Allen Probes

Northern Hemisphere Southern Hemisphere

Van Allen Probes

Summary Summary

- The ERG project is now going; the satellite will be launched in 2016.

- Data of the ERG ground network observations have been archived with CDF format and opened to the public. The software for the data analysis has been developed with THEMIS team. SPEDAS has included several plug-in tools for ERG data

- Conjunction event finder will be helpful for the coordinated observations between satellites and ground observations.

Akebono-VAP Akebono-VAP collaborationcollaboration

Ayako MatsuokaAyako Matsuoka

Akebono Project ManagerAkebono Project Manager

ISAS/JAXAISAS/JAXA

10

Akebono (EXOS-Akebono (EXOS-D)D) Launch : Feb 22 1989

Radiation monitor data in 2013

Projection to themagnetic meridional plane

12

Akebono Data Opened to Akebono Data Opened to the Publicthe Public

Available DataAvailable Data RDM : Radiation monitorRDM : Radiation monitor

RDM measures the electron flux in three energy ranges RDM measures the electron flux in three energy ranges (0.3-0.95, 0.95-2.5, >2.5 MeV)(0.3-0.95, 0.95-2.5, >2.5 MeV)

Only the data of the energy >2.5MeV are open to the Only the data of the energy >2.5MeV are open to the public. public.

VLF : Low-frequency plasma wavesVLF : Low-frequency plasma waves MCA (multi-channel analyzer) data are open to the public.MCA (multi-channel analyzer) data are open to the public. E×1 & B×1, 16 channels each, <17.8kHzE×1 & B×1, 16 channels each, <17.8kHz

PWS : High-frequency plasma wavesPWS : High-frequency plasma waves Dynamic spectra are open to the public.Dynamic spectra are open to the public. E×1, 20kHz ~ 5MHzE×1, 20kHz ~ 5MHz

Akebono Data Opened to Akebono Data Opened to the Publicthe Public

Summary Plots (From Oct/2012 to July/2014)Summary Plots (From Oct/2012 to July/2014) http://ergsc.stelab.nagoya-u.ac.jp/cef/akebono.cgihttp://ergsc.stelab.nagoya-u.ac.jp/cef/akebono.cgi

Digital DataDigital Data Instrument dataInstrument data

RDM (Plot & ASCII @ISAS DARTS)RDM (Plot & ASCII @ISAS DARTS) http://www.darts.isas.jaxa.jp/stp/akebono/RDM.htmlhttp://www.darts.isas.jaxa.jp/stp/akebono/RDM.html

VLF (CDF @Kanazawa Univ.)VLF (CDF @Kanazawa Univ.) https://akebono-vlf.db.kanazawa-u.ac.jp/https://akebono-vlf.db.kanazawa-u.ac.jp/

PWS (CDF @ISAS DARTS)PWS (CDF @ISAS DARTS) http://www.darts.isas.jaxa.jp/stp/akebono/PWS.htmlhttp://www.darts.isas.jaxa.jp/stp/akebono/PWS.html

Orbit (ASCII @ISAS DARTS)Orbit (ASCII @ISAS DARTS) Daily data Daily data

http://darts.isas.jaxa.jp/stp/data/exosd/orbit/daily/http://darts.isas.jaxa.jp/stp/data/exosd/orbit/daily/ Weekly data Weekly data

http://darts.isas.jaxa.jp/stp/data/exosd/orbit/weekly/http://darts.isas.jaxa.jp/stp/data/exosd/orbit/weekly/

Sample of the summary plot

PWS

VLFE-field

VLFB-field

RDM