Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: RBE
Message ID: 20251207-AL-001
Issue Time: 2025-12-07T15:27Z
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: 2025-12-07T15:27:37Z
## Message ID: 20251207-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 2025-12-07T14:00Z.
The elevated energetic electron flux levels observed since 2025-12-05T15:00Z (see notification 20251205-AL-001) are likely caused by the arrival of a coronal hole high speed stream starting on 2025-12-03, reaching a maximum speed of approximately 730 km/s. The solar wind speed observed at L1 is currently around 457 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 (OSIRIS-APEX, Solar Orbiter, STEREO A, Missions Near Earth)
##
## Message Issue Date: 2025-12-06T23:59:20Z
## Message ID: 20251206-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:
C-type CME detected by STEREO A / SOHO.
Start time of the event: 2025-12-06T21:12Z.
Estimated speed: ~905 km/s.
Estimated opening half-angle: 43 deg.
Direction (lon./lat.): 3/9 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-12-06T21:12:00-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 this CME may affect OSIRIS-APEX, Solar Orbiter, and STEREO A (glancing blow). The leading edge of the CME will reach OSIRIS-APEX at 2025-12-08T17:31Z and Solar Orbiter at 2025-12-08T20:08Z (plus minus 7 hours). The flank of the CME may reach STEREO A at 2025-12-08T22:00Z (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 2025-12-09T04:23Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 6-8 (moderate to severe).
Links to the movies of the modeled event (includes CME: 2025-12-06T21:12:00-CME-001):
(b) 5.5 AU outer boundary
http://iswa.gsfc.nasa.gov/downloads/20251207_003800_5.5_anim.tim-den.gif
http://iswa.gsfc.nasa.gov/downloads/20251207_003800_5.5_anim.tim-vel.gif
## Notes:
This CME event (2025-12-06T21:12:00-CME-001) is associated with M8.1 flare with ID 2025-12-06T20:29:00-FLR-001 from AR 14299 (N23E02) which peaked at 2025-12-06T20:39Z (see notifications 20251206-AL-002, 20251206-AL-003).
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 - M8.1 Flare
##
## Message Issue Date: 2025-12-06T20:54:05Z
## Message ID: 20251206-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:
Significant flare detected by GOES.
Flare start time: 2025-12-06T20:29Z.
Flare peak time: 2025-12-06T20:39Z.
Flare intensity: M8.1 class.
Source region: N23E02 (Active Region 14299) (based on GOES SUVI 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: Auto-generated Space Weather Notification - Flare intensity has crossed the threshold of M5.0
##
## Message Issue Date: 2025-12-06T20:41:17Z
## Message ID: 20251206-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:
Significant flare detected by GOES. Flare intensity has crossed the threshold of M5.0.
Flare M5.0 crossing time: 2025-12-06T20:37Z.
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 (Solar Orbiter, Missions Near Earth)
##
## Message Issue Date: 2025-12-06T00:33:13Z
## Message ID: 20251206-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 / SOHO.
Start time of the event: 2025-12-05T07:09Z.
Estimated speed: ~629 km/s.
Estimated opening half-angle: 27 deg.
Direction (lon./lat.): -14/20 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-12-05T07:09:00-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 Solar Orbiter (glancing blow). The flank of the CME will reach Solar Orbiter at 2025-12-08T00:00Z (plus minus 7 hours).
The simulation also indicates that the CME may have a glancing blow at NASA missions near Earth. Simulations indicate that the flank of the CME will reach NASA missions near Earth at about 2025-12-08T08:00Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 3-5 (below minor to minor).
Links to the movies of the modeled event (includes CME: 2025-12-05T07:09:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - Radiation Belt Enhancement
##
## Message Issue Date: 2025-12-05T15:25:56Z
## Message ID: 20251205-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 2025-12-05T15:00Z.
The elevated energetic electron flux levels are caused by the arrival of a coronal hole high speed stream which started on 2025-12-03, reaching a maximum speed of approximately 730 km/s. 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.
Activity ID: 2025-12-05T15:00:00-RBE-001.
## Notes:
The arrival of this coronal hole high speed stream was associated with a moderate geomagnetic storm with ID 2025-12-03T18:00:00-GST-001 (see notifications 20251203-AL-003, 20251203-AL-004) and Magnetopause Crossing with ID 2025-12-03T22:15:00-MPC-001 (see notification (20251203-AL-005).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CMEs (Missions Near Earth)
##
## Message Issue Date: 2025-12-04T16:36:07Z
## Message ID: 20251204-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:
Multiple CMEs have been detected as follows:
1: C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2025-12-04T03:24Z.
Estimated speed: ~516 km/s.
Estimated opening half-angle: 22 deg.
Direction (lon./lat.): -39/1 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-12-04T03:24:00-CME-001
2: C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2025-12-04T07:00Z.
Estimated speed: ~651 km/s.
Estimated opening half-angle: 35 deg.
Direction (lon./lat.): -41/-36 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2025-12-04T07:00:00-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 CMEs may have a glancing blow at NASA missions near Earth. Simulations indicate that the flank of the CMEs will reach NASA missions near Earth at about 2025-12-08T04:00Z (plus minus 7 hours). The roughly estimated expected range of the maximum Kp index is 2-4 (below minor).
Links to the movies of the modeled event (includes CMEs: 2025-12-04T03:24:00-CME-001, 2025-12-04T07:00:00-CME-001):
This CME event (2025-12-04T03:24:00-CME-001) is associated with M6.0 flare from AR 14300 (N10E58) with ID 2025-12-04T02:36:00-FLR-001 which peaked at 2025-12-04T02:50Z (see notifications 20251204-AL-001, 20251204-AL-002).
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 - M6.0 Flare
##
## Message Issue Date: 2025-12-04T03:14:40Z
## Message ID: 20251204-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:
Significant flare detected by GOES.
Flare start time: 2025-12-04T02:36Z.
Flare peak time: 2025-12-04T02:50Z.
Flare intensity: M6.0 class.
Source region: N10E58 (Active Region 14300) (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: Auto-generated Space Weather Notification - Flare intensity has crossed the threshold of M5.0
##
## Message Issue Date: 2025-12-04T02:54:29Z
## Message ID: 20251204-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:
Significant flare detected by GOES. Flare intensity has crossed the threshold of M5.0.
Flare M5.0 crossing time: 2025-12-04T02:48Z.
Increased energetic proton fluxes possible. Updates on this event will be provided when available.
