The NAS provides navigational and attitude data for the on-board measuring systems. The NAS comprises: OxTS RT3003 INS/DGPS system RIegl LD90-3300HR laser altimeter A rigid mounting system with bays for the current optical sensors Local power and network distribution. OxTS RT3003 INS/DGPS The RT3003 provides high accuracy GPS positioning alongside very precise attitude data. Riegl LD90-3300HR Laser Altimeter The LD90 provides very accurate range to surface data (on a first-return basis) at 100Hz for real-time reference and logging. Mounting and Local Distribution The NAS provides mounting bays for optical sensors and power and network functions to support them. This article was published on 2024-06-25