20thcentury aerospacetelemetry agriculture animals armedforces artificialsatellites astronautics automatictracking controlsystems dispersal dynamics fighterplanes groundsupportsystems(astronautics) history huntingsports internationalcooperation mathematicaloptimization multiagentsystems operationalreadiness opticaldetectors opticalradar orbits procurement remotesensing research researchlincolnlaboratory satelliteconstellations spacedebris spacesurveillance spacevehicles specialmethodsandtypesofhunting targetacquisition technologicalinnovations trackingandtrailing trackingradar unitedstates wildlifemonitoring