Message Type: RBE

Message ID: 20251125-AL-002

Issue Time: 2025-11-25T14:01Z

Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2025-11-25T14:01:21Z
## Message ID: 20251125-AL-002
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.


## Summary:

Significantly elevated energetic electron fluxes in the Earth's outer radiation belt. GOES "greater than 2.0 MeV" integral electron flux is above 1000 pfu starting at 2025-11-25T12:50Z.

The elevated energetic electron flux levels are caused by the arrival of a coronal hole high speed stream which started on 2025-11-24, reaching a maximum speed of approximately 830 km/s. The solar wind speed observed at L1 is currently around 800 km/s.

NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.

Activity ID: 2025-11-25T12:50:00-RBE-001.

## Notes:

URL: View Details

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Message Type: RBE

Message ID: 20251125-AL-001

Issue Time: 2025-11-25T12:59Z

Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2025-11-25T12:59:37Z
## Message ID: 20251125-AL-001
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.


## Summary:

Significantly elevated energetic electron fluxes in the Earth's outer radiation belt. GOES "greater than 2.0 MeV" integral electron flux is above 1000 pfu starting at 2025-11-25T12:50Z.


NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.

Activity ID: 2025-11-25T12:50:00-RBE-001.

## Notes:

URL: View Details

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Message Type: CME

Message ID: 20251124-AL-001

Issue Time: 2025-11-24T02:37Z

Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (BepiColombo, STEREO A)
##
## Message Issue Date: 2025-11-24T02:37:34Z
## Message ID: 20251124-AL-001
##
## Disclaimer: NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts. This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.


## Summary:

C-type CME detected by GOES.

Start time of the event: 2025-11-23T23:30Z.

Estimated speed: ~865 km/s.

Estimated opening half-angle: 21 deg.

Direction (lon./lat.): 90/-23 in Heliocentric Earth Equatorial coordinates.

Activity ID: 2025-11-23T23:30:00-CME-001

Based on preliminary analysis by the Moon to Mars Space Weather Analysis Office and heliospheric modeling carried out at NASA Community Coordinated Modeling Center, it is estimated that the CME may impact BepiColombo (minor impact) and STEREO A (glancing blow). The leading edge of the CME will reach BepiColombo at 2025-11-24T19:00Z (plus minus 7 hours). The flank of the CME may reach STEREO A at 2025-11-26T22:00Z (plus minus 7 hours).

Links to the movies of the modeled event (includes CME: 2025-11-23T23:30:00-CME-001):

(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_anim.tim-den-Stereo_A.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_anim.tim-vel-Stereo_A.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_ENLIL_CONE_STA_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_2.0_ENLIL_CONE_Bepi_timeline.gif

(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251124_030600_5.5_anim.tim-vel.gif


## Notes:


SCORE CME typification system:
S-type: CMEs with speeds less than 500 km/s
C-type: Common 500-999 km/s
O-type: Occasional 1000-1999 km/s
R-type: Rare 2000-2999 km/s
ER-type: Extremely Rare >3000 km/s

URL: View Details

GIFs:

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