Guide Field Reconnection for actual physical parameters

In preparation for the MMS mission by NASA we are challenged with the need to provide reliable quantitative predictions on the expected properties of features near reconnection regions. Previous published work focused on understanding the processes of reconnection and the use of unrealistic parameters was expedient in allowing easier simulation while still providing insight into the physics. But in designing the instrumentation and operation of MMS one needs actual precise quantitative predictions. We have conducted a series of simulations with actual physical parameters observed in the magntosphere of the Earth. We focus on specific features (electron holes, electron jets, cavities and flow) and measure their size and other properties for mass ratios ranging from 64 to the physical value for hydrogen and oxygen-hydrogen conditions observed by CLUSTER. Other parameters such as the guide field strength and the ratio of the cyclotron to plasma frequency are also chosen to maximize realism.