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: ThisManagement by Trajectory (MBT) is a NASA concept for air traffic management in which every flht operates in accordance with a 4D trajectory that is negotiated