Transcript Current Status of ERG Project

Van Allen Probes SWG 2014/09
Current status of
ERG project
A. Matsuoka, Y. Miyoshi, I. Shinohara,
T. Takashima, K. Asamura, and
ERG project team
ERG Project Team
ERG satellite (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
Mission Status & Schedule
FY 2009
-
Mission Definition Review.
System Requirement Review.
FY 2011
-
System Definition Review
FY 2012
-
Preliminary Design Review
FY 2013
-
Critical Design Review
-
Development of the flight model/integration test
-
Launch of the satellite
FY 2014-2015
2016
The ERG ground networks
Ground Monitor of Fields / Waves
・Radar Network: SuperDARN network
・Magnetometer Network：MAGDAS, 210MM, STEL, Antarctica Network
(Flux gate/search coil)
・VLF wave Network：Canada, Antarctica Network
Ground Monitor of plasma distributions and precipitations
・Optical Imager Network：OMTIs (Canada, Norway, Siberia), Antarctica
・Riometer Network：Canada, Antarctica
・ LF-standard radio waves：Canada, Norway
The ERG Science Center
ERG-satellite data
ERG-ground data
ERG-modeling data
ERG –science center
All science data
are archived with CDF
IDL/SPEDAS is a project
data 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 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
Zgsm
Ygsm
THEMIS
THEMIS
Van Allen Probes
Cluster
Cluster
Xgsm
Geotail
Xgsm
Conjunction 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
Van Allen Probes
Southern Hemisphere
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Data of the ERG ground network observations have been archived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
collaboration
Ayako Matsuoka
Akebono Project Manager
ISAS/JAXA
10
Akebono (EXOS-D)
Launch : Feb 22 1989
Radiation monitor
data in 2013
Projection to the
magnetic
meridional plane
12
Akebono Data Opened to the Public
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Available Data
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RDM : Radiation monitor
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VLF : Low-frequency plasma waves
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RDM measures the electron flux in three energy ranges (0.3-0.95, 0.95-2.5,
>2.5 MeV)
Only the data of the energy >2.5MeV are open to the public.
MCA (multi-channel analyzer) data are open to the public.
E×1 & B×1, 16 channels each, <17.8kHz
PWS : High-frequency plasma waves
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Dynamic spectra are open to the public.
E×1, 20kHz ~ 5MHz
Akebono Data Opened to the Public
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Summary Plots (From Oct/2012 to July/2014)
 http://ergsc.stelab.nagoya-u.ac.jp/cef/akebono.cgi
Digital Data
 Instrument data
 RDM (Plot & ASCII @ISAS DARTS)
 http://www.darts.isas.jaxa.jp/stp/akebono/RDM.html
 VLF (CDF @Kanazawa Univ.)
 https://akebono-vlf.db.kanazawa-u.ac.jp/
 PWS (CDF @ISAS DARTS)
 http://www.darts.isas.jaxa.jp/stp/akebono/PWS.html
 Orbit (ASCII @ISAS DARTS)
 Daily data http://darts.isas.jaxa.jp/stp/data/exosd/orbit/daily/
 Weekly data http://darts.isas.jaxa.jp/stp/data/exosd/orbit/weekly/
Sample of the
summary plot
PWS
VLF
E-field
VLF
B-field
RDM