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ISS and Space Shuttle Space Fence Spectrograms

Space Object Detection

Using the 216.980 MHz signal generated by the Air Force Space Fence as the detection tool, below are some spectrograms of objects passing through that RF fence that radiates in an upward direction from Lake Kickapoo, TX. As objects orbit above the area and pass through the space fence they reflect the 216.980 MHz frequency. Antennas pointed in a direction favorable for signal detection can receive that reflected signal These spectrograms are a product of the audio from a sideband of that frequency reflection.  Some example audio files are also included. The following spectrograms and audio files were made by me.

STS-133 and ISS crossing Air Force Space Fence 26 Feb 2011

Listen to audio that made below graph

ISS crossing Air Force Space Fence 8 Mar 2011

STS-133 crossing Air Force Space Fence 8 Mar 2011

ISS crossing Air Force Space Fence 20 Nov 2011

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