[en] Ionospheric E x B convections are measured by a new technique that uses satellite scintillations. The measurements are for and ionospheric region centred on 39⁰N, 82⁰W geographic or 53⁰ invarient latitude. Results are presented for spring equinox 1980. The quiet condition eastward convection drift is approximately V/sub i/E = -12+43 cos(2π/24)(t-13.4). During disturbed conditions at nighttime the westward convection becomes large and highly variable. The northward perpendicular E x B convection is approximately V/sub i/N = -5+13 cos (2π/12)(t-10.5)+6 cos (2π/24) (t-11.5) m/s during quiet conditions. During disturbed conditions the semidiurnal component of the northward convection increases by about a factor of 3 and becomes larger than the diurnal