Page Contents

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1.   Introduction

2.   Satellite Tracks

3.   Jovian Sattellite Closeup Window

4.   Great Red Spot Transit Times

5.   Satellite Phenomena Times

6.   Changing Optical View

7.   Animation

8.   Related Solar System Software

9.   Download Now

Introduction

JupSat Pro (Jupiter Software) provides a range of information on Jupiter and graphically displays the planet (including its Great Red Spot) and the positions of its four main satellites, Io, Europa, Ganymede and Callisto (in real time) and their shadows.

Features

Satellite Tracks

Clicking the paw-prints icon calls up a diagram that displays the satellite tracks diagram for the selected month. The tracks calculations are based on your Local Time.

Dates are listed down the side of the diagram. Jupiter is represented by the parallel white lines down the middle of the diagram. The colours of the tracks are the same as those used for their corresponding satellites on the side and plan view windows: Io - White; Europa - Yellow; Ganymede - Orange; Callisto - Light Blue.

If the month or year is changed on the main JupSat Pro window, the Tracks diagram will automatically update to show the correct tracks for the new date.

The printer icon at the top left of the window allows you to print out the Satellite Tracks diagram.

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Jupiter software includes:

• Calculates times of satellite eclipses by Jupiter's shadow
• The Satellite Tracks diagram now matches what would be seen through the selected optics (previously, the diagram showed the tracks as seen through a Newtonian relector)
• The Satellite Tracks diagrams can now be printed out
• The Great Red Spot Transit times can now be printed out
• Calculates and displays the positions of Jupiter's four main (Galilean) moons - Io, Europa, Ganymede and Callisto for any date and time.
• Displays side-on and plan views of Jovian system
• The display can be changed to support the view as seen through different optical configurations
• The position of the Great Red Spot is shown for the selected time and date
• Shadows of the satellites are displayed crossing Jupiter's disk
• The displays can be animated to show the movement of the satellites, their shadows and the Great Red Spot
• The displays can be zoomed so as to see satellite phenomena in greater detail
• Times of Great Red Spot transits are calculated for the selected month
• A diagram of the satellite tracks for the selected month can be viewed. Great for checking Jupiter satellite positions.
• Times of satellite phenomena (Transits, occultations, etc.) are calculted for the selected date
• Compass directions show the orientation of Jupiter and its satellites depending on what hemisphere you live in and what optical configuration you have selected
• View rotating maps of each of the four satellites
• Displays the Rise, Transit and Set times of Jupiter for your location so you can make the most of your observing opportunities
• Displays the position of Jupiter (in RA/Dec and Alt/Az) along with its magnitude and distance amongst other data
• Numeric distances (in Jupiter radii) for each of the satellites are displayed
• Data for satellites that are transiting or being occulted by Jupiter are displayed in different colours for easy identification

Clicking the eye icon calls up a menu that lets you display a rotating satellite in place of the plan-view window. This lets you see what the Jovian satellites look like in closeup.

There's also an option to display Jupiter in this window, This display is designed to show where the Red Spot is on Jupiter (as seen from Earth). Jupiter itself does not rotate in the way that the satellite images do. The Jupiter view is tied to Jupiter as it appears in the Side-View window and is, essentially, a greatly magnified view of Jupiter from that window. However, if you turn on the animation feature, Jupiter in this window will rotate synchronously with Jupiter in the Side-View window.

The last option in the menu lets you return to the Plan-View.

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Plan observations of Jupiter and simulate Jupiter, its satellites and Great Red Spot

Great Red Spot Transit Times

Clicking the red circle icon produces a table of GRS transit times for the selected month and year. Times listed are in Local Time.

The Great Red Spot's longitude changes over time and will need to be updated at some stage. The new value is entered into the top pane beside the Red Spot Longitude (System II) heading. Jovian System II longitudes are used within the calculations.

Dates for every day in the month are printed down the left of the diagram. Days are shown against alternate black and dark-grey backgrounds. If the month or year is changed on the main JupSat Pro window, the GRS Transit screen will automatically update with the transit times for the new month.

The printer icon at the top left of the window allows you to print out the Great Red Spot Transit times.

The Great Red Spot transit times is a very nice feature of this Jupiter software!

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Clicking the icon of Jupiter with a satellite produces a table of satellite phenomena for the selected date. Times listed are in Local Time.

The data is displayed in four columns: date, satellite, time of phenomena and phenomena description. If the day, month or year is changed on the main JupSat Pro window, the Phenomena screen will automatically update with the satellite phenomena for the new date. Great for checking jupiter satellite positions.

When viewing Jupiter through binoculars, it is 'the right way up'; i.e. it's orientation is the same in binoculars as it appears in the sky. When looking through an astronomical telescope, however, Jupiter is inverted (upside down). Four icons on the toolbar represent the view that JupSat Pro is displaying:

Binoculars:	These represent the 'normal' view
Telescope:	Represents the view through an astronomical telescope (upside-down and flipped left to right)
Star Diagonal:	Represents the view through a telescope that uses a diagonal (upside-down)
Telescope With Star Diagonal:	Represents the view as seen through a telescope that flips the view left to right only.

The view can be cycled by clicking the currently active icon.

To the left of the JupSat Pro title are three icons - a fast forward icon, a stop icon and a clock icon. The Fast-Forward icon puts JupSat Pro into animation mode. Calculations are performed for the animation interval specified on the top numeric pane (this defaults to 5 minutes). You can change the interval value to slow down or speed up the animation of the satellites' movement or change the interval type from minutes to seconds to really slow down what's happening.

Jupiter also rotates in the animation so you can see the Great Red Spot moving as well as the satellites.

To stop the animation from running, either click the Stop icon (the time and date will remain at the values where the animation was stopped) or click the Clock icon (the time and date will return to the current time and JupSat Pro will return to realtime mode).

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Plan observations of Jupiter and simulate Jupiter, its satellites and Great Red Spot