Greetings Lee,
I understand that you want to rotate the geoglobe in geoplot3 to show the satellite's orbit around the Earth in ECI frame.
The geoglobe function does not support the feature to rotate the globe with respect to the camera. However, Aerospace Toolbox and Satellite Communications Toolbox provides the Satellite Scenario Viewer which supports this capability. In particular, you can check out the CameraReferenceFrame property, which can be set to "inertial" in order to fix the camera in the ECI reference frame:
Here's the URL to the MATLAB documentation on satelliteScenarioViewer for further guidance:
The Satellite Scenario Viewer is part of the Satellite Scenario interface which is designed for orbit propagation and visualization. For more information, you can visit the URL below:
Hope this helps!
Regards,
Suraj.