Hi All. This may be the one that Lowell referred to. Take Care…Don in creepy town

CREME96 presents three levels of solar-particle intensity:
Worst-Week Model: This model is based on SEP fluxes averaged over the 180 hours (=7.5 days) beginning at 1300 UT on 19 October 1989.

This week was the most severe SEP environment observed in the last two solar maxima (roughly 1980.5-83.5 and 1989.0-92.0). It can therefore be used as a "99% worst case" environment for systems designed to operate through solar maximum.
Worst-Day Model: This model is based on SEP fluxes averaged over 18 hours beginning at 1300 UT on 20 October 1989. This period was the single largest flux enhancement in October 1989. It was caused by the arrival at Earth of a powerful interplanetary shock, which also produced a large geomagnetic storm.

• October Solar Storm