A Satellite Planning System Based On WebGIS In Earth-Observation

Planning system is a crucial part which contacts planners with mission tasks inEarth-Observation missions. Its' major tasks is to assist planners by applying feasibleand reasonable planning in condition of various planning information, such as thestatus of satellite and payloads, signals' receiving condition of ground station, and thesatellites sub-track forecast information.The traditional planning system concerns with the mission too much that it lacksagility, and the whole planning progress is too complex for planners to use. With thedevelopment of the spaceflight technology, earth-observation system tend to be ahigher-precision and all-weather status with characters of multi-satellites,multi-observators, multi-planners, multi-stations, and multi-data transmitiosn ways.This trend brings forward a strict request to planning system. In order to satisfy therequests of the earth-ovservation development, simplify the steps of planning and toenhance the ability of information analyzing for users, this paper introduced aplanning system based on WebGIS, mainly discussed the application of WebGIS inplanning system in earth-observation. The framework and design scheme is given inthe paper Surrounded with the characters of WebGIS and planning system, and themethod of creating satellite sub-track features, creating observators' scanning regionsand information analyze by WebGIS are also given in the paper combined with theimplementation. Finally, the problems encountered in the system are introduced, andsolving schemes are given.The WebGIS based planning system provides many advantages to the planningsystem by using of Web and GIS technology. It changed the unhandy work modes oftraditional planning system, and the intuitionist graphic expression ways makes thenew system planner-oriented characterized. Compared with the traditional system, thenew system makes the information expressed in a straight way, it enhanced theplanning's efficiency, released the work load and satisfy the planners needs in manyways.