Session
Technical Session III: International Programs
Abstract
DAVID is a small satellite for advanced remote sensing purposes - designed to meet the specific requirements of today's and tomorrow's Earth observation users in the fields of environmental monitoring, hazard warning and damage assessment. The development is a joint German-Israeli co-operative project. The satellite is designed to provide earth images with high spatial and spectral resolution and good radiometric sensitivity, despite its small size and low cost. It will have more spectral bands in the VIS/NIR range than sensors on most existing or planned multi-spectral high-resolution satellites and higher ground resolution than planned hyperspectral space sensors like LEWIS or MODIS. DAVID will be able to meet the actual tendencies in Earth observation by delivering 12 narrow bands with a spatial resolution of about 5 m. By its slewing capability DAVID will get the important performance gain of short data delivery times due to short target revisit cycles of 3 days can be established. This is particularly important for the monitoring of dynamic processes. Existing space-rated sub-systems will be used or adapted for this system, combined with new satellite and detector technologies, to achieve the low cost and high performance goals. The two principal companies involved, OHB System in Germany and El-Op in Israel are both experienced in the design and construction of space systems, some of which have already been successfully launched. In addition, another German company, GAF, is actively involved in the parameter defamation and image product distribution aspects of the system. A feasibility study has been completed. This paper will describe the updated system concept.
DAVID: A Multi Spectral High-Resolution Small Satellite
DAVID is a small satellite for advanced remote sensing purposes - designed to meet the specific requirements of today's and tomorrow's Earth observation users in the fields of environmental monitoring, hazard warning and damage assessment. The development is a joint German-Israeli co-operative project. The satellite is designed to provide earth images with high spatial and spectral resolution and good radiometric sensitivity, despite its small size and low cost. It will have more spectral bands in the VIS/NIR range than sensors on most existing or planned multi-spectral high-resolution satellites and higher ground resolution than planned hyperspectral space sensors like LEWIS or MODIS. DAVID will be able to meet the actual tendencies in Earth observation by delivering 12 narrow bands with a spatial resolution of about 5 m. By its slewing capability DAVID will get the important performance gain of short data delivery times due to short target revisit cycles of 3 days can be established. This is particularly important for the monitoring of dynamic processes. Existing space-rated sub-systems will be used or adapted for this system, combined with new satellite and detector technologies, to achieve the low cost and high performance goals. The two principal companies involved, OHB System in Germany and El-Op in Israel are both experienced in the design and construction of space systems, some of which have already been successfully launched. In addition, another German company, GAF, is actively involved in the parameter defamation and image product distribution aspects of the system. A feasibility study has been completed. This paper will describe the updated system concept.
