Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: RBE
Message ID: 20260328-AL-002
Issue Time: 2026-03-28T16:01Z
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: 2026-03-28T16:01:38Z
## Message ID: 20260328-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 2026-03-28T14:55Z.
The elevated energetic electron flux levels observed since 2026-03-22T14:15Z (see notifications 20260322-AL-003, 20260324-AL-001, 20260326-AL-001) are likely caused by the combined arrival of the CMEs with IDs 2026-03-17T05:08:00-CME-001, 2026-03-17T06:38:00-CME-001, 2026-03-17T08:23:00-CME-001, and ID 2026-03-17T10:53:00-CME-001 (see notification 20260320-AL-001), as well as the arrival of CME with ID 2026-03-18T09:23:00-CME-001 (see notifications 20260318-AL-002, 20260318-AL-003, and 20260320-AL-004), and the arrival of a coronal hole high speed stream starting on 2026-03-21, reaching a maximum speed of approximately 700km/s. The solar wind speed observed at L1 is currently around 355km/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.
Activity ID: 2026-03-22T14:15:00-RBE-001.
## Notes:
The arrival of the CME with ID 2026-03-18T09:23:00-CME-001 was associated with geomagnetic storm with ID 2026-03-20T18:00:00-GST-001 and modeled magnetopause crossing with ID 2026-03-20T21:13:00-MPC-001.
The arrival of the coronal hole high speed stream starting on 2026-03-21 was associated with a strong geomagnetic storm with ID 2026-03-22T09:00:00-GST-001.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Juno)
##
## Message Issue Date: 2026-03-28T13:42:29Z
## Message ID: 20260328-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: 2026-03-28T03:48Z.
Estimated speed: ~823 km/s.
Estimated opening half-angle: 40 deg.
Direction (lon./lat.): -76/-28 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-03-28T03:48:00-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 Juno (glancing blow). The flank of the CME will reach Juno at 2026-04-11T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-03-28T03:48:00-CME-001):
(a) 2 AU outer boundary
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_2.0_anim.tim-den.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_2.0_anim.tim-vel.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_2.0_ENLIL_CONE_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_5.5_anim.tim-den.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_5.5_anim.tim-vel.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260328_083000_5.5_ENLIL_CONE_Juno_timeline.gif
## Notes:
This CME event (2026-03-28T03:48:00-CME-001) is associated with M1.3 flare with ID 2026-03-28T02:16:00-FLR-001 from Active Region 14405 (S24E70) which peaked at 2026-03-28T04:18Z.
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 - CMEs (Juno)
##
## Message Issue Date: 2026-03-27T15:24:49Z
## Message ID: 20260327-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:
Multiple CMEs have been detected as follows:
1: C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-03-27T01:26Z.
Estimated speed: ~719 km/s.
Estimated opening half-angle: 35 deg.
Direction (lon./lat.): -92/-29 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-03-27T01:26:00-CME-001
2: C-type CME detected by GOES / SOHO.
Start time of the event: 2026-03-27T08:24Z.
Estimated speed: ~609 km/s.
Estimated opening half-angle: 29 deg.
Direction (lon./lat.): -80/-22 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-03-27T08:24:00-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 CMEs may impact Juno (minor impact). The combined leading edge of the CMEs may reach Juno at 2026-04-11T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-03-27T01:26:00-CME-001, 2026-03-27T08:24:00-CME-001):
(a) 2 AU outer boundary
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_2.0_anim.tim-den.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_2.0_anim.tim-vel.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_2.0_ENLIL_CONE_timeline.gif
(b) 5.5 AU outer boundary
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_5.5_anim.tim-den.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_5.5_anim.tim-vel.gif
https://iswa.ccmc.gsfc.nasa.gov/api/redirect?filename=20260327_065100_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
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: 2026-03-26T16:06:53Z
## Message ID: 20260326-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, recently crossing the threshold of 1000 pfu at 2026-03-25T08:15Z.
The elevated energetic electron flux levels observed since 2026-03-22T14:15Z (see notifications 20260322-AL-003, 20260324-AL-001) are likely caused by the combined arrival of CME with ID 2026-03-17T05:08:00-CME-001, CME with ID 2026-03-17T06:38:00-CME-001, CME with ID 2026-03-17T08:23:00-CME-001 and CME with ID 2026-03-17T10:53:00-CME-001 (see notification 20260320-AL-001), the arrival of CME with ID 2026-03-18T09:23:00-CME-001 (see notifications 20260318-AL-002, 20260318-AL-003, and 20260320-AL-004), and the arrival of a coronal hole high speed stream starting on 2026-03-21, reaching a maximum speed of approximately 700km/s. The solar wind speed observed at L1 is currently around 460km/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.
Activity ID: 2026-03-22T14:15:00-RBE-001.
## Notes:
The arrival of the CME with ID 2026-03-18T09:23:00-CME-001 was associated with a strong geomagnetic storm with ID 2026-03-20T18:00:00-GST-001 and modeled magnetopause crossing with ID 2026-03-20T21:13:00-MPC-001.
The arrival of the coronal hole high speed stream starting on 2026-03-21 was associated with a strong geomagnetic storm with ID 2026-03-22T09:00:00-GST-001.
