There are still some calibration pads at Stennis Space Center leftover from their heyday in remote sensing support: https://www.google.com/maps/@30.3689672,-89

There are still some calibration pads at Stennis Space Center leftover from their heyday in remote sensing support: https://www.google.com/maps/@30.3689672,-89.5662234,128m/data=!3m1!1e3 https://www.google.com/maps/@30.3689672,-89.5662234,128m/dat... https://www.google.com/maps/@30.3855351,-89.6284331,349m/data=!3m1!1e3 https://www.google.com/maps/@30.3855351,-89.6284331,349m/dat...