Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: RBE
Message ID: 20260823-AL-003
Issue Time: 2026-08-23T14:58Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Continued Radiation Belt Enhancement
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## Message Issue Date: 2026-08-23T14:58:42Z
## Message ID: 20260823-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:
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 2026-08-23T09:15Z.
The elevated energetic electron flux levels observed since 2026-08-21T10:15Z are caused by coronal hole high speed stream starting on 2026-08-18 reaching maximum sustained speeds of approximately 630 km/s (see notifications 20260821-AL-001 and 20260821-AL-002). The solar wind speed observed at L1 is currently around 410 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 - CME update (Mars, Psyche, STEREO A)
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## Message Issue Date: 2026-08-23T14:20:03Z
## Message ID: 20260823-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:
Update on CME with ID 2026-08-23T00:12:00-CME-001 (see previous notification 20260823-AL-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 Mars, Psyche, and STEREO A (glancing blow). The leading edge of the CME will reach Mars at 2026-08-26T10:03Z and Psyche at 2026-08-26T14:53Z (plus minus 7 hours). The flank of the CME may reach STEREO A at 2026-08-25T08:00Z (plus minus 7 hours).
Updated CME parameters are (event downgraded to C-type):
Start time of the event: 2026-08-23T00:12Z.
Estimated speed: ~959 km/s.
Estimated opening half-angle: 16 deg.
Direction (lon./lat.): 95/10 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-23T00:12:00-CME-001
Links to the movies of the modeled event (includes CME: 2026-08-23T00:12:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Mars, Psyche, STEREO A)
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## Message Issue Date: 2026-08-23T02:19:07Z
## Message ID: 20260823-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:
O-type CME detected by GOES / SOHO.
Start time of the event: 2026-08-23T00:12Z.
Estimated speed: ~1148 km/s.
Estimated opening half-angle: 10 deg.
Direction (lon./lat.): 90/7 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-23T00:12:00-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 Mars, Psyche (minor impact), and STEREO A (glancing blow). The leading edge of the CME will reach Mars at 2026-08-26T12:46Z and Psyche at 2026-08-26T13:00Z, and the flank of the CME will reach STEREO A at 2026-08-25T07:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-23T00:12:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Mars, Psyche)
##
## Message Issue Date: 2026-08-22T14:03:31Z
## Message ID: 20260822-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:
C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-08-22T06:30Z.
Estimated speed: ~727 km/s.
Estimated opening half-angle: 12 deg.
Direction (lon./lat.): 104/2 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-22T06:30:00-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 Mars (minor impact) and Psyche (minor impact). The leading edge of the CME may reach Mars at 2026-08-26T01:00Z and Psyche at 2026-08-26T06:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-22T06:30:00-CME-001):
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: 2026-08-21T20:54:52Z
## Message ID: 20260821-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:
Solar energetic particle event detected by STEREO A. The flux of 13-100 MeV protons exceeds 10^(-1) pfu/MeV starting at 2026-08-21T17:33Z.
NASA spacecraft located near STEREO A can be impacted.
Activity ID: 2026-08-21T17:33:00-SEP-001.
## Notes:
This SEP event (2026-08-21T17:33:00-SEP-001) is associated with M1.6 flare from AR 14507 (N04W88) with ID 2026-08-21T09:09:00-FLR-001 which peaked at 2026-08-21T09:57Z, and CME with ID 2026-08-21T09:36:00-CME-001 (see notifications 20260821-AL-003, 20260821-AL-004).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME update (Juno, Mars, Psyche, STEREO A, BepiColombo)
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## Message Issue Date: 2026-08-21T14:43:00Z
## Message ID: 20260821-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:
Update on CME with ID 2026-08-21T09:36:00-CME-001 (see previous notification 20260821-AL-003). 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). The flank of the CME may reach Juno at 2026-09-09T00:00Z (plus minus 7 hours).
Previous simulations also estimate that the CME may affect Mars, Psyche, STEREO A and BepiColombo (glancing blow). The leading edge of the CME will reach Mars at 2026-08-24T00:19Z, Psyche at 2026-08-24T06:13Z, and STEREO A at 2026-08-22T20:14Z (plus minus 7 hours). The flank of the CME may reach BepiColombo at 2026-08-22T14:00Z (plus minus 7 hours).
CME parameters are (O-type):
Start time of the event: 2026-08-21T09:36Z.
Estimated speed: ~1329 km/s.
Estimated opening half-angle: 45 deg.
Direction (lon./lat.): 88/18 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-21T09:36:00-CME-001
Links to the movies of the modeled event (includes CME: 2026-08-21T09:36:00-CME-001):
(b) 5.5 AU outer boundary
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260821_122300_5.5_anim.tim-den.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260821_122300_5.5_anim.tim-vel.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260821_122300_5.5_ENLIL_CONE_Juno_timeline.gif
https://iswa.gsfc.nasa.gov/api/redirect?filename=20260821_122300_5.5_ENLIL_CONE_Psyche_timeline.gif
## Notes:
This CME event (2026-08-21T09:36:00-CME-001) is associated with M1.6 flare with ID 2026-08-21T09:09:00-FLR-001 from Active Region 14507 (N04W88) which peaked at 2026-08-21T09:57Z.
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 (Mars, Psyche, STEREO A, BepiColombo)
##
## Message Issue Date: 2026-08-21T14:02:39Z
## Message ID: 20260821-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: 2026-08-21T09:36Z.
Estimated speed: ~1329 km/s.
Estimated opening half-angle: 45 deg.
Direction (lon./lat.): 88/18 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-21T09:36:00-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 Mars, Psyche, STEREO A, and BepiColombo (glancing blow). The leading edge of the CME will reach Mars at 2026-08-24T00:19Z, Psyche at 2026-08-24T06:13Z, and STEREO A at 2026-08-22T20:14Z (plus minus 7 hours). The flank of the CME may reach BepiColombo at 2026-08-22T14:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-21T09:36:00-CME-001):
This CME event (2026-08-21T09:36:00-CME-001) is associated with M1.6 flare with ID 2026-08-21T09:09:00-FLR-001 from Active Region 14507 (N04W88) which peaked at 2026-08-21T09:57Z.
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: 2026-08-21T11:22:27Z
## Message ID: 20260821-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 2026-08-21T10:15Z.
The elevated energetic electron flux levels are caused by the coronal hole high speed stream starting on 2026-08-18, reaching maximum sustained speeds of approximately 570 km/s. The solar wind speed observed at L1 is currently around 500 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: 2026-08-21T10:24:06Z
## Message ID: 20260821-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 2026-08-21T10:15Z.
NASA spacecraft at GEO, MEO and other orbits passing through or in the vicinity of the Earth's outer radiation belt can be impacted.
