proj-string: +proj=pconic +lat_1=25 +lat_2=75
+proj=pconic +lat_1=25 +lat_2=75
+lat_1
=<value>
First standard parallel.
Defaults to 0.0.
+lat_2
Second standard parallel.
+lon_0
Longitude of projection center.
+R
Radius of the sphere given in meters. If used in conjunction with +ellps +R takes precedence.
+ellps
+x_0
False easting.
+y_0
False northing.