.. _storm_memos:

Storm Memos
============

There is a basic introduction to Space Weather `here <https://cxc.cfa.harvard.edu/twiki/bin/view/AcisOps/SpaceWeatherIntro>`_, on the ACIS Ops twiki.

There is also a discussion of ACIS response to radiation storms in the `On Radiation memo <http://cxc.cfa.harvard.edu/acis/reb/OnRadiation.html>`_.

A number of Chandra orbits have presented challenging radiation situations, making us look
hard at the criteria for recommending an SCS 107 interruption of the science loads. Below
are memos that have been written concerning these events.

- `May 22, 2013 <older_memos/MAY2213_memo.pdf>`_
- `December 22, 2014 <older_memos/DEC2214_memo.pdf>`_
- `September 10, 2017 <older_memos/SEP1017_memo.pdf>`_
- `February 26, 2023 <older_memos/FEB0623_memo.pdf>`_
- `April 23, 2023 <older_memos/APR2323_memo.pdf>`_
- `November 20, 2023 <older_memos/NOV2023_memo.pdf>`_
- `March 22, 2024 <older_memos/MAR2224_memo.pdf>`_
- `May 10, 2024 <older_memos/MAY1024_memo.pdf>`_
- `June 7, 2024 <older_memos/JUN0724_memo.pdf>`_
- `July 23, 2024 <older_memos/JUL2324_memo.pdf>`_
- `October 27, 2024 <older_memos/OCT2724_memo.pdf>`_
- `November 21, 2024 <older_memos/NOV2124_memo.pdf>`_
- `March 24, 2025 <older_memos/MAR2425_memo.pdf>`_
- `June 1, 2025 <older_memos/JUN0125_memo.pdf>`_
- `September 1, 2025 <older_memos/SEP0125_memo.pdf>`_
- `November 11, 2025 <older_memos/NOV1125_memo.pdf>`_
- `January 19, 2026 <JAN1926/JAN1926_memo.html>`_
- `April 1, 2026 <older_memos/APR0126_memo.pdf>`_