What is the location of Patm=0kpa?

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SUMMARY

Patm=0 kPa does not correspond to a specific geographical location, as atmospheric pressure decreases continuously and asymptotically with increasing altitude. At sea level, atmospheric pressure is 101.3 kPa, while at approximately 20 miles (32 kilometers) above sea level, the pressure drops to about 1 kPa. This illustrates the relationship between altitude and atmospheric pressure, emphasizing that zero pressure is not attainable within the Earth's atmosphere.

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I know Patm=101.3kpa located at sea level. Then how about Patm=0? Where is it located?
 
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There is no specific location, as pressure drops continuously and asymptotically toward zero as altitude increases. At 20 miles up, for example, the pressure is only about 1 kPa.
 

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