The Missile Object
The Missile object models the properties and behavior of a vehicle following an elliptical path that begins and ends at the surface of the central body. Select one or more of the following to model a missile, impose constraints, and define the missile's subobjects:
- Basic properties
- 2D Graphics properties
- 3D Graphics properties
- Constraints
- RF properties
- Laser Properties
- Subobjects
Basic Properties
Property | Description | ||||||||||
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Trajectory | Define the path that the missile will follow by selecting and defining one of the following propagators:
You can also position the missile by clicking anywhere in the 2D Graphics window. If you use the mouse in the 2D Graphics window to specify the position of the missile, be sure that the Trajectory properties page is open. You do not need to click or after you have positioned the object in the 2D Graphics window. You will need to click or if you have made any other changes on the Trajectory properties page. For more information on setting object properties using the mouse, see Mouse Shortcuts. If you are interested in end-to-end trajectories including boost phase, missile intercepts, and/or missile defense architecture performance, you should explore Missile Tool Kit (MTK). For designers and analysts of ballistic missiles, kinetic interceptors, sensor systems, and integrated missile defense architectures, MTK provides key analysis capability via user interfaces that minimize expertise requirements without sacrificing modeling fidelity. |
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Attitude | Define an attitude profile for the missile. | ||||||||||
Lighting | Define the eclipse central body list used for lighting computations. | ||||||||||
Ground Ellipses | Add a set of ellipses for the missile. | ||||||||||
EOIR Shape | Specify EOIR image generation properties for the missile. | ||||||||||
EOIR Stage | Specify EOIR image properties for a single stage missile. | ||||||||||
SEET |
Use SEET property pages to enter values that affect calculations involving the space environment as modeled by the STK Space Environment and Effects Tool (SEET):
SEET radiation computations are also affected by scenario-level settings. |
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Description | Record useful information about the missile. |
2D Graphics Properties
Property | Description |
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Attributes | Define color, line style, and other graphics characteristics for the missile, and opt whether to inherit or override global attributes defined at the Scenario level. |
Trajectory | Define the graphical display of the missile's trajectory in the 2D Graphics window. |
Contours | Define elevation angle contours in the 2D Graphics window. |
Range | Define range contours representing the various regions of the surface that can see an object at the specified level. |
Lighting | Define the graphical display of lighting conditions for the missile during animation. |
Swath | Calculate and graphically display swath for the vehicle. |
Ground Ellipses | Set the display graphics for a ellipse set defined on the Basic Ground Ellipse page for the missile. |
SEET Environment |
Set parameters that affect the display of the magnetic field and the contours of the South Atlantic Anomaly (SAA) in relation to the vehicle, as modeled by the STK Space Environment and Effects Tool. |
Radar Cross Section | Define the 2D contour graphics for the desired frequency. |
3D Graphics Properties
Property | Description |
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Trajectory | Control the display of missile trajectories. |
Trajectory System | Set the reference frame or frames used for displaying vehicle trajectories. |
Attitude Sphere | The Attitude Sphere is a visualization aid that when combined with vector display constitutes a powerful tool for displaying the object's attitude and for tracking attitude changes over time. |
Vector | Control the display of vectors and other geometric elements related to the missile. |
Proximity | Control the position of the missile in the 3D Graphics window. |
Drop Lines | Define the display of lines between a missile's trajectory (the actual path that a missile follows) and the central body. |
Covariance | Define the graphical display of a 3D ellipsoid. |
Model | Specify a model to represent the missile in the 3D Graphics window, and then scale the model and adjust the position of any model articulations. |
Offsets | Position a model and marker representing a missile in the 3D Graphics window by offsetting the object from its reference frame. |
Contours | Define elevation angle contours in the 3D Graphics window. |
Range | Display range contours for the missile. Range contours display in accordance with the values set for the 3D Graphics Range Contours for the object. |
Model Pointing | Point parts of the missile model toward a target, such as the Sun or Earth. |
Data Display | Display dynamic data for the missile in the 3D Graphics window. |
Vapor Trail | Add a vapor trail to the missile. |
Radar Cross Section | Control the 3D display of RCS contour lines. |
Constraints
Property | Description |
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Basic | Impose a variety of standard access constraints (azimuth and elevation angle and rate, range and range rate, propagation delay, etc.) from the missile to another object. |
Sun | Impose a variety of access constraints from the missile to another object based on the position of the Sun and the Moon. |
Temporal | Impose time-based access constraints from the missile to another object. |
Advanced | Impose several advanced access constraints (grazing angle and altitude, doppler cone angle, solar beta angle, etc.) from the missile to another object. |
Zones | Use inclusion and exclusion zones to define areas where access is or is not allowed. |
Targeting | Define the relationship between the missile and its target in terms of cross-track range, in-track range and squint angle. |
Vector | Constrain access computations with respect to any valid vector or angle. |
Special | Special access constraints are defined in terms of geostationary belt exclusion, height above horizon, terrain grazing angle, and exclusion of other scenario objects. |
CAT | Turn off the time slip constraint that is automatically set by the Close Approach Tool when its launch window capability is utilized. |
Search/Track |
Radar Search/Track Constraints property pages enable you to enter minimum and maximum values for several parameters. You can also choose from the following Doppler options:
You can extend the STK Radar SAR computation and constraints with the Search/Track plugin constraint. See Search/Track User Plugin. |
SAR |
SAR property pages enable you to impose a variety of constraints on synthetic aperture (SAR) radar.
You can extend the STK Radar SAR computation and constraints with the Search/Track plugin constraint. See SAR User Plugin. |
Plugins | An interface is provided for defining custom constraints in terms of scripts you supply created in VBScript and MATLAB. | SEET | Special access constraints are imposed based on relationships of the vehicle with, and the effects of, the space environment as modeled by the STK Space Environment and Effects Tool (e.g., debris and meteroid fluxes, radiation fluxes, vehicle temperature, magnetic field, etc.). |
RF Properties
Property | Description |
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Environment | Apply environmental factors that affect the performance of a communications link or a radar system. |
Radar Cross Section | Specify the radar cross section (RCS) parameters. |
LASER Properties
Property | Description |
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Environment | Apply environmental factors that affect the performance of a laser communications link. |