Output Plots

The GEOPlot application has two different formats. One format shows the FUV image with one plot box below it containing one or two traces. The other format shows the FUV image with tow plot boxs below it each of which will contain contain one or two traces. In the first format both the image and plot larger than in the second format due to simple size contraints.

Clicking on the Run button in the User Interface menu begins the the program which runs using the options defined in the menu. Running the program with the example menu at the end of the last section brings up the plot:

The upper left corner of the output display contains a listing of the parameters being output. This includes the FUV image being plotted together with its start time, the DMSP satellite being used and the start time of the data accumulation, and a complete listing of all the line traces. To the right of this information is the FUV image plotted according to the specifications set in the User Interface. The satellite track is the red &bull followed by a set of +'s. The &bull is the start location of the satellite at the start of the data accumulation. The subsequent +'s occur at integral minute marks following the start time. The &bull in the figure is the satellite location at 00:40:21 UT, the first + is the satellite location at 00:41:00, the next is the satelite location at 00:42:00 UT, and so on. Below the FUV image are the two plots containing the 4 output traces. The measurement descriptions are given along the y-axes they are plotted against and their units are shown directly above they y-axis.

It is possible to clip the FUV image so that the location of the DMSP satellite at the start of the data accumulation will not be seen on the FUV plot. In this case you should enlarge the clipping boundary and/or bring forward the starting time. Knowing the starting position allows you to map the +'s to time and to know the direction of motion of the satellite. In the case above the satellite is traveling right to left. This means that in the ion drift in the lower plot, the positive drift is towards the sun (positvie drift is to the left of the satellite track when viewed in the direction of travel).

The figure below is shows the identical output to the one above with the exception that all of the traces were synced to the FUV pixels.

The last example plot below shows the display when only one plot box is output. The FUV image center latitude has also been changed to 90° so that the image is being viewed from directly overhead creating a pseudo-polar plot output. With only a single plot box, both the FUV image and the plots are scaled larger.