42 Estimates and research, assessment, elaboration [design], development, updating of sensors and sensor systems for aerospace application; estimations and research, assessment, elaboration [design], development, updating of sensors and sensor systems for space observation and monitoring; estimations and research, assessment, elaboration [design], development, updating and maintenance of software for aerospace application; estimations and research, assessment, elaboration [design], development, updating and maintenance of software for space observation and monitoring; estimations and research, assessment, elaboration [design], development, updating and maintenance of software for detecting, tracking, monitoring and analyzing space debris; estimates and research, assessment, elaboration [design], development, updating and maintenance of software for operating, interfacing and converting data, signal processing, image processing, tracking, orbitography, data fusion and reconstruction for aerospace monitoring; technical studies and projects for aerospace application; technical studies and projects for space observation and monitoring.