Hello—

                You’ll recall that I have been continuing to add data points every six months to the time series from our 2020 paper on CRaTER GCR LET spectra.  I was just now able to add another, so I attach a copy of the updated readme file for the dataset, with figures summarizing the data.  The spectrum (and dose rate) for the most recent six months are slightly below those from the previous period, but it looks like it is bottoming out.  I am still trying to get our legal department to allow me to post this to Zenodo (along with the GLACE data files – remember those?), but I think I’m getting closer.  Wish me luck…

Thanks—

--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
Voicemail: 310-336-6302
Publications: https://www.loopers.org/curvitae.html