Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: SEP
Message ID: 20260120-AL-003
Issue Time: 2026-01-20T13:08Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - SEP
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## Message Issue Date: 2026-01-20T13:08:18Z
## Message ID: 20260120-AL-003
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## 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:
Solar energetic particle event detected by STEREO A. The flux of 13-100 MeV protons exceeds 10^(-1) pfu/MeV starting at 2026-01-20T02:58Z.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Auto-generated Space Weather Notification - Flare intensity has crossed the threshold of M5.0
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## Message Issue Date: 2026-01-20T13:08:18Z
## Message ID: 20260120-AL-003
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## 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:
Significant flare detected by GOES. Flare intensity has crossed the threshold of M5.0.
Flare M5.0 crossing time: 2026-01-18T17:49Z.
Increased energetic proton fluxes possible. Updates on this event will be provided when available.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Geomagnetic Storm
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## Message Issue Date: 2026-01-20T12:19:00Z
## Message ID: 20260120-AL-002
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## 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:
Intensifying space weather storm in the Earth's magnetosphere. Geomagnetic Kp index has reached level 8 (severe) during the synoptic period 2026-01-20T09:00Z to 2026-01-20T12:00Z.
The storm is caused by the Interplanetary Shock with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005) and the arrival of the CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004).
NASA spacecraft at GEO, MEO, polar and other orbits passing through or in the vicinity of the Earth's ring current and auroral regions can be impacted.
Activity ID: 2026-01-19T18:00:00-GST-001.
## Notes:
This event is associated with Magnetopause Crossing with ID 2026-01-19T22:49:00-MPC-001 (see notification 20260119-AL-008).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Geomagnetic Storm
##
## Message Issue Date: 2026-01-20T00:10:37Z
## Message ID: 20260120-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:
Intensifying space weather storm in the Earth's magnetosphere. Geomagnetic Kp index has reached level 8.67 (severe) during the synoptic period 2026-01-19T21:00Z to 2026-01-20T00:00Z.
The storm is caused by the Interplanetary Shock with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005) and the arrival of the CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004).
NASA spacecraft at GEO, MEO, polar and other orbits passing through or in the vicinity of the Earth's ring current and auroral regions can be impacted.
Activity ID: 2026-01-19T18:00:00-GST-001.
## Notes:
This event is associated with Magnetopause Crossing with ID 2026-01-19T22:49:00-MPC-001 (see notification 20260119-AL-008).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Magnetopause Crossing
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## Message Issue Date: 2026-01-19T21:58:19Z
## Message ID: 20260119-AL-008
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## 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:
Strong compression of the magnetosphere detected. Simulations carried out at NASA Community Coordinated Modeling Center indicate that the magnetopause separating magnetospheric and solar wind plasma is close to the geosynchronous orbit starting at 2026-01-19T22:49Z.
The activity is associated with the Interplanetary Shock with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005), the arrival of the CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004), and the Geomagnetic Storm with ID 2026-01-19T18:00:00-GST-001 (see notification 20260119-AL-007).
NASA spacecraft at the geosynchronous orbits may be exposed to solar wind plasma and magnetic field conditions.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Geomagnetic Storm
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## Message Issue Date: 2026-01-19T21:09:43Z
## Message ID: 20260119-AL-007
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## 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:
Ongoing space weather storm in the Earth's magnetosphere. Geomagnetic Kp index has reached level 8.33 (severe) during the synoptic period 2026-01-19T18:00Z to 2026-01-19T21:00Z.
The storm is caused by the Interplanetary Shock with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005) and the arrival of the CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004).
NASA spacecraft at GEO, MEO, polar and other orbits passing through or in the vicinity of the Earth's ring current and auroral regions can be impacted.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP Update (GOES)
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## Message Issue Date: 2026-01-19T19:43:01Z
## Message ID: 20260119-AL-006
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## 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:
Ongoing solar energetic particle event detected by GOES. The flux of >10 MeV protons exceeds 10 pfu starting at 2026-01-18T22:55Z (see notification 20260118-AL-007). An additional rise in the proton flux started after 2026-01-19T18:30Z, reaching 36,976 pfu so far. This additional enhancement of the ongoing SEP event was associated with IPS with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005).
NASA spacecraft at MEO, GEO and other high-altitude orbits and high-inclination LEO can be impacted.
Activity ID: 2026-01-18T22:55:00-SEP-001.
## Notes:
The original SEP event (2026-01-18T22:55:00-SEP-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004) and CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004).
This further enhancement of the ongoing SEP event is associated with IPS with ID 2026-01-19T18:55:00-IPS-001 (see notification 20260119-AL-005), associated with the arrival of previously mentioned O-Type CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Interplanetary Shock
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## Message Issue Date: 2026-01-19T19:09:22Z
## Message ID: 20260119-AL-005
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## 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:
Significant interplanetary shock detected by ACE and DSCOVR at L1 at 2026-01-19T18:55Z.
The shock is caused by the CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001, 20260119-AL-004). Strong magnetospheric compression expected and severe geomagnetic storm likely.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (ensemble) (Missions Near Earth)
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## Message Issue Date: 2026-01-19T17:22:57Z
## Message ID: 20260119-AL-004
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## 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:
BETA PRODUCT. ENSEMBLE PRODUCT IS STILL IN DEVELOPMENT MODE. PLEASE LET US KNOW IF YOU HAVE ANY SUGGESTIONS FOR MODIFICATIONS.
Ensemble modeling update on CME with ID 2026-01-18T18:09:00-CME-001 (see previous notifications 20260118-AL-005, 20260119-AL-001). Based on heliospheric ensemble modeling carried out at the Moon to Mars Space Weather Analysis Office, it is estimated that the CME may impact NASA missions near Earth. Out of 24 ensemble members (see notes section), 24 (100%) indicate impact at NASA missions near Earth. Ensemble simulations indicate that the leading edge of the CME will reach NASA missions near Earth between about 2026-01-20T00:07Z and 2026-01-20T03:47Z (average arrival 2026-01-20T01:50Z). The ensemble-based forecast indicates that there is a 100% chance for the maximum Kp index to be in the 8-8 range (severe).
Links to the ensemble details of the modeled event:
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-01-18_ncmes1_sims24_LAHAINA093/20260118_180900_ncmes1_sims24_LAHAINA093_anim_tim-den.gif
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-01-18_ncmes1_sims24_LAHAINA093/20260118_180900_ncmes1_sims24_LAHAINA093_arrival_Earth.gif
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-01-18_ncmes1_sims24_LAHAINA093/20260118_180900_ncmes1_sims24_LAHAINA093_Earth_stack.gif
## Notes:
The CME event with ID 2026-01-18T18:09:00-CME-001 is also predicted to impact Juno at 2026-01-29T09:14Z, Solar Orbiter at 2026-01-19T17:18Z, OSIRIS-APEX at 2026-01-20T13:00Z (glancing blow), and STEREO A at 2026-01-21T04:00Z (glancing blow) (plus minus 7 hours) (see notifications 20260118-AL-005, 20260119-AL-001).
This CME event (2026-01-18T18:09:00-CME-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004). It is also associated with SEP at SOHO: COSTEP 15.8-39.8 MeV with ID 2026-01-18T22:33:00-SEP-001 (see notification 20260118-AL-006), SEP at GOES-P with ID 2026-01-18T22:55:00-SEP-001 (see notification 20260118-AL-007), SEP at SOHO: COSTEP 28.2-50.1 MeV with ID 2026-01-19T02:57:00-SEP-001 (see notification 20260119-AL-002), and SEP at STEREO A with ID 2026-01-19T10:58:00-SEP-001 (see notification 20260119-AL-003).
Ensemble CME modeling at M2M is performed by building sets of initial CME parameters and carrying out separate simulations for each set. This approach allows a mapping of initial CME parameter uncertainties into a statistical characterization of CME arrival times and impact at locations of interest.
Description of links: For each location, the first link shows the WSA-ENLIL+Cone model animation for the median CME input parameters, the second link shows the probabilistic distribution of predicted arrival times histogram, and the third link shows a stack plot of the WSA-ENLIL+Cone modeled magnetic field, velocity, density, and temperature for all ensemble members.
For the full details of the modeled event, please go here:
https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-01-18_ncmes1_sims24_LAHAINA093/Detailed_results_20260118_180900_ncmes1_sims24_LAHAINA093.txt
###
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (STEREO A)
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## Message Issue Date: 2026-01-19T13:49:58Z
## Message ID: 20260119-AL-003
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## 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:
Solar energetic particle event detected by STEREO A. The flux of 13-100 MeV protons exceeds 10^(-1) pfu/MeV starting at 2026-01-19T10:58Z.
NASA spacecraft located near STEREO A can be impacted.
Activity ID: 2026-01-19T10:58:00-SEP-001.
## Notes:
This SEP event (2026-01-19T10:58:00-SEP-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004) and CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (SOHO)
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## Message Issue Date: 2026-01-19T13:45:12Z
## Message ID: 20260119-AL-002
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## 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:
Solar energetic particle event detected by SOHO. The flux of one or more of the >28.2 MeV protons channels exceeds 10^(-1) pfu/MeV starting at 2026-01-19T02:57Z.
NASA spacecraft at L1 and near-Earth orbits can be impacted.
Activity ID: 2026-01-19T02:57:00-SEP-001.
## Notes:
This SEP event (2026-01-19T02:57:00-SEP-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004) and CME with ID 2026-01-18T18:09:00-CME-001 (see notifications 20260118-AL-005, 20260119-AL-001).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (Juno, Solar Orbiter, OSIRIS-APEX, STEREO A, Missions Near Earth)
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## Message Issue Date: 2026-01-19T07:24:38Z
## Message ID: 20260119-AL-001
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## 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:
Update on CME with ID 2026-01-18T18:09:00-CME-001 (see previous notification 20260118-AL-005). 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 may affect Juno, Solar Orbiter, OSIRIS-APEX (glancing blow), and STEREO A (glancing blow). The leading edge of the CME will reach Juno at 2026-01-29T09:14Z and Solar Orbiter at 2026-01-19T17:18Z, and its flank may reach OSIRIS-APEX at 2026-01-20T13:00Z and STEREO A at 2026-01-21T04:00Z (plus minus 7 hours).
The simulation also indicates that the CME may impact NASA missions near Earth. Simulations indicate that the leading edge of the CME will reach NASA missions near Earth at about 2026-01-20T01:07Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 8-8 (severe).
Updated CME parameters are (O-type):
Start time of the event: 2026-01-18T18:09Z.
Estimated speed: ~1473 km/s.
Estimated opening half-angle: 46 deg.
Direction (lon./lat.): -22/-6 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-01-18T18:09:00-CME-001
Links to the movies of the modeled event (includes CME: 2026-01-18T18:09:00-CME-001):
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20260118_201700_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201700_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201700_5.5_ENLIL_CONE_Juno_timeline.gif
## Notes:
This CME event (2026-01-18T18:09:00-CME-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004). It is also associated with SEP at SOHO with ID 2026-01-18T22:33:00-SEP-001 (see notification 20260118-AL-006) and SEP at GOES-P with ID 2026-01-18T22:55:00-SEP-001 (see notification 20260118-AL-007).
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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (GOES)
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## Message Issue Date: 2026-01-18T23:11:09Z
## Message ID: 20260118-AL-007
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## 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:
Solar energetic particle event detected by GOES. The flux of > 10 MeV protons exceeds 10 pfu starting at 2026-01-18T22:55Z.
NASA spacecraft at MEO, GEO and other high-altitude orbits and high-inclination LEO can be impacted.
Activity ID: 2026-01-18T22:55:00-SEP-001.
## Notes:
This SEP event (2026-01-18T22:55:00-SEP-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004) and CME with ID 2026-01-18T18:09:00-CME-001 (see notification 20260118-AL-005).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (SOHO)
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## Message Issue Date: 2026-01-18T22:53:55Z
## Message ID: 20260118-AL-006
##
## 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:
Solar energetic particle event detected by SOHO. The flux of one or more of the >15.8 MeV protons channels exceeds 10^(-1) pfu/MeV starting at 2026-01-18T22:33Z.
NASA spacecraft at L1 and near-Earth orbits can be impacted.
Activity ID: 2026-01-18T22:33:00-SEP-001.
## Notes:
This SEP event (2026-01-18T22:33:00-SEP-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004) and CME with ID 2026-01-18T18:09:00-CME-001 (see notification 20260118-AL-005).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juno, Solar Orbiter, OSIRIS-APEX, Missions Near Earth)
##
## Message Issue Date: 2026-01-18T21:39:21Z
## Message ID: 20260118-AL-005
##
## 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:
O-type CME detected by STEREO A / GOES.
Start time of the event: 2026-01-18T18:09Z.
Estimated speed: ~1431 km/s.
Estimated opening half-angle: 41 deg.
Direction (lon./lat.): -27/-3 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-01-18T18:09:00-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 may affect Juno, Solar Orbiter, and OSIRIS-APEX (glancing blow). The flank of the CME will reach Juno at 2026-01-29T16:01Z, Solar Orbiter at 2026-01-19T18:15Z, and OSIRIS-APEX at 2026-01-20T17:00Z (plus minus 7 hours).
The simulation also indicates that the CME may impact NASA missions near Earth. Simulations indicate that the leading edge of the CME will reach NASA missions near Earth at about 2026-01-20T02:18Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 8-8 (severe).
Links to the movies of the modeled event (includes CME: 2026-01-18T18:09:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_2.0_ENLIL_CONE_SolO_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_2.0_ENLIL_CONE_Osiris_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20260118_201400_5.5_ENLIL_CONE_Juno_timeline.gif
## Notes:
This CME event (2026-01-18T18:09:00-CME-001) is associated with X1.9 flare from Active Region 14341 (S15E20) with ID 2026-01-18T17:27:00-FLR-001 which peaked at 2026-01-18T18:09Z (see notification 20260118-AL-004).
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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - X1.9 Flare
##
## Message Issue Date: 2026-01-18T18:27:36Z
## Message ID: 20260118-AL-004
##
## 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:
Significant flare detected by GOES.
Flare start time: 2026-01-18T17:27Z.
Flare peak time: 2026-01-18T18:09Z.
Flare intensity: X1.9 class.
Source region: S15E20 (Active Region 14341) (based on SDO imagery).
Increased energetic proton fluxes possible. Updates on this event will be provided when available.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juice)
##
## Message Issue Date: 2026-01-18T18:02:30Z
## Message ID: 20260118-AL-003
##
## 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:
O-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-01-18T08:36Z.
Estimated speed: ~1123 km/s.
Estimated opening half-angle: 10 deg.
Direction (lon./lat.): 111/-2 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-01-18T08:36:00-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 Juice (minor impact). The leading edge of the CME will reach Juice at 2026-01-22T16:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-01-18T08:36:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Continued Radiation Belt Enhancement
##
## Message Issue Date: 2026-01-18T13:09:29Z
## Message ID: 20260118-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 remains elevated, recently crossing the threshold of 1000 pfu at 2026-01-18T06:10Z.
The elevated energetic electron flux levels observed since 2026-01-12T10:05Z (see notifications 20260112-AL-002, 20260114-AL-001, and 20260116-AL-001) are likely caused by the combined arrival of CME with ID 2026-01-08T05:53:00-CME-001 (see notifications 20260108-AL-001 and 20260109-AL-002), CME with ID 2026-01-08T15:48:00-CME-001 (see notification 20260109-AL-003), CME with ID 2026-01-08T17:00:00-CME-001 (see notifications 20260109-AL-001 and 20260109-AL-003), and CME with ID 2026-01-08T17:12:00-CME-001 (see notification 20260109-AL-003).
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: 2026-01-12T10:05:00-RBE-001.
## Notes:
The arrival of these CMEs is also associated with geomagnetic storm with ID 2026-01-10T18:00:00-GST-001 (see notifications 20260110-AL-004, 20260110-AL-005) and with magnetopause crossing with ID 2026-01-11T05:56:00-MPC-001 (see notification 20260111-AL-002).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Europa Clipper, Juice, STEREO A)
##
## Message Issue Date: 2026-01-18T00:25:45Z
## Message ID: 20260118-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: 2026-01-17T07:00Z.
Estimated speed: ~843 km/s.
Estimated opening half-angle: 26 deg.
Direction (lon./lat.): 82/-36 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-01-17T07:00:00-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 Europa Clipper (minor impact), Juice (glancing blow), and STEREO A (glancing blow). The leading edge of the CME will reach Europa Clipper at 2026-01-24T12:00Z and its flanks will reach Juice at 2026-01-21T18:00Z and STEREO A at 2026-01-21T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-01-17T07:00:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Juice, STEREO A)
##
## Message Issue Date: 2026-01-17T21:46:57Z
## Message ID: 20260117-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:
O-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-01-17T03:00Z.
Estimated speed: ~1273 km/s.
Estimated opening half-angle: 14 deg.
Direction (lon./lat.): 90/3 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-01-17T03:00:00-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 Lucy (minor impact), Europa Clipper (minor impact), Juice (glancing blow), and STEREO A (glancing blow). The leading edge of the CME will reach Lucy at 2026-01-30T04:00Z and Europa Clipper at 2026-01-23T12:00Z, and its flanks will reach Juice at 2026-01-21T04:00Z and STEREO A at 2026-01-21T04:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-01-17T03:00:00-CME-001):
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20260117_053800_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20260117_053800_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20260117_053800_5.5_ENLIL_CONE_Lucy_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20260117_053800_5.5_ENLIL_CONE_EuropaClippr_timeline.gif
## Notes:
This CME event (2026-01-17T03:00:00-CME-001) is associated with C4.7 flare from Active Region 14336 (S09W88) with ID 2026-01-17T02:42:00-FLR-001 which peaked at 2026-01-17T02:46Z.
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
