
Launch a Satellite
STK provides 6 different vehicle types -- Satellite, Launch
Vehicle, Missile, Aircraft, Ship, and Ground Vehicle -- that you
can use to model your land, sea, air, or space mission. In this
simple scenario, you will just add a satellite.
Define the Orbit
- Select
Satellite from the Scenario Objects.
- Select
Orbit Wizard from the Select A
Method list.
- Click Insert...
- .
- Select Critically Inclined as the Type.
- Set the Satellite Name to MEO.
- Enter 15000 km in the Apogee Altitude
field.
- Enter 1500 km in the Perigee Altitude
field.
- Click OK to accept the defaults. The wizard
closes and the new satellite appears in the 2D and 3D Graphics
windows.
Now look at the 2D and 3D displays. On the 2D map, in addition
to the marker representing the satellite, the satellite's ground
track appears. In the 3D Graphics window you can see the orbit
path.
The Orbit Wizard provides an easy way to define many different
satellite orbits. Before continuing your tour, you might want to
look at the greater range
of possibilities offered by the Orbit page of the satellite's
Basic properties.
Make it Move!
Now it is time to enter the 4th dimension and animate the
scenario:
- Select the 2D Graphics window, and then click
in the animation toolbar. The satellite marker will move along its
ground track.
- To speed up the animation, click
; to slow it down, click
.
- You can pause (
) the animation at any time, or
step it forward (
) or
backward (
).
- When you finish, click
to reset the scenario.
- Now select the 3D Graphics window and, using the above buttons,
animate the scenario and watch the satellite move around its orbit
path.
Now you can improve the display by changing 2D and 3D Graphics settings.
