[Crater-team] Another six months' CRaTER data in LET spectra and dose rate

[Justin Kasper]

Mark,

This is fascinating. I had assumed this solar minimum wasn’t as severe as
the last (it hasn’t been in terms of the solar wind parameters I pay more
attention to) and that the GCR dose wouldn’t be as high as it was last
time.

Justin

On Friday, March 11, 2022, Mark D Looper <mark.d.looper at aero.org> wrote:

> Hello—
>
>
>
>                 I attach three graphs, which extend the time series from
> the 2020 Space Weather paper  (DOI 10.1029/2020SW002543) with another six
> months of data (thanks, as always, to Jody for making this available in
> near real time).  There are two plots of LET spectra, both multiplied by
> the square of the abscissa to reduce the many-decade dynamic range; one
> magnifies the H/He region where statistics are best, so that differences
> can more readily be seen.  There is also a plot of the 4-pi dose rate,
> calculated per the appendix of the paper for the spectrum measured in each
> six-month period.  As discussed in that paper, intensity during the recent
> solar minimum rose a few percent above the already record-setting intensity
> at the start of the mission; as of the most recent period, it has finally
> fallen back (slightly) below the level at the start of the mission.
>
>
>
> Hope this helps in pointing out CRaTER’s utility to Artemis et al.—
>
> --Mark
>
>
>
> Mark D. Looper
> Space Sciences Department
> The Aerospace Corporation
> M/S M2-260
> P.O. Box 92957
> Los Angeles, CA 90009-2957
> Mobile: 310-529-3406
> Voicemail: 310-336-6302
>
> Publications: https://www.loopers.org/curvitae.html
>
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