ICE ENERGETIC PARTICLE ANISOTROPY SPECTROMETER DATA V1.0

In this G-Z dataset, observations from channels E1 to E5 (table below) are included since cometary ions were not detected in the higher energy channels. For each of these channels, particle counts are accumulated in eight azimuthal sectors of 45 deg. width in each telescope. The sectors are numbered from 1 to 8 anticlockwise when viewed from above the ecliptic, with Sector 1 centered on the sun- Earth line, i.e. it views in the sunward direction and detects ions streaming away from the Sun. At Giacobini-Zinner, a complete 3- dimensional distribution function was obtained at 32 s intervals during the main encounter phase, changing to 64 s at greater distances e.g. after 1830 UT on 12 September outbound.