Layer Estimates:

Layer: Royal Cruise Tracks (ID:2)
Count: 1048575
Extent:

XMin: -3648359.06202631
YMin: 881628.969171345
XMax: -2655779.15934358
YMax: 1994172.0725459
Spatial Reference: PROJCS["World from space_V1",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Orthographic"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Longitude_Of_Center",-75.0],PARAMETER["Latitude_Of_Center",50.0],UNIT["Meter",1.0]]

Layer: Columbia Cruise Tracks (ID:3)
Count: 290997
Extent:

XMin: -3677380.43018622
YMin: 894736.07448244
XMax: -2390632.12855069
YMax: 2315915.9479499
Spatial Reference: PROJCS["World from space_V1",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Orthographic"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Longitude_Of_Center",-75.0],PARAMETER["Latitude_Of_Center",50.0],UNIT["Meter",1.0]]