CASSINI In Space

 

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GALILEO

Investigation of the Magnetosphere of Ganymede with Galileo's Energetic Particle Detector


Ph.D. dissertation by Shawn M. Stone, University of Kansas, 1999.

 

Copyright 1999 by Shawn M. Stone.  Used with permission.

 

List of Figures (Part 3, Chapters 7-8)

 

  • Feature G2-18:56:31, the Addition of Corotational Electric Field
    • Figure 7.1 A: Rate profile of model M1 energy channel A4 at .85 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.2 A: Rate profile of model M1 energy channel E1 at .25 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.3 A: Rate profile of model M1 energy channel E1 at .5 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.4 A: Rate profile of model M1 energy channel E3 at .5 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.5 A: Rate profile of model M1 energy channel E3 at .85 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.6 A: Rate profile of model M1 energy channel F2 at .85 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.7 A: Rate profile of model M2 energy channel A4 at .85 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.8 A: Rate profile of model M2 energy channel E1 at .25 of full corotation for feature G2-18:56:31. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.9 A: Rate profile of model M2 energy channel E1 at .5 of full corotation. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.10 A: Rate profile of model M2 energy channel E3 at .5 of full corotation. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.11 A: Rate profile of model M2 energy channel E3 at .85 of full corotation. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.12 A: Rate profile of model M2 energy channel F2 at .85 of full corotation. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.13 Collimator pitch and phase scatter plot for the sector pointed out in Figure 7.2 for M1 E1 G2-18:56:31 subenergy 37 keV at .5 of full corotation.
    • Figure 7.14 Collimator pitch and phase scatter plot for the sector pointed out in Figure 7.2 for M1 E1 G2-18:56:31 subenergy 37 keV at .25 of full corotation.
    • Figure 7.15 A: Length of the radius vector from the center of Ganymede to the particle as a function of trace time in seconds for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.16 A: The X component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.17 A: Magnetic field at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: Magnetic moment at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.18 A: Velocity of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: Pitch angle of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.19 ZX projection of the trajectory for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.20 ZY projection of the trajectory for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.21 Model M1 E1 G2-18:56:31 subenergy 37 keV at .25 of full corotation. A: The parallel component of the speed of the E1 particle relative to the magnetic field vector as a function of trace time. B: The perpendicular component of the speed of the E1 particle relative to the magnetic field vector as a function of trace time.
    • Figure 7.22 A schematic representation of a magnetic field connected to Jupiter and Ganymede with corotational electric field permeating into the magnetosphere.
    • Figure 7.23 50% of full corotation. A: Length of the radius vector from the center of Ganymede to the particle as a function of trace time in seconds for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.24 50% of full corotation. A: The X component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.25 50% of full corotation. A: Magnetic field at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: Magnetic moment at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.26 50% of full corotation. A: Velocity of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1. B: Pitch angle of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M1 channel E1.
    • Figure 7.27 ZX projection of the trajectory for subenergy 37 keV sublook direction 1 for model M1 channel E1 at 50% of full corotation.
    • Figure 7.28 ZY projection of the trajectory for subenergy 37 keV sublook direction 1 for model M1 channel E1 at 50% of full corotation.
    • Figure 7.29 Model M1 E1 G2-18:56:31 subenergy 37 keV at .5 of full corotation. A: The parallel component of the speed of the E1 particle relative to the magnetic field vector as a function of trace time. B: The perpendicular component of the speed of the E1 particle relative to the magnetic field vector as a function of trace time.
    • Figure 7.30 Collimator pitch and phase scatter plot for the sector pointed out in Figure 7.9 for M2 E1 G2-18:56:31 subenergy 37 keV at .25 of full corotation.
    • Figure 7.31 Collimator pitch and phase scatter plot for the sector pointed out in Figure 7.9 for M2 E1 G2-18:56:31 subenergy 37 keV at .5 of full corotation.
    • Figure 7.32 25% of full corotation. A: Length of the radius vector from the center of Ganymede to the particle as a function of trace time in seconds for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.33 25% of full corotation. A: The X component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.34 25% of full corotation. A: Magnetic field at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: Magnetic moment at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.35 25% of full corotation. A: Velocity of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: Pitch angle of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.36 ZX projection of the trajectory for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.37 ZY projection of the trajectory for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.38 50% of full corotation. A: Length of the radius vector from the center of Ganymede to the particle as a function of trace time in seconds for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.39 50% of full corotation. A: The X component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: The Z component of the particle position in GSII coordinates for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.40 50% of full corotation. A: Magnetic field at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: Magnetic moment at the location of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.41 50% of full corotation. A: Velocity of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1. B: Pitch angle of the particle as a function of trace time for subenergy 37 keV sublook direction 1 for model M2 channel E1.
    • Figure 7.42 ZX projection of the trajectory for subenergy 37 keV sublook direction 1 for model M2 channel E1 at 50% of full corotation.
    • Figure 7.43 ZY projection of the trajectory for subenergy 37 keV sublook direction 1 for model M2 channel E1 at 50% of full corotation.
  • Feature G2-19:10:51, the Addition of Parallel Electric Field
    • Figure 7.44 A: Rate profile of model M1 energy channel E1 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.45 A: Rate profile of model M1 energy channel E1 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.46 A: Rate profile of model M1 energy channel E3 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.47 A: Rate profile of model M1 energy channel E3 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.48 A: Rate profile of model M1 energy channel F2 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.49 A: Rate profile of model M1 energy channel F2 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.50 A: Rate profile of model M2 energy channel E1 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.51 A: Rate profile of model M2 energy channel E1 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.52 A: Rate profile of model M2 energy channel E3 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.53 A: Rate profile of model M2 energy channel E3 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.54 A: Rate profile of model M2 energy channel F2 with an anti-parallel electric field of 10 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
    • Figure 7.55 A: Rate profile of model M2 energy channel F2 with an anti-parallel electric field of 50 mV. B: The pitch and phase angles are computed from the look direction of the EPD detector and the appropriate magnetic field vector R for real and S for simulated.
  • Figure 8.1 Plot of the surface magnetic field of Ganymede during the G2 encounter
  • Figure 8.2 Plot of the surface magnetic field of Ganymede during the G7 encounter

 

Figures, continued

 

 

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Updated 8/23/19, Cameron Crane

QUICK FACTS

Manufacturer: The Galileo Spacecraft was manufactured by the Jet Propulsion Laboratory, Messerschmitt-Bölkow-Blohm, General Electric, and the Hughes Aircraft Company.

Mission Duration: Galileo was planned to have a mission duration of around 8 years, but was kept in operation for 13 years, 11 months, and 3 days, until it was destroyed in a controlled impact with Jupiter on September 21, 2003.

Destination: Galileo's destination was Jupiter and its moons, which it orbitted for 7 years, 9 months, and 13 days.