Interplanetary variability in particle fluxes recorded by the low energy charged particle detector lion (40 KEV-6 MEV) on the soho spacecraft during its cruise phase to the L1 point
Kunow, H.; Muller-Mellin, R.; McKenna-Lawlor, Susan M. P.; Wenzel, K. -P.; Witte, M.; Szalai, S.; Kecskemety, K.; Elendt, I.; Rusznyak, P.
Australia, Ireland, Germany
Abstract
Representative types of energetic particle phenomena recorded by the LION instrument on SOHO during its Transfer Phase to, and while in early Halo Orbit about, the L1 Lagrangian Point are presented. The data cover the period from 7 December 1995 (instrument switch on) until 9/10 July 1996 (when a particle event associated with the first Class X flare since November 1992 was recorded). Although the first new cycle spots appeared on 10 May 1996 and the Solar Weather Operations Centre in Boulder estimates that the transition from Solar Cycle 22 to 23 occurred in July 1996, the solar related particle events prominent in LION data within the interval considered were individually associated with old cycle spots. Scientific investigations that can be mounted using the already rich and progressively updating LION data set are outlined.