1# CODE TABLE 7, Resolution and Component Flags 21 0 Direction increments not given 31 1 Direction increments given 42 0 Earth assumed spherical with radius = 6367.47 km 52 1 Earth assumed oblate spheroid with size as determined by IAU in 1965: 6378.160 km, 6356.775 km, f = 1/297.0 65 0 u and v components resolved relative to easterly and northerly directions 75 1 u and v components resolved relative to the defined grid 8