pathrow_num             Get WRS-2 path/row numbers for a given spatial
                        object
pathrow_poly            Get a polgon giving area of coverage of a given
                        WRS-1 or WRS-2 path and row
test_poly               Polygon outlining TEAM site in Caxiuan, Brazil
wrs1_asc_desc           Worldwide Reference System - 1 (WRS1)
                        SpatialPolygonsDataFrame
wrs2_asc_desc           Worldwide Reference System - 2 (WRS2)
                        SpatialPolygonsDataFrame
wrspathrow              wrspathrow
