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 Tuesday 25 June 2024