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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, February 23, 2020 11:35:09

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NOAA Scales mini

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Space Weather Conditions
24-Hour Observed Maximums
R
no data
S
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G
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Latest Observed
R
no data
S
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G
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R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
no data
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no data
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Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

Total Electron Content - WMO Product Portal

US Total Electron Content

US-TEC thumbnail
Product Description:
2-D product showing the recent conditions of ionospheric
Total Electron Content that impact GNSS-derived position
accuracy. Vertical TEC and slant-path values of the
line-of-sight electron content to the GPS satellites
in view are given. This ionospheric product is designed
to estimate the signal delay for single and dual
frequency GNSS applications.


Target Users:
Product users include industries relying on high-accuracy GNSS positioning, such as
airlines, agriculture, surveying, construction, and drilling.
US Total Electron Content
Cadence: 15 min
Data Source: Ground-based GPS receivers