GOES-8, ACE, EPHIN, and ACIS count rates plotted on the same time scale.
Also shown on the same timescale is a stripchart of Chandra configuration.
EPHIN thresholds are shown at 1/3 the RADMON trip levels and
rad zones are defined as times above these thresholds.
See also Rad zone timing plots.
EPHIN and ACIS data are obtained from the standard data pipeline. Therefore this plot lags behind the most current ACE and most current GOES data and may be incomplete.