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properties of Interplanetary shock events

This study explores the properties of interplanetary shock events, analyzing their geometry and associated particle dynamics using data from spacecraft such as GTL, ACE, WIND, and SOHO. It presents the shock normal determined by three distinct methods: Minimum Variance Analysis (MVA), CoPlanarity (CP), and satellite geometry. The research includes detailed time profiles of proton and electron particle data, along with magnetic field measurements to understand shock speed, angles, and behaviors during various incidents from 1994 to 2002.

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properties of Interplanetary shock events

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  1. properties of Interplanetary shock events including events on... 940221 040829 941022 040913 941029 041107_1 951018 041107_2 970515 041211 980801 980826 980924 000608 000715 010827 010925 011124 020801 020826 020907 021109 Kouta Nakata 2005 9/13

  2. 凡例 940221:position-direction of field shockのgeometry GTL,ACE,WIND,SOHOの位置 下の３つの方法から決定した shock normalに従ったショック面 横軸：方位角、縦軸：仰角 上流、下流の磁場+shock normalのベクトル shock normalは ・Minimum Variance Analysis (MVA) ・CoPlanarity (CP) ・衛星のgeometry でそれぞれ求めた。 ショック速度Vsは衛星系での値

  3. 凡例 横軸がUTのものは すべてshock 5h前-1h後 940221:Et-MGF-ft Ｅｔ図 （2004年は粒子データが出ていないためなし） 上段：電子 中段：プロトン 下段：SW 磁場データ 上段：絶対値（0-50nT） 中段：方位角 下段：仰角 ｆｔ図 (0.01-8.0Hz log scale) 上段：right-hand 中段：left-hand 下段：compressional

  4. 凡例 940221:particle data protonのtime profile 横軸：ＵＴ、縦軸：カウント数 2001年まではEPIC、2002年以降はEPAM、2004年はなし EPIC:195keV, 249keV, 320keV, 414keV, 539keV EPAM:56keV, 88.5keV, 149.5 keV, 248.5keV 445keV, 820keV, 1.485MeV, 3.330MeV LEP electronのtime profile 横軸：ＵＴ、縦軸：カウント数 エネルギーレンジは低い方から、 315.7eV, 519.9eV, 1.58keV 4.57keV, 13.2keV, 38.2keV 左：proton(EPIC or EPAM) 右：electron(LEP) のpower spectrum shock前 5h-4h、shock前 1h-0h、 shock後 0h-1h

  5. 940221:position-direction of field Vs=998 (vxB) Va=64.3 Ma:7.7 shock angle: 68

  6. 940221:Et-MGF-ft

  7. 940221:particle data

  8. 941022:position-direction of field Vs=388 (vxB) Va=49.8 Ma: 1.6 shock angle: 8.0

  9. 941022:Et-MGF-ft

  10. 941022:particle data

  11. 941029:position-direction of field Vs=591 (vxB) Va=32.4 Ma: 6.1 shock angle: 62

  12. 941029:Et-MGF-ft

  13. 941029:particle data

  14. 951018:position-direction of field Vs=369 (vxB) Va=28.3 Ma=2.4 shock angle: *86

  15. 951018:Et-MGF-ft

  16. 951018:particle data

  17. 970515:position-direction of field Vs= 503 Va=63.2 Ma=2.8 shock angle: 85

  18. 970515:Et-MGF-ft

  19. 970515:particle data

  20. 980501:position-direction of field Vs= 620 (geometry) Va= 69.4 Ma=2.1 shock angle: 63

  21. 980501:Et-MGF-ft

  22. 980501:particle data

  23. 980826:position-direction of field Vs= 904 (vxB) Va= 64.3 Ma= 6.7 shock angle: 88

  24. 980826:Et-MGF-ft

  25. 980826:particle data

  26. 980924:position-direction of field Vs= 759 (AtoG) Va= 94.7 Ma= 4.1 shock angle: 65

  27. 980924:Et-MGF-ft

  28. 980924:particle data

  29. 000608:position-direction of field Vs= 822 (AtoG) Va= 67.3 Ma= 4.4 shock angle: 32

  30. 000608:Et-MGF-ft

  31. 000608:particle data

  32. 000715:position-direction of field Vs= 930 (geometry) Va= 91.6 Ma= 6.7 shock angle: 47

  33. 000715:Et-MGF-ft

  34. 000715:particle data

  35. 010827:position-direction of field Vs= 532 (vxB) Va= 60.5 Ma= 2.5 shock angle: 52

  36. 010827:Et-MGF-ft

  37. 010827:particle data

  38. 010925:position-direction of field Vs= 663(geo) Va= 65.0 Ma= 8.2 shock angle: 49

  39. 010925:Et-MGF-ft

  40. 010925:particle data

  41. 011124:position-direction of field Vs= 1413 (geo) Va= 58.5 Ma= 9.2 shock angle: *89

  42. 011124:Et-MGF-ft

  43. 011124:particle data

  44. 020801:position-direction of field Vs= 469 (geo) Va= 98.2 Ma= 1.8 shock angle: 10

  45. 020801:Et-MGF-ft

  46. 020801:particle data

  47. 020826:position-direction of field Vs= 320 (geo) Va= 53.8 Ma= 1.7 shock angle: 85

  48. 020826:Et-MGF-ft

  49. 020826:particle data

  50. 020907:position-direction of field Vs= 563 (geo) Va= 73.9 Ma= 4.7 shock angle: *84

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