0 degrees true north is at the left and right edges. This is a picture of the satellite tracks across the sky. The false color is the signal intensity. The blue is a strong signal the red is a weak signal. The picture is calibrated at 0.5 degrees per pixel in both dimensions.
True north is at the lower left and lower right.
The top is 90 degree elevation. The bottom is 0 degrees elevation. The goal of this little hack was to take a passive microwave picture of the local skyline using only the gps satellites for illumination. This picture is only a limited exposure. I was hoping that after a few weeks, it should start looking more like a the visible light view of the skyline from the roof.