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Phobos-Grunt 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.

Listed oldest (top of page) to most recent (bottom of page)

Phobos-Grunt crossing Air Force Space Fence 21 Nov 2011

Phobos-Grunt crossing Air Force Space Fence 22 Nov 2011

Listen to audio that made below graph

Phobos-Grunt crossing Air Force Space Fence 23 Nov 2011

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Phobos-Grunt orbiting above Colorado Springs, CO on 23 Nov 2011

Phobos-Grunt crossing Air Force Space Fence 25 Nov 2011

Phobos-Grunt crossing Air Force Space Fence 2 Dec 2011

Phobos-Grunt crossing Air Force Space Fence 1130 hrs, 4 Dec 2011

Phobos-Grunt crossing Air Force Space Fence 1919 hrs, 4 Dec 2011

Listen to audio that made below graph

Phobos-Grunt in decay with debris crossing Air Force Space Fence 1911 hrs, 5 Dec 2011

'Possibly' Phobos-Grunt with debris crossing Air Force Space Fence approx 1904 - 1905 hrs, 6 Dec 2011

Phobos-Grunt with debris crossing Air Force Space Fence 9 Dec 2011 at approx 1707 hrs

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Phobos-Grunt crossing Air Force Space Fence 10 Dec 2011 at approx 1656 hrs

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Unknown object crossing Space Fence one minute before Phobos Grunt (decay debris?) 10 Dec 2011

Phobos-Grunt crossing Air Force Space Fence 11 Dec 2011 at approx 0856 hrs

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Phobos-Grunt crossing Air Force Space Fence 30 Dec 2011 at approx 0726 hrs

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Phobos-Grunt crossing Air Force Space Fence 30 Dec 2011 at approx 1836 hrs

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Phobos-Grunt crossing Air Force Space Fence 13 Jan 2012

Listen to audio that made below graph

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