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: ThisThis allows any Web application to offer an interactive 4D display of the trajectories of satellites known to SSC. The 4D Orbit Viewer requires that Java be installed on the end-users