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SPACE ENVIRONMENT FORECAST
MON ,  Aug 18 , 2025
TUE ,  Aug 19 , 2025
WED ,  Aug 20 , 2025
DAILY REPORTS
 
Space Environment Summary
During the past 24 hours, solar activity was low. 4 active sunspot regions were on the visble disk without M-class and above flares produced. The solar wind speed slowly decreased to about 310 km/s. The geomagnetic field was at quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit maintained at minor storm level.
Published: 2025-08-18 00:30 UTC
Forecaster: 026/029
 
Space Environment Forecast
Within the next three days, solar activity is expected to be low. The geomagnetic field is expected to be at active to minor storm levels due to effects of a coronal hole high speed wind stream on 18-20 Aug.
Published: 2025-08-18 00:30 UTC
Forecaster: 026/029
 
F10.7 Index Ap Index
The 10.7-cm solar radio flux forecast for the next 24/48/72 hours.
Geomagnetic Ap index forecast for the next 24/48/72 hours.
24HR 48HR 72HR
114 112 111
24HR 48HR 72HR
21 31 18
 
Solar X-ray Flare Geomagnetic Storm
Probabilities for M and X class solar flares for the next 24/48/72 hours. Probabilities for minor and major disturbances in Geomagnetic field for the next 24/48/72 hours.
CLASS 24HR 48HR 72HR
M 10% 10% 10%
X 1% 1% 1%
CLASS 24HR 48HR 72HR
Minor 50% 60% 30%
Major 20% 30% 1%
 
Solar Proton Event Relativisitic Electron Enhancement
Probabilities for solar proton event for the next 24/48/72 hours.
Probabilities for GEO relativistic electrons enhancement event for the next 24/48/72 hours.
24HR 48HR 72HR
1% 1% 1%
24HR 48HR 72HR
40% 30% 20%
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24-hr Max:C3.7
Peak Time:2025 Aug 17 04:59 UTC
 
Updated:2025 Aug 18 04:39 UTC
>>more data<<
Current 5-min:1.771e-1 /cm2.sr.s
24-hr Max:2.662e-1 /cm2.sr.s
 
Updated:2025 Aug 18 04:30 UTC
>>more data<<
Speed:302.2 km/sec
Density:5.1 protons/cm3
 
Updated:2025 Aug 18 04:39 UTC
>>more data<<
Current:Kp=0
24-hr Max:Kp=2
 
Updated:2025 Aug 18 03:00 UTC
>>more data<<
Current 5-min:3.389e+2 /cm2.sr.s
Integral Flux:2.338e+8 /cm2.sr.day
 
Updated:2025 Aug 18 04:30 UTC
>>more data<<
10.7cm Flux:117 sfu
 
Update:2025 Aug 17 UTC
>>more data<<
SSN:53
 
Update:2025 Aug 17 UTC
>>more data<<