Layer Estimates:

Layer: Airports (ID:1)
Count: 102
Extent:

XMin: -75.465277778
YMin: 39.0085
XMax: -74.032917778
YMax: 41.200206667
Spatial Reference: 104145 (104145)

Layer: Heliports (ID:2)
Count: 46
Extent:

XMin: -75.1671666669999
YMin: 39.314611111
XMax: -73.994805556
YMax: 41.3125833330001
Spatial Reference: 104145 (104145)

Layer: Helistops (ID:3)
Count: 240
Extent:

XMin: -75.531388889
YMin: 39.008888889
XMax: -73.969555556
YMax: 41.314666667
Spatial Reference: 104145 (104145)