Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: CME
Message ID: 20260618-AL-005
Issue Time: 2026-06-18T18:44Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CMEs (Mars, Psyche, STEREO A)
##
## Message Issue Date: 2026-06-18T18:44:00Z
## Message ID: 20260618-AL-005
##
## 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: 2026-06-18T02:36Z.
Estimated speed: ~688 km/s.
Estimated opening half-angle: 21 deg.
Direction (lon./lat.): 100/6 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-18T02:36:00-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 (glancing blow), Psyche (glancing blow), and STEREO A (glancing blow). The flank of the CME will reach Mars at 2026-06-21T20:00Z, Psyche at 2026-06-21T12:00Z, and STEREO A at 2026-06-21T00:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-18T02:36:00-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: 2026-06-18T18:33:54Z
## Message ID: 20260618-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.
Start time of the event: 2026-06-18T13:23Z.
Estimated speed: ~592 km/s.
Estimated opening half-angle: 15 deg.
Direction (lon./lat.): 140/-18 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-18T13:23:00-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 (glancing blow) and Psyche (glancing blow). The flank of the CME will reach Mars at 2026-06-22T08:00Z and Psyche at 2026-06-22T12:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-18T13:23:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (STEREO A)
##
## Message Issue Date: 2026-06-18T16:44:19Z
## Message ID: 20260618-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: 2026-06-18T06:24Z.
Estimated speed: ~859 km/s.
Estimated opening half-angle: 19 deg.
Direction (lon./lat.): 80/2 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-18T06:24:00-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 CME may impact STEREO A (minor impact). The leading edge of the CME will reach STEREO A at 2026-06-20T15:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-18T06:24:00-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: 2026-06-18T15:52:43Z
## Message ID: 20260618-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 GOES / SOHO.
Start time of the event: 2026-06-18T00:00Z.
Estimated speed: ~517 km/s.
Estimated opening half-angle: 13 deg.
Direction (lon./lat.): 96/10 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-18T00:00:00-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 Mars (glancing blow) and Psyche (glancing blow). The flank of the CME will reach Mars at 2026-06-21T20:00Z and Psyche at 2026-06-21T18:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-06-18T00:00:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CMEs (Mars, Psyche, STEREO A)
##
## Message Issue Date: 2026-06-18T01:46:17Z
## Message ID: 20260618-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 GOES / SOHO.
Start time of the event: 2026-06-17T18:48Z.
Estimated speed: ~675 km/s.
Estimated opening half-angle: 18 deg.
Direction (lon./lat.): 93/8 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-17T18:48:00-CME-001
2: C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-06-17T17:48Z.
Estimated speed: ~500 km/s.
Estimated opening half-angle: 14 deg.
Direction (lon./lat.): 96/6 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-17T17:48:00-CME-001
3: C-type CME detected by GOES / SOHO.
Start time of the event: 2026-06-17T20:24Z.
Estimated speed: ~509 km/s.
Estimated opening half-angle: 18 deg.
Direction (lon./lat.): 98/4 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-17T20:24:00-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 Mars (glancing blow), Psyche (glancing blow), and STEREO A (glancing blow). The combined flank of the CMEs may reach Mars at 2026-06-21T08:00Z, Psyche at 2026-06-21T06:00Z, and STEREO A at 2026-06-20T14:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CMEs: 2026-06-17T18:48:00-CME-001, 2026-06-17T17:48:00-CME-001, 2026-06-17T20:24:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information (CCMC DONKI)
## Message Type: Weekly Space Weather Summary Report for June 10, 2026 - June 16, 2026
##
## Message Issue Date: 2026-06-17T20:06:23Z
## Report Coverage Begin Date: 2026-06-10T00:00Z
## Report Coverage End Date: 2026-06-16T23:59Z
## Message ID: 20260617-7D-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 activity was at low levels during this reporting period with 11 C-type CMEs (see details below).
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 was estimated that the following CMEs were predicted to impact missions near Earth:
CME Starting time | Predicted Impacts (plus minus 7 hours)
-----------------------------------------------------------------------------
2026-06-11T00:36Z NASA missions near Earth at 2026-06-13T03:06Z, Kp index 5-7 (minor to strong)
(see notification 20260611-AL-001).
The arrival of this CME was likely detected at L1 around 2026-06-13T09:51Z.
2026-06-12T16:36Z NASA missions near Earth at 2026-06-14T17:33Z, Kp index 5-7 (minor to strong)
(see notifications 20260612-AL-001, 20260612-AL-002).
Ensemble: https://iswa.gsfc.nasa.gov/ENSEMBLE/2026-06-12_ncmes1_sims36_M2M-SWAO086/Detailed_results_20260612_193800_ncmes1_sims36_M2M-SWAO086.txt
The arrival of this CME was not detected at L1.
It was also estimated that the following CMEs were predicted to impact the listed locations:
CME Starting time | Predicted Impacts (plus minus 7 hours)
-----------------------------------------------------------------------------
2026-06-10T18:08Z Mars at 2026-06-14T21:00Z (glancing blow), Psyche at 2026-06-14T18:00Z (glancing blow), and Solar Orbiter at 2026-06-13T10:00Z (glancing blow) (see notification 20260610-AL-002).
2026-06-10T18:12Z Mars at 2026-06-14T21:00Z (glancing blow), Psyche at 2026-06-14T18:00Z (glancing blow), and Solar Orbiter at 2026-06-13T10:00Z (glancing blow) (see notification 20260610-AL-002).
2026-06-11T00:36Z BepiColombo at 2026-06-12T00:01Z, Europa Clipper at 2026-06-14T11:10Z, OSIRIS-APEX at 2026-06-13T19:35Z, Lucy at 2026-06-27T12:00Z (glancing blow) (see notification 20260611-AL-001).
2026-06-12T16:36Z BepiColombo at 2026-06-13T16:14Z, Europa Clipper at 2026-06-16T05:10Z, OSIRIS-APEX at 2026-06-15T09:18Z, Juice at 2026-06-16T12:00Z (glancing blow) (see notifications 20260612-AL-001, 20260612-AL-002).
2026-06-12T19:24Z BepiColombo at 2026-06-14T04:46Z, Lucy at 2026-06-30T17:00Z (minor impact) (see notification 20260612-AL-003).
2026-06-13T13:26Z STEREO A at 2026-06-16T00:09Z, Juice at 2026-06-17T12:00Z (glancing blow), Mars at 2026-06-17T20:00Z (glancing blow), Psyche at 2026-06-17T18:00Z (glancing blow) (see notification 20260613-AL-003).
Geomagnetic activity was at minor levels with Kp index (a measure of geomagnetic activity, ranging 0-9) <= 5.00 for the reporting period. The highest value of Kp = 5.00 occurred during the synoptic period 2026-06-11T18:00Z to 2026-06-11T21:00Z. This enhancement in geomagnetic activity was associated with the interplanetary shock detected at L1 by ACE and DSCOVR at 2026-06-11T15:16Z which was associated with the arrival of the coronal hole high speed stream detected by ACE and DSCOVR at L1 on 2026-06-11. Simulations indicated that the magnetopause separating magnetospheric and solar wind plasma was close to geosynchronous orbit starting at 2026-06-11T21:41Z (see notification 20260611-AL-003).
The > 2.0 MeV energetic electron flux detected at GOES was elevated above the threshold level of 1000 pfu at the beginning of the reporting period due to a threshold crossing from a previous reporting period starting at 2026-06-06T16:15Z (see notifications 20260606-AL-002, 20260606-AL-003, 20260608-AL-001, 20260610-AL-001). This elevation of energetic electron flux levels was likely associated with the arrivals of the O-type CMEs first seen in STEREO A COR2 at 2026-06-03T01:53Z and SOHO LASCO C2 at 2026-06-03T11:48Z in the previous reporting period. The fluxes returned to background levels on 2026-06-11.
The >2.0 MeV energetic electron flux levels crossed the threshold of 1000 pfu again at 2026-06-13T12:45Z (see notifications 20260613-AL-001, 20260613-AL-002, 20260615-AL-001). This subsequent elevation of energetic electron flux levels was likely associated with the arrival of a coronal hole high speed stream detected at L1 by ACE on 2026-06-11. The energetic electron flux levels remained elevated through the end of the reporting period.
The energetic proton flux of >10 MeV protons detected at GOES and the 13-100 MeV protons at STEREO A were all at background levels for the entire reporting period. The flux of one or more of the >15.8 MeV proton channels at SOHO was elevated but below threshold at the start of the reporting period due to slight enhancement from the previous reporting period associated with the M1.8 flare peaking at 2026-06-06T14:01Z from Active Region 14461 and the associated O-type CME first seen in SOHO LASCO C2 at 2026-06-06T14:11Z. These fluxes subsided to background levels by the end of 2026-06-15.
Space Weather Impact:
Space weather impacts on NASA spacecraft are expected to have been moderate this reporting period due to the elevated energetic electron flux in the Earth's outer radiation belt described above.
##Events:
Flares (M-class and above)
Date Start Stop Peak Class Location
None Observed
CMEs (>500 km/s):
Earth directed:
Starting time Speed (km/s) Type Direction (LON/LAT in HEEQ) Half-Angle width (degrees) Detecting spacecraft (real-time)
2026-06-11T00:36Z ~885 C -32/21 41 SOHO, STEREO A, GOES
2026-06-12T16:36Z ~977 C -15/2 38 SOHO, STEREO A, GOES
Non-Earth directed (POS = Plane Of Sky):
Starting time Speed (km/s) Type Direction (LON/LAT in HEEQ) Half-Angle width (degrees) Detecting spacecraft (real-time)
2026-06-10T18:08Z ~619 C 153/18 31 SOHO, STEREO A, GOES
2026-06-10T18:12Z ~512 C 168/-29 22 SOHO, STEREO A, GOES
2026-06-11T20:15Z ~561 C NONE(POS)/-65 22 GOES
2026-06-12T18:24Z ~816 C -122/-67 10 SOHO, STEREO A, GOES
2026-06-12T19:24Z ~518 C -80/0 37 SOHO, STEREO A, GOES
2026-06-12T23:00Z ~533 C NONE(POS)/-5 19 SOHO, GOES
2026-06-13T13:26Z ~649 C 67/-25 35 SOHO, STEREO A, GOES
2026-06-15T07:24Z ~553 C 93/-10 10 SOHO, STEREO A, GOES
2026-06-16T16:00Z ~516 C 80/-34 15 SOHO, STEREO A, GOES
## Space Weather Outlook:
## Outlook Coverage Begin Date: 2026-06-17T00:00Z
## Outlook Coverage End Date: 2026-06-23T23:59Z
Solar activity is expected to vary between low and moderate levels during the outlook period. There are currently three numbered Active Regions on the Earth-facing disk.
Geomagnetic activity is expected to vary between low and moderate levels during the outlook period. Two coronal holes centered around S12W55 and N13W20 (as seen in available imagery from SDO/AIA 193) may reach geoeffective longitudes on or around 2026-06-17 and 2026-06-19, respectively. The enhanced energetic electron flux levels at GOES observed during the reporting period have remained elevated and are anticipated to remain elevated through at least the first half of the outlook period (see notification 20260617-AL-001).
## 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 - CMEs (Mars, Psyche, STEREO A)
##
## Message Issue Date: 2026-06-17T18:52:44Z
## Message ID: 20260617-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:
Multiple CMEs have been detected as follows:
1: S-type CME detected by STEREO A.
Start time of the event: 2026-06-17T12:30Z.
Estimated speed: ~309 km/s.
Estimated opening half-angle: 15 deg.
Direction (lon./lat.): 90/3 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-17T12:30:00-CME-001
2: C-type CME detected by STEREO A / GOES / SOHO.
Start time of the event: 2026-06-17T15:09Z.
Estimated speed: ~568 km/s.
Estimated opening half-angle: 19 deg.
Direction (lon./lat.): 106/7 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-06-17T15:09:00-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 the CMEs may impact Mars (glancing blow), Psyche (glancing blow), and STEREO A (glancing blow). The flank of the CMEs may reach Mars at 2026-06-21T04:00Z, Psyche at 2026-06-21T00:00Z, and STEREO A at 2026-06-20T16:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CMEs: 2026-06-17T12:30:00-CME-001, 2026-06-17T15:09:00-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: 2026-06-17T13:08:05Z
## Message ID: 20260617-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 2026-06-16T21:25Z.
The elevated energetic electron flux levels observed since 2026-06-13T12:45Z are caused by the coronal hole high speed stream which arrived on 2026-06-11, reaching a maximum speed of approximately 650 km/s. The solar wind speed observed at L1 is currently around 470 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: 2026-06-13T12:45:00-RBE-001.
## Notes:
This coronal hole high speed stream is also associated with the modeled magnetopause crossing with ID 2026-06-11T21:41:00-MPC-001 (see notification 20260611-AL-003).
