SOLAR HI LYMAN-ALPHA FULL DISK PROFILE OBTAINED WITH THE SUMER SOHO SPECTROMETER/

An uncalibrated solar hydrogen Lyman ct profile was obtained with the use of the spectrometer on SOHO. The collection of the light scattered by the telescope permitted to average the profile over the full solar disk. The profile taken at the L-1 Sun-Earth Lagrangian position is f ree of the central geocoronal absorption. Then, taking advantage of th e absolute flux measured by the SOLSTICE/UARS spectrometer, an absolut e line profile intensity is derived, and is compared with previous obs ervations at minimum solar activity.