Solar-Terrestrial Data

Current Space Weather Conditions

Last Update

Data last updated: 2025-12-08 23:36:58

Next update in: 30:00 minutes

General Information

Parameter Value
Last Updated
Last update time
08 Dec 2025 2336 GMT
Solar Flux
Overall Solar Activity on 10.7cm. From 62.5 to 300, higher better
186
Sunspot Number
Derived from num of sunspots + groups. From 0 to 250, higher better
146
A-Index
Average Geomagnetic Activity
8
K-Index
Geomagnetic Field Disturbance. From 0 to 10, lower better
1
Aurora Latitude
Estimated equatorward auroral oval latitude (both hemispheres)
65.6 °
X-Ray
Intensity of X-Rays in Ionosphere. A, B, C, M, X Indicates Magnitude
C4.9
Geomagnetic Field
Overall activity of Earth's magnetic field. Based on K-Index
VR QUIET
Signal Noise
Noise Contributed by Solar Activity
S0-S1
MUF
Maximum Usable Frequency for Sky-Wave Propagation
NoRpt
Solar Wind
Speed of Solar Wind in KM/s. Typically 0-1000, lower better
407.7
Proton Flux
Density of Charged Protons in Solar Wind. Impacts E-Layer
185
Electron Flux
Density of Charged Electrons in Solar Wind. Impacts E-Layer
N/A
F2 Critical Frequency
Highest Frequency that reflects back from F2 Layer
N/A

HF Band Conditions

Band Day Night Notes
80m-40m
3.5 - 7.3 MHz
Poor Good Popular bands for local and regional communication
30m-20m
10.1 - 14.35 MHz
Good Good Excellent for long-distance communication during daylight
17m-15m
18.068 - 21.45 MHz
Good Good Good for worldwide communication during daylight
12m-10m
24.89 - 29.7 MHz
Good Poor Best during high solar activity, excellent for worldwide communication

Calculated VHF Conditions

Phenomenon Location Condition
vhf-aurora northern_hemi Band Closed
E-Skip europe Band Closed
E-Skip north_america Band Closed
E-Skip europe_6m Band Closed
E-Skip europe_4m Band Closed

Solar Activity History

Geomagnetic Activity History