nasa 4d4D BADA-based Trajectory Generator and 3D Guidance Algorithm Eduardo Sepúlveda Palacios#1, Marcus Johnson*2 #Universidad Autónoma de Nuevo León. Pedro de AlbaThis 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: This