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Dan writes how, using Sentinel-1 data, he made a surprising discovery: the AN/MPQ-53/65 radar at the heart of the Patriot missile system creates visible interference waves in the SAR data, making blurry Xs that mark the precise location of the radars.
Patriot isn’t the only system detectable by SAR data. The 96L6E (NATO’s unflattering nickname: “Cheese Board”) early warning and acquisition radar used by Russia’s S-300 and newer S-400 long-range surface to air missile systems also operates in the C band and should show up using Dan’s analytical method. The 96L6E is only part of the S-300/S-400 system, with the 96N2E (“Grave Stone”) steering the actual missiles