Data Reduction and Analysis from the SOHO Spacecraft

We continue to analyze and interpret data from the MTOF sensor on SoHO, using recently obtained calibration data to improve our understanding of instrument response. We have presented a number of talks demonstrating the excellent instrument resolution and also displaying the temporal behavior of solar wind Fe(sup 54) and Fe(sup 56) isotopes and the element Cr(52). In addition, the isotopic ratios Ne(sup 20)/Ne (sup 22) = (13.8 +/- 0.7) and Ne(sup 20)/Ne(sup 21) = (440 +/- 110) were obtained from MTOF data. These ratios agree with the values obtained from the Apollo foil solar wind experiments and with values which have been derived from measurements on lunar and meteoritic samples.