ROB

 Projection     : Robinson
 General class  : pseudo-cylindrical
 Earth model    : sphere

Defining the MAPUNITS:

 MapUnits "rob"      ! Standard name
 MapUnits "rob e19"  ! Standard name and ellipsoid

Other parameters:

 TrueOriginLongitude "central_meridian"  ! Required, for True origin
 FalseEasting        "false_easting"     ! Optional, default is zero
 FalseNorthing       "false_northing"    ! Optional, default is zero

Possible errors:

 E330, "Calculation failed to converge to a solution" - In converting 
        from projection coordinates to geographic coordinates, too 
        many iterations were made.