Fantastic, Mark! The fall to the new low was so dramatic. If LRO and CRaTER make it to 2031, then we will witness one more solar minimum. Any predictions? :-) Quite a ride for what was to be only a one-year mission, conceived, built, and flown so long ago now! Go LRO!!

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From: Crater-team <crater-team-bounces@lists.sr.unh.edu> on behalf of Mark D Looper <mark.d.looper@aero.org>
Sent: Monday, March 18, 2024 8:59:52 PM
To: crater-team@lists.sr.unh.edu <crater-team@lists.sr.unh.edu>
Subject: [Crater-team] Another six-month data point on the CRatER GCR LET time series

Hello—

I think I sent you an earlier version of this (with one fewer spectrum) last fall. I would like to place the LET spectra from our 2020 paper on the Zenodo archive and update the collection as time goes on, with a new spectrum every 6 months. The most recent spectrum (and the dose rate calculated from it) has fallen well below the previous low mark, set during the solar maximum around 2014.

I have to get permission from the Aerospace legal folks to effect the necessary distribution license on Zenodo; my efforts to obtain this kind of ran dry around AGU time, but I need to start pushing on that Sisyphean rock again, in particular so I can put the GLACE model out there in time to publish the paper about it. I attach a text file with the spectra and a README file describing its contents, with plots that update the ones in the 2020 paper and that correct an error I made there in combining high-LET bins for better statistics.

Enjoy—

--Mark

Mark D. Looper, PhD
Space Sciences Department
The Aerospace Corporation
M/S M2-260
P.O. Box 92957
Los Angeles, CA 90009-2957
Mobile: 310-529-3406
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Publications: https://www.loopers.org/curvitae.html