New in SC Modeler 4.0

1. The Constellation Editor functionality and interface improvements, including the ability to use it jointly with the Constellation Design modules, i.e., to add constellations generated by these modules to a user-defined constellation or constellation defined by TLE records.

2. The SGP4/SDP4 orbit propagator. During simulation, the constellation view and all graphs and analysis results produced by the base module, the Network Topology tools, and the Network Traffic Analysis Module reflect changes caused by the orbital decay of satellites.

3. The Conjunction Visualization mode provides visualization of conjunction events identified by the Conjunction Forecast Web Service or any other product capable of producing an evaluation set of conjunction data. During the conjunction event simulation, the viewpoint remains directly above the primary conjunction object, and the image's scale changes continuously depending on the relative position of conjunction objects. You can review the intersection of error ellipsoids of conjunction objects and monitor the RIC (radial, in-track, cross-track) distances during close fly-by.

4. Improved support for importing large TLE files.

5. The "Maximum Number of Hops across the Satellite" constraint is enabled for all chain configurations. Intersatellite links can be completely disabled.

6. The Modeling Interval window functionality improvements.

7. The Real Time Mode stability improvement for a small time step.

8. New format of constellation analysis report files.

Conjunction Visualization

Importing TLE

9. The Orbital Elements, Position, and Velocity report can be generated anytime during simulations for the Two-Body Keplerian, J2 Perturbations, and SGP4/SDP4 orbit propagators.
10. The Access Constraints tool now incorporates the Custom Field of View feature, which enables users to define an Azimuth-Elevation (Min/Max) mask in the sensor's coordinate system. The Axis Azimuth-Elevation can be specified for off-nadir pointing conic and custom sensors. The tool supports the specification of multiple sensors for a satellite or a group of satellites. The definitions of masks, sensors, or sets of sensors can be saved to a database, easily looked up, and imported for use in other constellations.
Illustration of Conic Off-Nadir Pointing, Rectangular, and Custom Satellite Sensor's Field of View
The 3D OpenGL, 3D non-OpenGL, and 2D visualizations of a custom field of view, defined by the Azimuth-Elevation mask, reflect the impact of the Minimum Ground Station-Satellite Elevation Angle and Maximum Range constraints.
Custom Satellite Sensor's Field of View