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Japanese Contribution to THEMIS

Japanese Contribution to THEMIS. Masaki Fujimoto ISAS, JAXA. Geotail is alive and kicking!. Why not move to Cluster data? Yes we are, but that does not mean that Geotail data is not worth being inspected. Best coverage of the near-Earth plasma sheet,

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Japanese Contribution to THEMIS

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  1. Japanese Contribution to THEMIS Masaki Fujimoto ISAS, JAXA

  2. Geotail is alive and kicking! • Why not move to Cluster data? • Yes we are, but that does not mean that Geotail data is not worth being inspected. • Best coverage of the near-Earth plasma sheet, • leading to good statistical pictures, which are • good staring points for multi-s/c observations. • One more observatory in the magnetosphere is • still precious. But working on data from various spacecraft is tough. The toughest time is the survey period. It is time consuming since one would not want to miss good events but the goods are rare. Great desire to save time by not handling data from events that are not worth of it.

  3. DARTS.CEF • ConjunctionEventFinder • Developed by Y Miyasita (ISAS,JAXA) • A tool developed by a researcher who knows what researchers really want. • Enables easy search for • GT + CL,DSP,and S-DARN • conjunction events

  4. CEF darts.isas.jaxa.jp

  5. Type-in the date and time of your favorite event Check the location of other s/c, or FOV of S-DARN Check the research-level quality plots From GT, CL, DSP, and THEMIS.

  6. A demonstration • 20UT Nov 20 2001 Cluster vortex event • [Hasegawa et al., 2003]

  7. Another demonstration • GT BBF + DMSP • [Miyasita, Hori, Hosokawa et al., • in preparation]

  8. Earthward BBFs and Ionospheric flows (Geotail-SuperDARN) Miyashita, Hosokawa, Hori et al.

  9. Research-level quality moment plots fromTHEMIS is to be put here. GT,CL,DSP,THEMIS=11 s/c in the magnetosphere. How can you work efficiently without this tool?

  10. J-contribution to THEMIS • Geotail is alive and kicking. • THE TOOL for multi-spacecraft analyses. • What else?

  11. More data from Japan:Cameras in Resolute Bay and Athabasca(Shiokawa and Hosokawa)

  12. More data from Japan: REIMEI (Hirahara)ERG (Ono)

  13. Mode-S

  14. Mode-H

  15. Electron Energy-Time Spectrograms December 28, 2005 Electron Energy-Time Spectrograms and Aurora Images December 26, 2005 10 10 10 Electron (0 – 60 deg.) Energy (keV) 1 1 1 0.1 0.1 0.1 UT(09:MM:SS) 10:40 10:45 10:50 10:55 11:00 11:05 ILAT 74.2 73.9 73.7 73.4 73.1 72.8 MLT 0.9 0.8 0.8 0.8 0.8 0.8 0.01 0.01 0.01 Electron (60 – 120 deg.) Energy (keV) Electron (120 - 180 deg.) Energy (keV) UT(09:MM:SS) 10:40 10:45 10:50 10:55 11:00 11:05 ILAT 74.2 73.9 73.7 73.4 73.1 72.8 MLT 0.9 0.8 0.8 0.8 0.8 0.8

  16. THEMIS+others+REIMEI • Realizes event analyses from • the Cross-Scale Coupling point of view

  17. RMI Quick-Look Data As of now: Auroral Images ftp://ftp.darts.isas.jaxa.jp/pub/index/Level-1/ 　（No account ID/password required） Auroral Particle Spectrograms http://gedas.stelab.nagoya-u.ac.jp/gtl/REIMEIql/ （Account ID: index, password: aurora05） http://polaris.nipr.ac.jp/~ebihara/reimei/ （Account ID: reimei, password: index） Contact to： hirahara@rikkyo.ac.jp tsakanoi@pparc.geophys.tohoku.ac.jp asamura@stp.isas.jaxa.jp In near-future: Easier conjunction event search via DARTS.CEF

  18. ERG mission summary

  19. Pre-launch efforts optical stations SuperDARN radar in Hokkaido Ground-based network observations to middle-latittudes:ex., 2006.11-: SuperDARN rador in Hokkaido, 2007-2008: two optical stations in Siberia. GEMSIS phase I: 2007-2009: preparation for geospace modeling: Strategic emploment of PostDoctoral researchers are under planning. Inner magnetospheric observations by THEMIS will provide important observational constraints for the modelings.

  20. J-contribution to THEMIS • Geotail is alive and kicking. • THE TOOL for multi-spacecraft analyses. • Data from Cameras, REIMEI, and input from ERG pre-launch efforts. • What else?

  21. The next step • Having found a good event by DARTS.CEF, how would you want to proceed? • Maybe STARS is the tool.

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