Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: CME
Message ID: 20251121-AL-001
Issue Time: 2025-11-21T14:34Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Juice)
##
## Message Issue Date: 2025-11-21T14:34:23Z
## Message ID: 20251121-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 / STEREO A / SOHO.
Start time of the event: 2025-11-21T10:30Z.
Estimated speed: ~512 km/s.
Estimated opening half-angle: 14 deg.
Direction (lon./lat.): 112/-2 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-21T10:30:00-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 Lucy (glancing blow), Europa Clipper (glancing blow), and Juice (glancing blow). The flank of the CME may reach Lucy at 2025-12-03T10:00Z, Europa Clipper at 2025-11-28T12:00Z, and Juice at 2025-11-24T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-21T10:30:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_2.0_ENLIL_CONE_Juice_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_5.5_ENLIL_CONE_Lucy_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251121_163500_5.5_ENLIL_CONE_EuropaClippr_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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Juice)
##
## Message Issue Date: 2025-11-20T19:51:34Z
## Message ID: 20251120-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.
Start time of the event: 2025-11-20T15:23Z.
Estimated speed: ~756 km/s.
Estimated opening half-angle: 40 deg.
Direction (lon./lat.): 164/-29 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-20T15:23:00-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), and Juice. The leading edge of the CME will reach Lucy at 2025-12-01T18:00Z, Europa Clipper at 2025-11-27T00:00Z, and Juice at 2025-11-23T09:03Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-20T15:23:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_2.0_ENLIL_CONE_Juice_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_5.5_ENLIL_CONE_Lucy_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_194600_5.5_ENLIL_CONE_EuropaClippr_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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Juice)
##
## Message Issue Date: 2025-11-20T13:32:47Z
## Message ID: 20251120-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: 2025-11-20T01:08Z.
Estimated speed: ~507 km/s.
Estimated opening half-angle: 41 deg.
Direction (lon./lat.): 151/-37 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-20T01:08:00-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), and Juice. The leading edge of the CME will reach Lucy at 2025-11-30T20:00Z, Europa Clipper at 2025-11-26T20:00Z, and Juice at 2025-11-23T04:30Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-20T01:08:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_2.0_ENLIL_CONE_Juice_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_5.5_ENLIL_CONE_Lucy_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251120_073900_5.5_ENLIL_CONE_EuropaClippr_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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information (CCMC DONKI)
## Message Type: Weekly Space Weather Summary Report for November 12, 2025 - November 18, 2025
##
## Message Issue Date: 2025-11-19T23:18:12Z
## Report Coverage Begin Date: 2025-11-12T00:00Z
## Report Coverage End Date: 2025-11-18T23:59Z
## Message ID: 20251119-7D-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:
Solar activity reached high levels during this reporting period with 1 X-class flare, 3 M-class flares, 3 O-type CMEs, and 16 C-type CMEs (see details below).
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 was estimated that the following CMEs were predicted to impact missions near Earth:
CME Starting time | Predicted Impact (plus minus 7 hours)
-----------------------------------------------------------------------------
2025-11-13T19:53Z NASA missions near Earth at 2025-11-16T12:00Z (glancing blow), Kp index 4-6 (below minor to moderate)
(see notification 20251114-AL-001).
2025-11-14T08:00Z NASA missions near Earth at 2025-11-16T10:00Z (glancing blow), Kp index 4-7 (below minor to strong)
(see notifications 20251114-AL-008, 20251114-AL-010).
The combined arrival of the above CMEs was likely detected at L1 around 2025-11-16T01:32Z.
It was also estimated that the following CMEs were predicted to impact the listed locations:
CME Starting time | Predicted Impacts (plus minus 7 hours)
-----------------------------------------------------------------------------
2025-11-13T03:24Z STEREO A at 2025-11-15T12:36Z, OSIRIS-APEX at 2025-11-15T18:00Z (glancing blow), Solar Orbiter at 2025-11-15T12:00Z (glancing blow), Juno at 2025-11-29T00:00Z (minor impact) (see notifications 20251113-AL-005, 20251113-AL-006).
2025-11-13T19:53Z BepiColombo at 2025-11-14T18:00Z (glancing blow) (see notification 20251114-AL-001).
2025-11-14T01:25Z Parker Solar Probe at 2025-11-15T16:00Z (glancing blow) (see notification 20251114-AL-011).
2025-11-14T08:00Z BepiColombo at 2025-11-14T20:07Z, OSIRIS-APEX at 2025-11-16T01:12Z, Solar Orbiter at 2025-11-15T20:41Z, STEREO A at 2025-11-15T20:37Z, Juno at 2025-11-26T00:00Z (glancing blow) (see notifications 20251114-AL-008, 20251114-AL-010).
2025-11-17T15:15Z Parker Solar Probe at 2025-11-18T20:00Z (glancing blow) (see notification 20251117-AL-001).
2025-11-17T15:36Z Juice at 2025-11-20T00:00Z (glancing blow), Europa Clipper at 2025-11-24T12:00Z (glancing blow) (see notification 20251117-AL-002).
2025-11-18T01:00Z Juice at 2025-11-21T11:00Z (glancing blow) (see notification 20251118-AL-001).
2025-11-18T16:00Z Juice at 2025-11-21T15:00Z (glancing blow), Europa Clipper at 2025-11-25T12:00Z (glancing blow), Lucy at 2025-11-30T05:00Z (glancing blow) (see notification 20251118-AL-002).
Geomagnetic activity reached severe levels with Kp index (a measure of geomagnetic activity, ranging 0-9) <=8.67 for the reporting period. The highest value of Kp = 8.67 occurred during the synoptic period of 2025-11-12T00:00Z to 2025-11-12T03:00Z (see notifications 20251112-AL-004, 20251112-AL-005). This enhancement in geomagnetic activity was associated with the interplanetary shock detected at L1 by DSCOVR and ACE at 2025-11-11T22:11Z (see notification 20251111-AL-012) which was likely associated with the combined arrival of the C-type CME first seen in SOHO LASCO C2 at 2025-11-09T07:24Z and the O-type CME first seen in SOHO LASCO C2 at 2025-11-10T09:36Z, with possible additional influences from the S-type CME first seen in STEREO A COR2 at 2025-11-07T12:53Z. Simulations indicated that the magnetopause separating magnetospheric and solar wind plasma was close to geosynchronous orbit starting at 2025-11-12T00:59Z (see notification 20251112-AL-001).
Geomagnetic activity was enhanced again, reaching moderate levels with Kp index = 7.33 for the synoptic period of 2025-11-12T18:00Z to 2025-11-12T21:00Z (see notifications 20251112-AL-009, 20251113-AL-002, 20251113-AL-003) due to an additional interplanetary shock detected at L1 by DSCOVR and ACE on 2025-11-12T18:52Z which was likely associated with the combined arrival of the CMEs first seen in STEREO A COR2 at 2025-11-10T13:08:00Z and 2025-11-11T10:23Z. Simulations indicated that the magnetopause separating magnetospheric and solar wind plasma was close to geosynchronous orbit starting at 2025-11-13T01:27Z (see notification 20251113-AL-001).
The > 2.0 MeV energetic electron flux in the Earth's outer radiation belt was elevated above the threshold level of 1000 pfu at the beginning of the reporting period due to a threshold crossing from the previous reporting period starting at 2025-11-08T15:15Z (see notifications 20251108-AL-003, 20251108-AL-004, 20251110-AL-011). This elevation of energetic electron flux levels was likely associated with the combined arrivals of the coronal hole high speed stream starting on 2025-11-06, the C-type CME first seen in STEREO A COR2 at 2025-11-04T22:53Z, and the O-type CMEs first seen in STEREO A COR2 at 2025-11-05T10:53Z and 2025-11-05T22:23Z, respectively. The energetic electron flux levels returned to background levels on 2025-11-12.
The >2.0 MeV energetic electron flux levels crossed the threshold of 1000 pfu again at 2025-11-13T14:25Z (see notification 20251113-AL-004). This brief subsequent elevation of energetic electron flux levels may have been caused by the combined arrivals of the C-type CME first seen in SOHO LASCO C2 at 2025-11-09T07:24Z and the O-type CME first seen in SOHO LASCO C2 at 2025-11-10T09:36Z with additional influence from the arrival of the O-type CME first seen in STEREO A COR2 at 2025-11-11T10:23Z. The energetic electron flux levels returned to background levels on 2025-11-14.
A solar energetic particle event was detected at SOHO and GOES during the reporting period. Multiple solar energetic particle events were detected at STEREO A during the reporting period. The protons at SOHO and GOES remained elevated at the beginning of the reporting period due to a threshold crossing from the previous reporting period on 2025-11-11. At STEREO A, the flux of the 13-100 MeV protons exceeded 10^(-1) pfu/MeV starting at 2025-11-12T01:48Z (see notifications 20251112-AL-002, 20251112-AL-003). This SEP event was associated with the X5.1 flare peaking at 2025-11-11T10:04Z from Active Region 14274 and the associated O-type CME first seen in STEREO A COR2 at 2025-11-11T10:23Z. The protons at STEREO A, SOHO, and GOES returned to near background levels by 2025-11-14.
At GOES, the flux of > 10 MeV protons exceeded 10 pfu starting at 2025-11-14T09:20Z (see notifications 20251114-AL-003, 20251114-AL-005). At SOHO, the flux of one or more of the >15.8 MeV protons channels exceeded 10^(-1) pfu/MeV starting at 2025-11-14T12:32Z (see notification 20251114-AL-009). At STEREO A, the flux of the 13-100 MeV protons exceeded 10^(-1) pfu/MeV starting at 2025-11-14T12:33Z (see notifications 20251114-AL-006, 20251114-AL-007). These SEP events were associated with the X4.0 flare peaking at 2025-11-14T08:30Z from Active Region 14274 and the associated O-type CME first seen in SOHO LASCO C2 at 2025-11-14T08:00Z. The protons at SOHO and GOES remained elevated but below threshold through 2025-11-17 and returned to background levels by the end of the reporting period. The protons at STEREO A began to decline to near background levels later on 2025-11-14.
At STEREO A, the flux of 13-100 MeV protons briefly exceeded 10^(-1) pfu/MeV starting at 2025-11-15T03:42Z (see notifications 20251114-AL-006, 20251114-AL-007) due to the arrival of the C-type CME first seen in SOHO LASCO C2 at 2025-11-13T03:24Z as detected by STEREO A at 2025-11-15T07:08Z. The flux of 13-100 MeV protons at STEREO A exceeded 10^(-1) pfu/MeV again at 2025-11-15T09:34Z (see notification 20251115-AL-003) likely due to the arrival of the O-type CME first seen in SOHO LASCO C2 at 2025-11-14T08:00Z as detected by STEREO A at 2025-11-15T15:56Z. The protons at STEREO A returned to background levels on 2025-11-16.
Space Weather Impact:
Space weather impacts on NASA spacecraft are expected to have been moderate to high this reporting period due to the solar energetic particle events and elevated energetic electron flux in the Earths outer radiation belt described above.
CMEs (>500 km/s):
Earth directed:
Starting time Speed (km/s) Type Direction (LON/LAT in HEEQ) Half-Angle width (degrees) Detecting spacecraft (real-time)
2025-11-13T18:38Z ~602 C -20/-19 15 STEREO A, SOHO, GOES
2025-11-14T08:00Z ~1534 O 62/9 40 SOHO, STEREO A, GOES
Non-Earth directed (POS = Plane Of Sky):
Starting time Speed (km/s) Type Direction (LON/LAT in HEEQ) Half-Angle width (degrees) Detecting spacecraft (real-time)
2025-11-12T17:45Z ~529 C 53/48 15 GOES, STEREO A
2025-11-13T01:36Z ~553 C 116/33 37 SOHO, STEREO A
2025-11-13T03:24Z ~936 C 51/5 16 SOHO, STEREO A, GOES
2025-11-13T18:38Z ~602 C -20/-19 15 STEREO A, SOHO, GOES
2025-11-14T01:25Z ~1081 O -119/-37 24 SOHO, STEREO A, GOES
2025-11-14T19:45Z ~615 C 56/51 14 GOES, STEREO A
2025-11-15T05:00Z ~571 C -56/43 10 SOHO, STEREO A, GOES
2025-11-15T22:36Z ~768 C 20/58 29 SOHO, GOES
2025-11-16T08:24Z ~948 C 95/32 27 SOHO, STEREO A, GOES
2025-11-16T09:36Z ~594 C 133/39 20 SOHO, STEREO A, GOES
2025-11-16T11:36Z ~693 C NONE(POS)/34 31 SOHO, GOES
2025-11-16T15:24Z ~716 C NONE(POS)/46 13 SOHO, GOES
2025-11-16T20:00Z ~574 C 127/35 17 SOHO, STEREO A, GOES
2025-11-17T15:15Z ~1360 O -70/-33 17 SOHO, STEREO A, GOES
2025-11-17T15:36Z ~733 C 116/11 24 SOHO, STEREO A, GOES
2025-11-18T01:00Z ~956 C 116/29 19 GOES
2025-11-18T03:38Z ~615 C NONE(POS)/-36 10 STEREO A
2025-11-18T16:00Z ~683 C 125/30 29 SOHO, STEREO A, GOES
## Space Weather Outlook:
## Outlook Coverage Begin Date: 2025-11-19T00:00Z
## Outlook Coverage End Date: 2025-11-25T23:59Z
Solar activity is expected to vary between low and moderate levels during the outlook period. There are currently three Active Regions on the Earth-facing disk. Active Region 14274 produced an X4.0 flare on 2025-11-14 before rotating off of the Earth-facing disk by 2025-11-15. Active Region 14284 (S07W45) has produced C-class flaring during the reporting period and may continue to produce similar levels of flaring activity during the outlook period.
Geomagnetic activity is expected to vary between low and moderate levels during the outlook period. The energetic electron flux levels at GOES exceeded the threshold of 1000 pfu starting at 2025-11-19T12:25Z (see notifications 20251119-AL-001, 20251119-AL-002) and may continue to be elevated during the outlook period due to the combined arrival of the S-type CME first seen in STEREO A COR2 at 2025-11-13T19:53Z and the O-type CME first seen in SOHO LASCO C2 at 2025-11-14T08:00Z.
## 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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Parker Solar Probe)
##
## Message Issue Date: 2025-11-19T16:32:47Z
## Message ID: 20251119-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:
C-type CME detected by GOES.
Start time of the event: 2025-11-19T11:00Z.
Estimated speed: ~582 km/s.
Estimated opening half-angle: 17 deg.
Direction (lon./lat.): -90/19 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-19T11:00:00-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 Parker Solar Probe (glancing blow). The flank of the CME will reach Parker Solar Probe at 2025-11-21T01:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-19T11:00:00-CME-001):
This CME event (2025-11-19T11:00:00-CME-001) is associated with a C9.9 flare from an unnumbered region located at approximately N15E90 with ID 2025-11-19T09:29:00-FLR-001 which peaked at 2025-11-19T09:53Z.
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 - Radiation Belt Enhancement
##
## Message Issue Date: 2025-11-19T12:39:14Z
## Message ID: 20251119-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 2025-11-19T12:25Z.
The elevated energetic electron flux levels are caused by the combined arrival of CME with ID 2025-11-13T19:53:00-CME-001 (see notification 20251114-AL-001) and CME with ID 2025-11-14T08:00:00-CME-001 (see notifications 20251114-AL-008, 20251114-AL-010, and 20251116-AL-001).
NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.
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: 2025-11-19T12:33:59Z
## Message ID: 20251119-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 2025-11-19T12:25Z.
NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Juice)
##
## Message Issue Date: 2025-11-18T23:31:33Z
## Message ID: 20251118-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: 2025-11-18T16:00Z.
Estimated speed: ~683 km/s.
Estimated opening half-angle: 29 deg.
Direction (lon./lat.): 125/30 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-18T16:00:00-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 (glancing blow), Europa Clipper (glancing blow), and Juice (glancing blow). The flank of the CME will reach Lucy at 2025-11-30T05:00Z, Europa Clipper at 2025-11-25T12:00Z, and Juice at 2025-11-21T15:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-18T16:00:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_2.0_ENLIL_CONE_Juice_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_5.5_ENLIL_CONE_Lucy_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20251118_211300_5.5_ENLIL_CONE_EuropaClippr_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
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juice)
##
## Message Issue Date: 2025-11-18T03:41:20Z
## Message ID: 20251118-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: 2025-11-18T01:00Z.
Estimated speed: ~773 km/s.
Estimated opening half-angle: 24 deg.
Direction (lon./lat.): 114/27 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-11-18T01:00:00-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 Juice (glancing blow). The flank of the CME may reach Juice at 2025-11-21T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-11-18T01:00:00-CME-001):
