Heliospheric Energetic Particle Variability Over the Solar Cycle

Comet 9P/Tempel 1, the target of the Deep Impact Mission, has been monitored for 7 months and a half aiming at its characterization before, during, and after the impact experiment. This characterization in each phase comprises the (i) determination of the rotation axis, (ii) evolution of the gas and (approximate) dust production rates, (iii) analysis of the gas and dust radial profiles, (iv) study of the dust colour as a function of the heliocentric distance and projected cometocentric distance, and (v) searching for a new long-lasting morphological structure in the coma due to the DI experiment.