We analyse cosmic ray hits impacting the detector system of the Coronal Dia
gnostic Spectrometer aboard the Solar and Heliospheric Observatory spacecra
ft. These observations allow us to study the modulation of cosmic rays over
a 4 year period (1996-2000) running from solar minimum to maximum, from a
Sun-Earth L1 Lagrangian orbit. The modulation, at the 45-50% level is consi
stent with cosmic rays of energy 1 GeV.