Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: SEP
Message ID: 20260526-AL-003
Issue Time: 2026-05-26T00:26Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (GOES)
##
## Message Issue Date: 2026-05-26T00:26:20Z
## Message ID: 20260526-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:
Solar energetic particle event detected by GOES. The flux of > 10 MeV protons exceeds 10 pfu starting at 2026-05-26T00:15Z.
NASA spacecraft at MEO, GEO and other high-altitude orbits and high-inclination LEO can be impacted.
Activity ID: 2026-05-26T00:15:00-SEP-001.
## Notes:
This SEP event (2026-05-26T00:15:00-SEP-001) is associated with O-Type CME with ID 2026-05-25T22:12:00-CME-001 (see notification 20260526-AL-002).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Mars, Psyche, Parker Solar Probe, Solar Orbiter)
##
## Message Issue Date: 2026-05-26T00:24:47Z
## Message ID: 20260526-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:
O-type CME detected by SOHO.
Start time of the event: 2026-05-25T22:12Z.
Estimated speed: ~1980 km/s.
Estimated opening half-angle: 31 deg.
Direction (lon./lat.): 145/28 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-25T22:12:00-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, Parker Solar Probe (glancing blow), and Solar Orbiter (glancing blow). The leading edge of the CME will reach Mars at 2026-05-27T22:42Z, Psyche at 2026-05-27T21:38Z, and the flank of the CME will reach Parker Solar Probe at 2026-05-26T16:00Z, and Solar Orbiter at 2026-05-28T14:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-05-25T22:12:00-CME-001):
This CME event (2026-05-25T22:12:00-CME-001) is associated with SEP at MODEL with ID 2026-05-25T23:31:00-SEP-001, SEP at MODEL with ID 2026-05-25T23:31:00-SEP-002 (see notification 20260525-AL-001), SEP at SOHO with ID 2026-05-25T23:34:00-SEP-001, SEP at MODEL with ID 2026-05-25T23:35:00-SEP-001, SEP at MODEL with ID 2026-05-25T23:35:00-SEP-003 (see notification 20260525-AL-002), and SEP at SOHO with ID 2026-05-25T23:39:00-SEP-001 (see notification 20260525-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: Auto-generated Space Weather Notification - SEP
##
## Message Issue Date: 2026-05-26T00:23:51Z
## Message ID: 20260526-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:
Solar energetic particle event detected by GOES. The flux of > 10 MeV protons exceeds 10 pfu starting at 2026-05-26T00:15Z.
NASA spacecraft at MEO, GEO and other high-altitude orbits and high-inclination LEO can be impacted.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP (SOHO)
##
## Message Issue Date: 2026-05-25T23:57:55Z
## Message ID: 20260525-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:
Solar energetic particle event detected by SOHO. The flux of one or more of the >15.8 MeV protons channels exceeds 10^(-1) pfu/MeV starting at 2026-05-25T23:34Z.
NASA spacecraft at L1 and near-Earth orbits can be impacted.
Activity ID: 2026-05-25T23:39:00-SEP-001.
## Notes:
This SEP event (2026-05-25T23:39:00-SEP-001) is associated with O-Type CME with ID 2026-05-25T22:12:00-CME-001.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP Prediction
##
## Message Issue Date: 2026-05-25T23:35:15Z
## Message ID: 20260525-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:
Solar energetic particle event forecasted near L1 orbit by the HESPERIA RELeASE model
starting at 2026-05-25T23:35Z. The flux of one or more of the >15.8 MeV protons
channels may exceed 10^(-1) pfu/MeV within the next few hours.
NASA spacecraft at the orbits NASA spacecraft at the L1 and near-Earth orbits can be
impacted.
Activity ID: 2026-05-25T23:35:00-SEP-003.
## Notes:
This SEP event (2026-05-25T23:35:00-SEP-003) is associated with CME with ID 2026-05-25T22:12:00-CME-001.
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - SEP Prediction
##
## Message Issue Date: 2026-05-25T23:34:07Z
## Message ID: 20260525-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:
Solar energetic particle event forecasted near L1 orbit by the HESPERIA RELeASE model
starting at 2026-05-25T23:31Z. The flux of one or more of the >15.8 MeV protons
channels may exceed 10^(-1) pfu/MeV within the next few hours.
NASA spacecraft at the orbits NASA spacecraft at the L1 and near-Earth orbits can be
impacted.
Activity ID: 2026-05-25T23:31:00-SEP-002.
## Notes:
This SEP event (2026-05-25T23:31:00-SEP-002) is associated with CME with ID 2026-05-25T22:12:00-CME-001.
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: 2026-05-24T14:24:00Z
## Message ID: 20260524-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:
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 2026-05-22T10:25Z.
The elevated energetic electron flux levels observed since 2026-05-24T06:40Z (see notifications 20260516-AL-003, 20260516-AL-004, 20260518-AL-001, 20260520-AL-001, and 20260522-AL-002) are caused by the arrival of a coronal hole high speed stream which started on 2026-05-15, reaching maximum sustained speeds of approximately 740 km/s. The solar wind speed observed at L1 is currently around 330 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: 2026-05-16T15:20:00-RBE-001.
## Notes:
This coronal hole high speed stream is also associated with interplanetary shock with ID 2026-05-15T07:14:00-IPS-001 (see notification 20260515-AL-001) and geomagnetic storm with ID 2026-05-15T21:00:00-GST-001 (see notifications 20260516-AL-001, 20260516-AL-002).
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Parker Solar Probe, Mars, STEREO A)
##
## Message Issue Date: 2026-05-24T13:48:41Z
## Message ID: 20260524-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: 2026-05-24T09:12Z.
Estimated speed: ~643 km/s.
Estimated opening half-angle: 31 deg.
Direction (lon./lat.): 102/31 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-24T09:12:00-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 Parker Solar Probe, Mars (glancing blow), and STEREO A (glancing blow). The leading edge of the CME will reach Parker Solar Probe at 2026-05-25T11:37Z and the flank will reach Mars at 2026-05-28T00:00Z and STEREO A at 2026-05-27T20:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-05-24T09:12:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (Parker Solar Probe, Mars, Psyche)
##
## Message Issue Date: 2026-05-24T01:47:15Z
## Message ID: 20260524-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: 2026-05-23T20:30Z.
Estimated speed: ~580 km/s.
Estimated opening half-angle: 28 deg.
Direction (lon./lat.): 110/26 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-23T20:30:00-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 Parker Solar Probe, Mars (glancing blow), and Psyche (glancing blow). The leading edge of the CME will reach Parker Solar Probe at 2026-05-25T00:45Z and its flank will reach Mars at 2026-05-27T08:00Z and Psyche at 2026-05-27T07:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-05-23T20:30:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CMEs (Parker Solar Probe, STEREO A, Juice)
##
## Message Issue Date: 2026-05-23T19:35:24Z
## Message ID: 20260523-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: 2026-05-23T16:00Z.
Estimated speed: ~680 km/s.
Estimated opening half-angle: 32 deg.
Direction (lon./lat.): 83/29 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-05-23T16:00:00-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, STEREO A, and Juice (glancing blow). The flank of the CME will reach Parker Solar Probe at 2026-05-24T19:22Z and another flank will reach STEREO A at 2026-05-26T13:26Z and Juice at 2026-05-28T20:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CMEs: 2026-05-23T16:00:00-CME-001 and 2026-05-23T06:48:00-CME-001):
