**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.*

**Figure
4.19** ZY
field line tracing of the magnetic field in the region of
Ganymede for the G2 encounter. The coordinates are given in
the aberrated frame which is defined by a rotation about the
GSII x axis by an angle of 10º, and then a rotation about
the new z axis by -33º. The projection of the trajectory of
Galileo is shown by the line with open circles. The
first circle represents the position of Galileo at 18:40:00
with each consecutive circle separated by 5 minutes in time.

**Figure 4.20** ZX
projection field line tracing of the magnetic field in
the region of Ganymede for the G2 encounter. The coordinates
are given in the aberrated frame which is defined by a
rotation about the GSII x axis by an angle of 10º, and then
a rotation about the new z axis by -33º. The projection of
the trajectory of Galileo is shown by the line with open
circles. The first circle represents the position of
Galileo at 18:40:00 with each consecutive circle separated
by 5 minutes in time.

**Figure 4.21** ZY
field line tracing of the magnetic field in the region of
Ganymede for the G2 encounter. The frame is given in
GSII coordinates. The projection of the trajectory of
Galileo is shown by the line with open circles. The
first circle represents the position of Galileo at 18:40:00
with each consecutive circle separated by 5 minutes in
time.

**Figure 4.22** ZX
field line tracing of the magnetic field in the region of
Ganymede for the G2 encounter. The frame is given in
GSII coordinates. The projection of the trajectory of
Galileo is shown by the line with open circles. The
first circle represents the position of Galileo at 18:40:00
with each consecutive circle separated by 5 minutes in
time.

**Figure 4.23** ZY
projection field line tracing of the magnetic field in the
region of Ganymede for the G7 encounter. The
coordinates are given in the aberrated frame which is
defined by a rotation about the GSII x axis by an angle of
30º, and then a rotation about the new z axis by 40º. The
projection of the trajectory of Galileo is shown by the line
with open circles. The first circle represents the
position of Galileo at 06:50:00 with each consecutive circle
separated by 5 minutes in time.

**Figure
4.24** ZX
projection field line tracing of the magnetic field in the
region of Ganymede for the G7 encounter. The
coordinates are given in the aberrated frame which is
defined by a rotation about the GSII x axis by an angle of
30º, and then a rotation about the new z axis by 40º. The
projection of the trajectory of Galileo is shown by the line
with open circles. The first circle represents the
position of Galileo at 06:50:00 with each consecutive circle
separated by 5 minutes in time.

**Figure
4.25** ZY
field line tracing of the magnetic field in the region of
Ganymede for the G7 encounter. The frame is given in
GSII coordinates. The projection of the trajectory of
Galileo is shown by the line with open circles. The
first circle represents the position of Galileo at 06:50:00
with each consecutive circle separated by 5 minutes in time.

**Figure
4.26** ZX
field line tracing of the magnetic field in the region of
Ganymede for the G7 encounter. The frame is given in
GSII coordinates. The projection of the trajectory of
Galileo is shown by the line with open circles. The
first circle represents the position of Galileo at 06:50:00
with each consecutive circle separated by 5 minutes in time.

Return to dissertation table of contents page.

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Galileo Table of Contents Page.

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Technologies Home Page.

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.