View source for Marble/C3/Satellites-and-Eclipses/English

{|border=1
| <center>Time</center>
| <center>Narration</center>

|-
||  '''Slide Number 1 '''

'''Title slide '''
|| Welcome to this SpokenTutorial 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 1.12.20and
*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 take s 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 pivotedon 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 has  '''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 uncheck '''Display Orbit''' option.


||   Now let us hide the orbit

Again click on the satellite.

From the context menu uncheck '''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.

||   Next 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 key on the keyboard.

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.

||  Now let us disable all the satellites.

Go to '''View''' menu and select '''Online Services''' option.
|-
||  From the sub menu uncheck Satellites option.

All satellites have disappeared from the globe.
||  From the sub menu click on''' Satellites''' option.

All satellites have disappeared from the interface.
|-
||  Cursor on the interface.
||  Now let us '''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 MarbleVirtual 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 the'''Configure''' button corresponding to'''Satellites plugin.'''
|-
||  '''Satellites Configuration Marble''' window opens.

||  '''Satellites Configuration Marble''' – mar'''b'''le virtual glo'''b'''e window opens.

|-
||  Click on the '''Activate plugin '''button. 

||  Click on the'''Activate Plugin''' buttonin 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 checkboxes.
Click on the '''OK''' in the window.
||  I will click on'''Reset '''button available at the bottom left corner of the window.


This will uncheck all the satellite checkboxes except the'''100(or so) Brightest.'''

Click on the'''OK''' in the window.
|-
||  Click on the '''OK''' button in the Configure window.
||  Click on the'''OK''' 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 dialogue box.

Scroll down the box.
||  Go to '''File''' menu and select '''Download Maps.'''
'''Marble- Install Maps – Marble Virtual Globe''' dialogue box opens.

Scroll down the box.

|-
||  Select '''Mars Topography'''.

Click on '''Install''' button to install it.


Click on '''Close''' to the close the dialogue box.
||  Select '''Mars Topography'''.

Click on '''Install''' button to install it.


Click on '''Close''' to the close the dialogue box.
|-
||  Go to the'''Map 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
Mangalyan.
|  We can see the satellites of '''Mars'''.

I will rotate the globe to see the satellites of Mars.

|-
||  '''SlideNumber 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 Marsdrop-down button and select '''Earth. '''
||  Go to Mapview panel, click on the Marsdrop-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.
|-
||  '''SlideNumber8'''

'''Eclipse'''

||   An eclipse occurs, when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body.
|-
||  
||   Let us now see the eclipses formed in various parts of the world.
|-
||   Go to '''View''' menu and select 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 fox, 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 2<sup>nd</sup> eclipse.

Click on'''Go To Selected Eclipse '''button.
||  Similarly we can see the second eclipse.

Go to View menu and select Browse Eclipses.

In the window select 2<sup>nd</sup> 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 on'''View''' menu and select'''Eclipses'''.
||  To hide the shaded parts click on '''View''' menu and select '''Eclipses'''.
|-
||  Go to '''View''' menu and select Browse Eclipses.

||  Again go to'''View''' m enu and select'''BrowseEclipses'''.



|-
||  Click on the '''Settings''' button on the top right corner of the window.
||  Click on'''Settings''' button at the top right cornerof 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''' checkbox.
Leave the other check-boxes as default.
|-
||  Click on '''Apply''' button and '''OK''' button.

Point to Type column.
||  Click on '''Apply '''button and then 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 Number9'''

'''Assignment'''
||  As an assignment,

Using'''Show eclipses for year:''' text fox 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'''
||  The'''Spoken Tutorial Project '''team:

conducts workshops and gives certificates.

For more details, please write to us.
|-
||  '''Slide Number 13'''


Forum for specific questions
| style="border:1pt solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.199cm;padding-right:0.191cm;color:#000000;" | 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.
|-
|}