Correlations between neutral and ionized solar wind Michael R. Collier (1), Benjamin M. Pilkerton (1,2), Thomas E. Moore (1) (1) NASA/GSFC, Code 692, Greenbelt, Maryland, (2) USRA/CPSS, Seabrook, Maryland The Low Energy Neutral Atom (LENA) Imager on the IMAGE spacecraft has observed the neutral component of the solar wind (JGR, 106, 24,893, 2001) independently adumbrated by Akasofu and Dessler about forty years ago. Neutral solar wind is formed by solar wind charge exchange with interstellar neutrals, dust and the Earth s exosphere, in addition to any intrinsically neutral component. Here we report the results of a statistical study correlating the solar wind fluxes observed by ACE during late 2000 and throughout 2001 with neutral solar wind fluxes observed by LENA. The average correlation coefficient between the neutral and ionized solar wind is 0.66 with "good" correlations (peak correlation coefficient above 0.80) occurring about 28% of the time. The results are similar to those obtained by in-situ multi-spacecraft correlation studies. In this study, however, IMAGE is almost never in the solar wind or magnetosheath. The slope of the relationship between the neutral solar wind flux and the solar wind flux shows a peak in the upstream direction, but shifted toward higher ecliptic longitudes than the interstellar neutral (ISN) flow direction by about 20 degrees. The estimated peak interstellar neutral upstream density is about 10**-2 cm-3. _______________ Presented at the 35th COSPAR Scientific Assembly, Paris, France, July 18-25, 2004.