Or signal source being tracked is changing with respect to time.

And stemmed before they tried to explain the 4 corners of Earth. Average people understand 4 Day Creation. Humans ignore their 4 corner.

Ene DL OF eS WASTE = MANAGEMENT FREON COOLANT PUMP PACKAGES (2) NITROGEN STORAGE SPACE RADIATOR FORWARD PANELS OXYGEN STORAGE PAYLOAD BAY DOOR N FORWARD PANELS RADIATE AFT RADIATOR PANELS PAYLOAD BAY DOORS CREW CABIN PAYLOAD BAY DOOR N.