Corotating Model: Synoptic forecast of the solar wind These Carrington maps (with heliographic longitude and Carrington rotation number on the horizontal, and latitude on the vertical axis) show solar wind radial and tangential magnetic field at the distance of the Earth from the Sun on 2008/12/01 08 UT. The location of Earth at this time is marked near the center of the map. The values to the left of the dashed line are those forecast to arrive at Earth at the dates indicated above the map. The velocity and density at the Earth are shown as traces at the bottom of the display. The maps are derived from a corotating model of the solar wind that is fit to interplanetary scintillation (IPS) velocities and g-levels received daily from STELab, Japan. The display is updated hourly. The tomographic corotating model is updated every time new IPS data arrive from Japan, most recently at 2008/11/24 15 UT. The animations run in 2.0-hour steps from 6.0 days before, to 1.0 days after the last time data were received.