Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: CME
Message ID: 20250520-AL-003
Issue Time: 2025-05-20T22:48Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (BepiColombo, Parker Solar Probe)
##
## Message Issue Date: 2025-05-20T22:48:03Z
## Message ID: 20250520-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 STEREO A / GOES / SOHO.
Start time of the event: 2025-05-20T14:48Z.
Estimated speed: ~579 km/s.
Estimated opening half-angle: 14 deg.
Direction (lon./lat.): 118/7 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-05-20T14:48:00-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 (glancing blow) and Parker Solar Probe (glancing blow). The flank of the CME will reach BepiColombo at 2025-05-21T10:00Z and Parker Solar Probe at 2025-05-22T03:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-05-20T14:48:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Lucy, Europa Clipper, Mars)
##
## Message Issue Date: 2025-05-20T16:21:55Z
## Message ID: 20250520-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: 2025-05-20T10:36Z.
Estimated speed: ~784 km/s.
Estimated opening half-angle: 11 deg.
Direction (lon./lat.): -80/16 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-05-20T10:36:00-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 Lucy (glancing blow), Europa Clipper (glancing blow), and Mars (glancing blow). The flank of the CME may reach Lucy at 2025-05-27T10:00Z, Europa Clipper at 2025-05-26T08:00Z, and Mars at 2025-05-25T08:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2025-05-20T10:36:00-CME-001):
(a) 2 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_2.0_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_2.0_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_2.0_ENLIL_CONE_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_2.0_ENLIL_CONE_Mars_timeline.gif
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_5.5_anim.tim-vel.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_5.5_ENLIL_CONE_EuropaClippr_timeline.gif
http://iswa.gsfc.nasa.gov/downloads/20250520_143700_5.5_ENLIL_CONE_Lucy_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 - Continued Radiation Belt Enhancement
##
## Message Issue Date: 2025-05-20T15:17:08Z
## Message ID: 20250520-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 remains elevated above the threshold of 1000 pfu since 2025-05-20T14:20Z.
The elevated energetic electron flux levels observed since 2025-05-18T13:30Z are likely caused by the CME with ID 2025-05-12T23:48:00-CME-001 and high speed stream starting at 2025-05-17T04:16Z, reaching a maximum sustained speed of approximately 760 km/s (see notifications 20250518-AL-001 and ID 20250518-AL-002). The solar wind speed observed at L1 is currently around 550 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.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2025-05-18T14:54:18Z
## Message ID: 20250518-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 2025-05-18T13:30Z.
The elevated energetic electron flux levels are likely caused by the combined arrival of the CME with ID 2025-05-12T23:48:00-CME-001 and a high speed stream which arrived on 2025-05-17, reaching a maximum speed of approximately 760 km/s. The arrival of this CME was detected at L1 by ACE and DSCOVR at 2025-05-16T21:01Z (see Activity ID: 2025-05-16T21:01:00-IPS-001), and the geomagnetic Kp index reached level 6.33 (moderate) during the synoptic period 2025-05-16T21:00Z to 2025-05-17T00:00Z (see notifications 20250517-AL-001 and 20250517-AL-002). The solar wind speed observed at L1 is currently around 600 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.
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: 2025-05-18T13:38:05Z
## Message ID: 20250518-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 2025-05-18T13:30Z.
NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.
