nasa 4dThis value should be one of SM, GSM, GSE, GM, GEO, GEI_J2000, GEI_TOD. This parameter is optional and defaults to the 4D Orbit Viewer's default value. resolution: small integer: ThisFor over three decades, NASA and an international team of scientists and engineers pushed the limits of technology, innovation, and perseverance to build and launch the the most powerful space observatory ever created. This is