cdm/src/main/java/ucar/unidata/geoloc/projection/sat/GEOSTransform.java
public static String sweepAngleAxisToScanGeom(String sweepAngleAxis) {

    String scanGeom = GOES;
    if (sweepAngleAxis.equals("y")) {
      scanGeom = GEOS;
    }

    return scanGeom;
  }
public static String sweepAngleAxisToScanGeom(String sweepAngleAxis) {

    String scanGeom = GOES;
    if (sweepAngleAxis.equals("y")) {
      scanGeom = GEOS;
    }

    return scanGeom;
  }
Find scan geometry associated with sweep_angle_axis

@param sweepAngleAxis sweep_angle_axis (x or y)
@return scan_geom scanning geometry (GOES or GEOS)