I created this logo when I worked on the Boeing GPS IIF program.
It was selected as the team logo which would be used on promotional material like mugs and t-shirts.
I left this as part of my legacy on the program, now that I no longer work for Boeing.

This logo was created with Adobe Photoshop. The source material was the Boeing Logo and graphic of the Earth. I modified the Earth graphics with several out-of-the-box filters and used the "stroke" function to create all the grid and circular elements.

This was actually the second rendition of this graphic. I scrapped the first one and started over. Since I had already gone through the steps the first time around, this graphic only took 2 hours to create and refine.