Message Type: CME
Message ID: 20260530-AL-002
Issue Time: 2026-05-30T18:55Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Missions Near Earth)
##
## Message Issue Date: 2026-05-30T18:55:13Z
## Message ID: 20260530-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:
C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-05-30T01:38Z.
Estimated speed: ~503 km/s.
Estimated opening half-angle: 10 deg.
Direction (lon./lat.): -30/-1 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-30T01:38:00-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 this CME have a glancing blow at NASA missions near Earth. Simulations indicate that the flank of the CME will reach NASA missions near Earth at about 2026-06-02T19:00Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 2-3 (below minor).
Links to the movies of the modeled event (includes CME: 2026-05-30T01:38:00-CME-001):
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_073500_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_073500_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_073500_2.0_ENLIL_CONE_timeline.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:
Message Type: CME
Message ID: 20260530-AL-001
Issue Time: 2026-05-30T17:04Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juno, Solar Orbiter, BepiColombo)
##
## Message Issue Date: 2026-05-30T17:04:24Z
## Message ID: 20260530-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 STEREO A / GOES / SOHO.
Start time of the event: 2026-05-30T08:38Z.
Estimated speed: ~776 km/s.
Estimated opening half-angle: 51 deg.
Direction (lon./lat.): -168/23 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-30T08:38:00-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 Juno (glancing blow), Solar Orbiter, and BepiColombo (glancing blow). The leading edge of the CME may reach Solar Orbiter at 2026-06-01T05:11Z, and the flank of the CME may reach Juno at 2026-06-13T12:00Z and BepiColombo at 2026-05-31T14:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-05-30T08:38:00-CME-001):
(a) 2 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_2.0_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_2.0_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_2.0_ENLIL_CONE_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_2.0_ENLIL_CONE_Bepi_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_2.0_ENLIL_CONE_SolO_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_5.5_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_5.5_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260530_125900_5.5_ENLIL_CONE_Juno_timeline.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:
