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Fig. 5.


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Hourly averaged dose rates for the January event (a), March event (b), and May event (c). The beginning and ending times are arbitarily taken to encompass the events. PREDICCS shielded SEP dose rates have been scaled to the location of MSL (1.12 AU, 1.27 AU, and 1.46 AU, respectively). We take note of the PREDICCS data gaps during DOY 31, DOY 60, and DOY 140. CRaTER measurements remain on the Moon’s surface where half the sky is blocked by the Moon, hence CRaTER’s background dose rate is lower than RAD by a factor of 2 in addition to the difference due to the distance from the Sun.

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