Marble/C3/Satellites-and-Eclipses/English

Visual Cue	Narration
Slide Number 1 Title slide	Welcome to this Spoken Tutorial on Satellites and Eclipses.
Slide Number 2 Learning Objectives	In this tutorial we will learn about, Satellites Eclipses Configure satellites and eclipses
Slide Number 3 System Requirements	To record this tutorial, I am using, Ubuntu Linux OS, version 16.04 Marble version 1.12.20 and A working Internet connection. The process demonstrated in this tutorial is identical in, Ubuntu Linux OS, version 18.04 Marble version 2.2.20
Slide Number 4 Pre-requisites https://spoken-tutorial.org	To practise this tutorial, learner should be familiar with Marble interface. For the prerequisite Marble tutorials, please visit this site.
	We will begin with satellites.
Slide Number 5 Satellites	A satellite is an object in space that orbits around a bigger object. An orbit is a regular, repeating path that an object takes around another object.
Point to the default Atlas view.	I have opened the Marble interface in the default Atlas view.
Right-click select Hide from context menu.	I will hide overview map, compass and scale bar plugins. I will drag and place the windrose at a convenient location.
Go to View menu and click on Stars option.	I will disable the view of stars for clarity. Go to View menu and click on Stars option.
Go to View menu and select Online services. From the sub menu select Satellites option.	Again go to View menu and select Online Services. From the sub-menu select Satellites option.
Point to the satellites.	Observe that a number of satellites appear on the interface. Satellites will appear only if you are connected to the internet.
Rotate globe. Point to different satellites.	Let us rotate the globe to see different satellites. Each satellite has pivoted on the globe based on its coordinates.
Locate satellite Point to context menu.	I will locate one of the satellites and click on it. You may locate any one of the satellites. A context menu opens.
Select the name of the satellite. Point to satellite information sheet	From the context menu select the name of the satellite. Satellite information sheet opens. The satellite’s name and NORAD ID are shown at the top of the sheet.
Point to Coordinates table. Point to Longitude, Latitude and Altitude of the satellite. Point to scroll bar and scroll down.	Next we have Coordinates table. This table shows information about Longitude, Latitude and Altitude of the satellite. Information sheet has a scroll-bar to scroll to the bottom of the sheet.
Point to Geometry of a satellite orbit. Point to Orbital Data.	Below the table Geometry of a satellite orbit is shown. Next we have Orbital Data.
Point to Perigee, Apogee, Inclination, Period and semi major axis.	It shows Perigee, Apogee, Inclination, Period and Semi major axis. Let us close this information sheet.
Click on the satellite. From the context menu select Display orbit option. Orbit of the satellite appears on the globe.	Again click on the satellite. From the context menu select Display orbit option. Orbit of the satellite appears on the globe.
Rotate and show the orbit.	I will rotate the globe to show the orbit.
Click on the satellite. From the context menu un-check Display Orbit option.	Now let us hide the orbit. Again click on the satellite. From the context menu un-check Display orbit option.
Click on the satellite. From the context menu select Keep centred option.	Let us mark the location of the satellite. Click on the satellite. From the context menu select Keep centred option. Position of the satellite is shown by a position tracking arrow.
Click on Location panel. Click on the drop-down button below Position Tracking. Select Disabled option.	To disable the position tracking, click on Location panel. In the panel, click on the drop-down button below Position Tracking. Select Disabled option.
Go to the search panel.	Now we will find a particular satellite, Insat 3D. Go to the Search panel.
Type Insat 3D in the search box press enter key on the keyboard. Point to Insat 3D on the globe	Type Insat 3D in the search box and press Enter. Notice that a cross hair appears on the location of Insat 3D on the globe.
Slide Number 6 Assignment	As an assignment, Explore more about different satellites of the Earth.
Go to View menu. Select Online services option.	Let us disable all the satellites. Go to View menu and select Online Services option.
From the sub menu un-check Satellites option. All satellites have disappeared from the interface.	From the sub menu click on Satellites option. All satellites have disappeared from the interface.
Cursor on the interface.	Now let's configure satellites plugin.
Go to Settings menu. Click on the Configure Marble Virtual Globe option. Configure window opens.	Go to Settings menu and click on Configure Marble Virtual Globe option. Configure window opens.
From the window box select Plugins menu.	From the window, select Plugins tab.
Scroll down to the bottom and locate satellites plugin.	Let us scroll down to the bottom and locate Satellites plugin.
Click on the Configure button corresponding to satellites plugin.	Click on theConfigure button corresponding to Satellites plugin.
Satellites Configuration Marble window opens.	Satellites Configuration Marble – Marble Virtual Globe window opens.
Click on the Activate plugin button.	Click on theActivate Plugin button in the window. Satellites Configuration is activated.
Point to two tabs. Satellites and Data sources. Satellites tab has opened by default.	This window has two tabs. Satellites and Data sources. Satellites tab has opened by default.
Point to Earth checkbox. Point to Special interest satellite, weather and earth resources satellite, communication satellite and others.	Under Earth we have different sections and sub-sections. Notice that all the satellites are selected by default.
Click on Reset button. Point to the check-boxes. Click on the OK in the window.	I will click on Reset button available at the bottom left corner of the window. This will un-check all the satellite check-boxes except the 100(or so) Brightest. Click on theOK in the window.
Click on the OK button in the Configure window.	Click on theOK button in the Configure window.
Point to the satellites.	Observe that you will see only the 100(or so) Brightest satellites.
Cursor on the interface.	Now we see the satellites of Mars.
Go to File menu and select Download Maps. Point to the dialog box. Scroll down the box.	Go to File menu and select Download Maps. Marble- Install Maps – Marble Virtual Globe dialog box opens. Scroll down the box.
Select Mars Topography. Click on Install button to install it. Click on Close to the close the dialog box.	Select Mars Topography. Click on Install button to install it. Click on Close to the close the dialog box.
Go to theMap View panel. Click on Earth drop-down button, select Venus.	Go to the Map View panel. Click on Earth drop-down button and select Mars.
Point to the satellites of Mars. Maven Mars Express Phobos Mangalyaan.	We can see the satellites of Mars. I will rotate the globe to see the satellites of Mars.
Slide Number 7 Assignment	As an assignment, Download Venus Topography map Find the Venus Express satellite of Venus Open its information data sheet Display its orbit and Track its position
Go to Mapview panel, click on the Mars drop-down button and select Earth.	Go to Mapview panel, click on the Mars drop-down button and select Earth.
	Let us disable the satellites. Go to View menu and select Online services. From the sub menu select Satellites option.
	Now let us learn about Eclipses.
Slide Number 8 Eclipse	An eclipse occurs, when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another object.
	Let us now see the eclipses formed in various parts of the world.
Go to View menu and select Eclipses >> Browse Eclipses.	Go to View menu and select Eclipses. Again Go to View menu and select Browse Eclipses.
Point to the window.	Eclipse Browser – Marble Virtual Globe window opens.
Point to Start, End, Type and Magnitude. Drag the column separator. Point to the Type column.	Window has a table with the following columns. Start, End, Type and Magnitude. Drag the column separator to see the information clearly. Observe that only solar eclipses for the year are shown in the table.
Point to the text field. Click on the plus and minus button.	Show eclipses for year: text box, has a plus and minus button. By default year 2020 is shown. Click on the button to see eclipses in the corresponding years.
Point to the eclipses. Select the first eclipse and click on Go To Selected Eclipse button.	Table shows two solar eclipses that occurred in the year 2020. Select the first eclipse and click on Go To Selected Eclipse button.
Point to the shaded parts.	The places of the world where eclipse was seen are shown as shaded parts.
Go to View menu and select Browse Eclipses. In the window select the 2nd eclipse. Click onGo To Selected Eclipse button.	Similarly we can see the second eclipse. Go to View menu and select Browse Eclipses. In the window select 2nd eclipse and click on Go To Selected Eclipse button.
Point to the shaded parts.	Here we can see the shaded parts where eclipse was seen.
Click onView menu and selectEclipses.	To hide the shaded parts click on View menu and select Eclipses.
Go to View menu and select Browse Eclipses.	Again go toView menu and selectBrowse Eclipses.
Click on the Settings button on the top right corner of the window.	Click onSettings button at the top right corner of the window
Point to Eclipses Configuration window.	Eclipses Configuration window opens.
Point to the tabs.	Window has View and Remainder tabs. View tab is selected by default.
Point to the section. Click on Enable Lunar Eclipses checkbox. Point to the check-boxes.	In the View Options section, click on Enable Lunar Eclipses check-box. Leave the other check-boxes as default.
Click on OK button. Point to Type column.	Click on OK button. Observe that of lunar eclipses are added to the table.
Point to the globe.	In this version of Marble only solar eclipses can be shown as shaded regions.
Slide Number 9 Assignment	As an assignment, Using Show eclipses for year: text box change the years to 2018 and 2019. Observe the solar eclipses in these years.
Slide Number 10 Summary	Let us summarize. In this tutorial we have, learnt about, Satellites Eclipses Configure satellites and eclipses
Slide Number 11 Spoken tutorial workshop	The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.
Slide Number12 Spoken Tutorial workshops	TheSpoken Tutorial Project team: conducts workshops and gives certificates. For more details, please write to us.
Slide Number 13 Forum for specific questions	Please post your timed queries in this forum.
Slide Number14 Acknowledgement Spoken Tutorial Project is funded by, National Mission on Education through ICT and Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching, MHRD, Government of India.	Spoken Tutorial Project is funded by, MHRD, Government of India. This tutorial is contributed by Viji Nair and Madhuri Ganapathi from IIT Bombay. Thank you for watching.

Contributors and Content Editors

Madhurig, Nancyvarkey, PoojaMoolya, Vijinair