What things do not effect the observations of radio telescopes

-- the height of the grass

-- the price of olive oil

-- TV sitcom audience ratings

-- migration of Canada geese

-- the color of my car

-- the weight of a sack of dog food

-- sales of Justin Bieber's latest record

-- or his earliest, for that matter

-- winners of the World Series or the Stupor Bowl

-- findings by the robotic Mars rovers

-- the moon's sidereal rotation period

-- the winner of the Fifth race at Santa Anita

-- the size of the crowd at the president's inauguration

-- proven oil reserves in Qatar

-- all the AM, FM, TV, fire, police, microwave, wifi, garage-door openers, cellphones, toy walkie-talkies, and ham radio operators in the world, operating legally, outside of designated radio astronomy quiet zones