Beginning on October 13, 1981 a two channel spectrometer aboard the Solar Mesosphere Explorer has been obtaining daily measurements of full disc solar irradiance. These observations cover the spectral interval 120 to 305nm with ~.75nm spectral resolution. The relative accuracy of the measurements from day to day over the first three solar rotations is approximately 1%. In this report we present analyses of Lyman-alpha, the integrated Schumann-Runge continuum (130-175nm), and the integrated Schumann-Runge bands (175 to 190nm). All three show a clear variability related primarily to the 27-day solar rotation period. Correlations of these three values of solar irradiance to ground-based indices of solar activity, 10.7cm flux and sunspot number, are presented.