Ειδοποιήσεις από το σύστημα έγκαιρης προειδοποίησης DONKI της NASA (διαστημικός καιρός, Ήλιος)
NASA DONKI Notifications
NASA DONKI Notifications
Message Type: Report
Message ID: 20260819-7D-001
Issue Time: 2026-08-19T20:12Z
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information (CCMC DONKI)
## Message Type: Weekly Space Weather Summary Report for August 12, 2026 - August 18, 2026
##
## Message Issue Date: 2026-08-19T20:12:31Z
## Report Coverage Begin Date: 2026-08-12T00:00Z
## Report Coverage End Date: 2026-08-18T23:59Z
## Message ID: 20260819-7D-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 minor levels during this reporting period. There were 6 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)
-----------------------------------------------------------------------------
2026-08-14T05:09Z NASA missions near Earth at 2026-08-17T00:00Z (minor impact), Kp index 3-5 (below minor to minor)
(see notification 20260814-AL-001).
The arrival of this CME was likely detected at L1 around 2026-08-17T11:04Z.
It was also estimated that the following CMEs were predicted to impact the listed locations:
CME Starting time | Predicted Impacts (plus minus 7 hours)
-----------------------------------------------------------------------------
2026-08-14T05:09Z Parker Solar Probe at 2026-08-15T19:40Z, Europa Clipper at 2026-08-17T18:00Z (glancing blow), Juice at 2026-08-17T16:00Z (glancing blow), OSIRIS-APEX at 2026-08-18T00:00Z (glancing blow), STEREO A at 2026-08-17T20:00Z (glancing blow) (see notification 20260814-AL-001).
2026-08-14T07:38Z Mars at 2026-08-19T20:00Z (glancing blow), Parker Solar Probe at 2026-08-16T02:00Z (glancing blow), Psyche at 2026-08-19T23:00Z (glancing blow), STEREO A at 2026-08-17T12:00Z (glancing blow) (see notification 20260814-AL-002).
2026-08-14T12:23Z BepiColombo at 2026-08-15T09:58Z, Psyche at 2026-08-20T16:00Z (glancing blow), Juno at 2026-08-31T06:00Z (minor impact) (see notifications 20260814-AL-003, 20260814-AL-004).
2026-08-14T18:23Z BepiColombo at 2026-08-15T13:26Z, Mars at 2026-08-19T11:46Z, Psyche at 2026-08-19T09:55Z, STEREO A at 2026-08-18T12:00Z (glancing blow), Juno at 2026-09-01T12:00Z (glancing blow) (see notification 20260814-AL-005).
2026-08-17T18:45Z STEREO A at 2026-08-20T17:06Z, Mars at 2026-08-22T19:00Z (glancing blow), Psyche at 2026-08-23T02:00Z (glancing blow) (see notification 20260818-AL-001).
Geomagnetic activity was at minor levels with Kp index (a measure of geomagnetic activity, ranging 0-9) <= 5.33 for the reporting period. The highest value of Kp = 5.33 occurred during the synoptic period of 2026-08-18T18:00Z to 2026-08-18T21:00Z. This enhancement in geomagnetic activity was associated with the arrival of a coronal hole high speed stream detected at L1 by SOLAR-1 on 2026-08-18. An earlier period of minor geomagnetic activity with Kp index = 5.00 occurred during the synoptic period of 2026-08-18T03:00Z to 2026-08-18T06:00Z, associated with the interplanetary shock detected at L1 by SOLAR-1 at 2026-08-17T11:04Z which was likely associated with the arrival of the S-Type CME first seen in STEREO A COR2 at 2026-08-14T05:09Z.
The > 2.0 MeV energetic electron flux detected at GOES remained below the threshold level of 1000 pfu for the entire reporting period.
The energetic proton flux of >10 MeV protons detected at GOES and the flux of one or more of the >15.8 MeV proton channels at SOHO were at near-background levels for the entire reporting period. The 13-100 MeV protons at STEREO A were at background levels for the entire reporting period.
Space Weather Impact:
Space weather impacts on NASA spacecraft are expected to have been low this reporting period.
##Events:
Flares (M-class and above)
Date Start Stop Peak Class Location
None Observed
CMEs (>500 km/s):
Earth directed:
NONE
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)
2026-08-14T07:38Z ~636 C 54/-24 29 STEREO A, GOES
2026-08-14T12:23Z ~653 C 175/8 44 STEREO A, SOHO, GOES
2026-08-14T18:23Z ~607 C 119/-2 40 STEREO A, GOES
2026-08-14T22:24Z ~530 C -163/36 35 SOHO, STEREO A
2026-08-15T03:09Z ~511 C -168/18 28 STEREO A, SOHO, GOES
2026-08-17T18:45Z ~605 C 65/17 15 GOES
## Space Weather Outlook:
## Outlook Coverage Begin Date: 2026-08-19T00:00Z
## Outlook Coverage End Date: 2026-08-25T23:59Z
Solar activity is expected to be at low and moderate levels during the outlook period. There are currently four numbered Active Regions on the Earth-facing disk. Active Regions 14506 (N12W82), 14507 (N04W65), and 14510 (N12W90) produced C-class flaring activity in the reporting period and may continue to produce similar levels of flaring activity during the outlook period. An unnumbered region located at approximately N05E85 produced an M1.0 class flare peaking at 2026-08-19T18:51Z during the outlook period and may continue to produce similar levels of flaring activity during the reporting period.
Geomagnetic activity is expected to be at low to moderate levels during the outlook period. A coronal hole centered around N28W25 (as seen in available imagery from SDO/AIA 193) may reach geoeffective longitudes on or around 2026-08-19.
## 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: 2026-08-19T18:25:15Z
## Message ID: 20260819-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: C-type CME detected by GOES / SOHO.
Start time of the event: 2026-08-19T06:30Z.
Estimated speed: ~505 km/s.
Estimated opening half-angle: 24 deg.
Direction (lon./lat.): 86/30 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-19T06:30:00-CME-001
2: S-type CME detected by GOES / SOHO.
Start time of the event: 2026-08-19T08:45Z.
Estimated speed: ~455 km/s.
Estimated opening half-angle: 26 deg.
Direction (lon./lat.): 87/34 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-19T08:45:00-CME-001
3: C-type CME detected by GOES / SOHO.
Start time of the event: 2026-08-19T11:30Z.
Estimated speed: ~517 km/s.
Estimated opening half-angle: 19 deg.
Direction (lon./lat.): 87/33 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-19T11:30:00-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 CMEs may impact Mars (glancing blow), Psyche (glancing blow), and STEREO A (glancing blow). The flank of the CMEs may reach Mars at 2026-08-24T08:00Z, Psyche at 2026-08-24T18:00Z, and STEREO A at 2026-08-22T16:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CMEs: 2026-08-19T06:30:00-CME-001, 2026-08-19T08:45:00-CME-001, and 2026-08-19T11:30:00-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)
##
## Message Issue Date: 2026-08-19T17:37:39Z
## Message ID: 20260819-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 / SOHO.
Start time of the event: 2026-08-19T01:36Z.
Estimated speed: ~502 km/s.
Estimated opening half-angle: 22 deg.
Direction (lon./lat.): 85/16 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-19T01:36:00-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 may reach Mars at 2026-08-24T04:00Z, Psyche at 2026-08-24T16:00Z, and STEREO A at 2026-08-21T16:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-19T01:36:00-CME-001):
Message Body: ## Community Coordinated Modeling Center Database Of Notifications, Knowledge, Information ( CCMC DONKI )
## Message Type: Space Weather Notification - CME (STEREO A, Mars, Psyche)
##
## Message Issue Date: 2026-08-18T01:23:30Z
## Message ID: 20260818-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.
Start time of the event: 2026-08-17T18:45Z.
Estimated speed: ~605 km/s.
Estimated opening half-angle: 15 deg.
Direction (lon./lat.): 65/17 in Heliocentric Earth Equatorial coordinates.
Activity ID: 2026-08-17T18:45:00-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, Mars (glancing blow), and Psyche (glancing blow). The leading edge of the CME may reach STEREO A at 2026-08-20T17:06Z and the flank of the CME may reach Mars at 2026-08-22T19:00Z and Psyche at 2026-08-23T02:00Z (plus minus 7 hours).
Links to the movies of the modeled event (includes CME: 2026-08-17T18:45:00-CME-001):
This CME event (2026-08-17T18:45:00-CME-001) is associated with a C2.0 flare from Active Region 14510 (N12W65) with ID 2026-08-17T16:18:00-FLR-001 which peaked at 2026-08-17T16:53Z.
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
