We have been discussing offering at some point in the future satellite footprints on some of the maps we offer. Initially the ISS but some Satellites may be appropriate as well. We have also been looking at this in the context of disaster management, and providing some tools for disaster planners to visualize where different useful satellites may be located to assist.
These two A and B excellent questions provide a great deal of information but are way too complex for my old brain to put into practice.
Would someone be able to show me the correct Openlayers JScript Code to draw the shape of the footprint on a vector layer, given the Satellites position and height.
Accuracy would not be critical as it is a visualization. Maps would be EPSG:4326 and/or EPSG:900913