My SRAG friends tell me it was a back-side event.  Imagery coming in now.   The CME coming off the west side there.

From: Crater-team <crater-team-bounces@lists.sr.unh.edu> on behalf of Harlan Spence <Harlan.Spence@unh.edu>
Date: Thursday, November 21, 2024 at 2:17 PM
To: jkwilson <jkwilson@guero.sr.unh.edu>, crater-team@lists.sr.unh.edu <crater-team@lists.sr.unh.edu>
Subject: [EXTERNAL] Re: [Crater-team] Surprise SEP Event

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I had an alert of multiple CMEs shortly ago – will try to hunt that down.

_________________________________

Dr. Harlan E. Spence

Director, Institute for the Study of Earth,

   Oceans, and Space 

Professor of Physics and Astronomy

Morse Hall, Room 306 

University of New Hampshire

8 College Road

Durham, NH 03824-3525

Phone: 603-862-0322

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Twitter: @HarlanSpence2

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From: Crater-team <crater-team-bounces@lists.sr.unh.edu> on behalf of Jody Wilson <jkwilson@guero.sr.unh.edu>
Date: Thursday, November 21, 2024 at 3:15 PM
To: crater-team@lists.sr.unh.edu <crater-team@lists.sr.unh.edu>
Subject: [Crater-team] Surprise SEP Event

Solar wind:
400 km/s
6 protons per cc

On 11/21/2024 3:12 PM, Nathan Schwadron wrote:

Hi Jody

Could you look at the solar wind data .. see if there is a shock or something. 

Nathan

On Nov 21, 2024, at 3:00 PM, Jody Wilson <jkwilson@guero.sr.unh.edu> wrote:

There's no associated X-ray flare, and there was no CME passage in the forecast.  Is this a stealth CME, or an X-ray flare that's just on the far side of the Sun?

<PXC70kTqUnJzjH8C.png>

<M09r3nwrCKNzrv7T.png>

On 11/21/2024 2:46 PM, Harlan Spence wrote:

Also, looks like a sizeable SEP event is underway. No realtime CRaTER data available at this time but we should see elevated rates during the next pass - probably very soon!
 
 
Sent from my iPhone
 

On Nov 21, 2024, at 2:35 PM, Jody Wilson <jkwilson@guero.sr.unh.edu> wrote:
 
CRaTER folks,
 
The CRaTER pipeline has finally processed DOYs 317 onwards.
Dozens of files spanning seven days had not been transmitted from Goddard, but we're caught up now.
 
-Jody
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Nathan Schwadron

nschwadron@guero.sr.unh.edu