Numbers: Pierre Auger Observatory
In November, the Pierre Auger Observatory outside Malargüe, Argentina, celebrates its scientific launch. The observatory will record high-energy cosmic-ray showers with ground-based water tank detectors and air-shower cameras.
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 Photos: Pierre Auger Observatory |
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3000
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Detector area in square kilometers
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a |
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30
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Number of times Paris would fit
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1400
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Meters above sea level
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b |
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739
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Current number of water tanks
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1600
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Eventual number of tanks
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c |
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11,000
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Liters of water per tank
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1500
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Meters between water tanks
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20
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Years of expected lifetime for tanks
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3
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Current air observation cameras
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d |
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440
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Photomultiplier tubes per camera
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e |
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1500
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Events per day recorded
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140
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Highest energy of a recorded event
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100
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Speed in miles/hour of tennis ball
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15
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Countries participating
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1938
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Year Pierre Auger discovered
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20,000
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Population of Malargüe
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927
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Argentina's average human
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| 81 | Argentina's average llama population per detector area |
David Harris
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