Layer Estimates:

Layer: track_points (ID:0)
Count: 14069
Extent:

XMin: -10290316.9559899
YMin: 6069051.29033715
XMax: -10021036.7775533
YMax: 6163514.32918223
Spatial Reference: 102100 (3857)

Layer: tracks (ID:1)
Count: 920
Extent:

XMin: -10290316.9559899
YMin: 6069051.29033715
XMax: -10021036.7775533
YMax: 6163514.32918223
Spatial Reference: 102100 (3857)