Sun data and propagation
Current HF propagation
TODAYS SUN DATA AND HF PROPAGATION
Todays sun data | 
Latest EIT-304 image // Sun images from NASA |
Flux index: | 151 |
Spot number: | 119 |
X-Ray index: | 75.2 |
A index: | 11 |
Kp index: | 1.00 |
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Conditions 00-10MHz: | Good |
Conditions 10-20MHz: | Excellent |
Conditions 20-30MHz: | Excellent |
We are working on the algorithm, conditions shown here may not correlate with real conditions. The best check is always to power up your HF rig and listen on every band to be sure!
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GRAPHICAL SUN DATA HISTORY


PROPAGATION BASED ON WSPRNET* (ALPHA)
Probability of QSO on 20m between AS and OC is 20% |  |
Probability of QSO on 30m between EU and OC is 27% |  |
* Propagation probability based on data from WSPRnet (Weak Signal Propagation Reporter Network) Spot DatabasePROPAGATION BASED ON DX-CLUSTER
Conditions at 00-10MHz (11%) based on DX-Cluster | Spots de | dx AF | dx AS | dx EU | dx NA | dx OC | dx SA | AF | 2% | 0% | 0% | 0% | 0% | 0% | AS | 2% | 1% | 1% | 0% | 0% | 0% | EU | 2% | 5% | 70% | 0% | 0% | 0% | NA | 0% | 1% | 0% | 11% | 0% | 0% | OC | 0% | 0% | 0% | 0% | 0% | 0% | SA | 0% | 0% | 2% | 0% | 0% | 3% |
| Conditions at 10-20MHz (36%) based on DX-Cluster | Spots de | dx AF | dx AS | dx EU | dx NA | dx OC | dx SA | AF | 1% | 0% | 1% | 0% | 0% | 0% | AS | 1% | 2% | 6% | 1% | 0% | 1% | EU | 4% | 9% | 29% | 10% | 2% | 4% | NA | 1% | 4% | 10% | 16% | 1% | 1% | OC | 0% | 0% | 0% | 0% | 0% | 1% | SA | 0% | 0% | 2% | 0% | 1% | 1% |
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Conditions at 20-30MHz (33%) based on DX-Cluster | Spots de | dx AF | dx AS | dx EU | dx NA | dx OC | dx SA | AF | 2% | 0% | 7% | 2% | 0% | 1% | AS | 1% | 1% | 5% | 1% | 0% | 1% | EU | 3% | 4% | 11% | 10% | 1% | 9% | NA | 2% | 5% | 10% | 5% | 1% | 2% | OC | 0% | 0% | 0% | 1% | 0% | 0% | SA | 0% | 1% | 18% | 5% | 0% | 1% |
| Conditions at 50-54MHz (23%) based on DX-Cluster | Spots de | dx AF | dx AS | dx EU | dx NA | dx OC | dx SA | AF | 2% | 0% | 1% | 0% | 0% | 0% | AS | 1% | 0% | 1% | 1% | 0% | 0% | EU | 14% | 1% | 43% | 3% | 0% | 24% | NA | 1% | 0% | 1% | 2% | 1% | 1% | OC | 0% | 0% | 0% | 0% | 0% | 0% | SA | 0% | 0% | 7% | 0% | 0% | 2% |
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HISTORICAL PROPAGATION DATA
Last 30 days of HF propagation
Date and Time | Flux idx. | Spot num. | X-Ray idx. | X-Ray num | A-Index | K-Index | 00-10MHz | 10-20MHz | 20-30MHz |
2023-05-29 12:00:00 | 151 | 119 | 75.2 | 0 | 11 | 1.00 | Good | Excellent | Excellent |
2023-05-29 00:00:00 | 157 | 125 | 75.2 | 0 | 11 | 1.67 | Normal | Excellent | Excellent |
2023-05-28 12:00:00 | 157 | 125 | 75.2 | 0 | 4 | 2.33 | Normal | Excellent | Excellent |
2023-05-28 00:00:00 | 149 | 127 | 75.2 | 0 | 4 | 2.00 | Normal | Excellent | Excellent |
2023-05-27 12:00:00 | 149 | 127 | 75.2 | 0 | 6 | 1.00 | Good | Excellent | Excellent |
2023-05-27 00:00:00 | 152 | 121 | 75.2 | 0 | 6 | 1.67 | Normal | Excellent | Excellent |
2023-05-26 12:00:00 | 152 | 121 | 75.2 | 0 | 11 | 1.00 | Good | Excellent | Excellent |
2023-05-26 00:00:00 | 164 | 153 | 75.2 | 0 | 11 | 2.00 | Normal | Excellent | Excellent |
2023-05-25 12:00:00 | 164 | 153 | 75.2 | 0 | 12 | 3.00 | Normal | Excellent | Excellent |
2023-05-25 00:00:00 | 155 | 130 | 75.2 | 0 | 15 | 3.00 | Fair | Good | Good |
2023-05-24 12:00:00 | 155 | 130 | 75.2 | 0 | 12 | 2.33 | Normal | Excellent | Excellent |
2023-05-24 00:00:00 | 162 | 97 | 75.2 | 0 | 12 | 3.67 | Normal | Excellent | Excellent |
2023-05-23 12:00:00 | 162 | 97 | 75.2 | 0 | 21 | 2.33 | Fair | Good | Good |
2023-05-23 00:00:00 | 163 | 140 | 75.2 | 0 | 21 | 4.00 | Fair | Normal | Normal |
2023-05-22 12:00:00 | 163 | 140 | 75.2 | 0 | 28 | 3.00 | Fair | Good | Good |
2023-05-22 00:00:00 | 170 | 138 | 75.2 | 0 | 28 | 6.00 | Poor | Fair | Fair |
2023-05-21 12:00:00 | 170 | 138 | 75.2 | 0 | 35 | 2.00 | Fair | Good | Good |
2023-05-21 00:00:00 | 165 | 155 | 75.2 | 0 | 35 | 3.33 | Fair | Good | Good |
2023-05-20 12:00:00 | 165 | 155 | 75.2 | 0 | 9 | 4.33 | Fair | Good | Good |
2023-05-20 00:00:00 | 151 | 121 | 75.2 | 0 | 9 | 4.33 | Fair | Good | Good |
2023-05-19 12:00:00 | 151 | 121 | 75.2 | 0 | 3 | 1.00 | Good | Excellent | Excellent |
2023-05-19 00:00:00 | 138 | 106 | 75.2 | 0 | 3 | 0.67 | Good | Excellent | Excellent |
2023-05-18 12:00:00 | 138 | 106 | 75.2 | 0 | 4 | 1.00 | Good | Excellent | Excellent |
2023-05-18 00:00:00 | 134 | 106 | 75.2 | 0 | 4 | 1.00 | Good | Excellent | Excellent |
2023-05-17 12:00:00 | 134 | 106 | 75.2 | 0 | 8 | 1.00 | Good | Excellent | Excellent |
2023-05-17 00:00:00 | 135 | 103 | 75.2 | 0 | 8 | 1.67 | Normal | Excellent | Excellent |
2023-05-16 12:00:00 | 135 | 103 | 75.2 | 0 | 6 | 1.33 | Normal | Excellent | Excellent |
2023-05-16 00:00:00 | 140 | 109 | 75.2 | 0 | 5 | 2.67 | Normal | Excellent | Excellent |
2023-05-15 12:00:00 | 140 | 109 | 75.2 | 0 | 8 | 0.33 | Good | Excellent | Excellent |
2023-05-15 00:00:00 | 144 | 120 | 75.2 | 0 | 8 | 2.33 | Normal | Excellent | Excellent |
2023-05-14 12:00:00 | | | | 0 | | | Normal | Excellent | Excellent |
2023-05-14 00:00:00 | 149 | 134 | 75.2 | 0 | 13 | 4.33 | Fair | Normal | Normal |
2023-05-13 12:00:00 | 149 | 134 | 75.2 | 0 | 19 | 1.00 | Normal | Excellent | Excellent |
2023-05-13 00:00:00 | 163 | 152 | 75.2 | 0 | 19 | 2.67 | Fair | Good | Good |
2023-05-12 12:00:00 | 163 | 152 | 75.2 | 0 | 9 | 2.33 | Normal | Excellent | Excellent |
2023-05-12 00:00:00 | 170 | 154 | 75.2 | 0 | 9 | 2.67 | Normal | Excellent | Excellent |
2023-05-11 12:00:00 | 170 | 154 | 75.2 | 0 | 26 | 1.67 | Fair | Good | Good |
2023-05-11 00:00:00 | 180 | 151 | 75.2 | 0 | 26 | 3.00 | Fair | Good | Good |
2023-05-10 12:00:00 | 180 | 151 | 75.2 | 0 | 14 | 3.67 | Fair | Good | Good |
2023-05-10 00:00:00 | 172 | 103 | 75.2 | 0 | 14 | 4.67 | Fair | Normal | Normal |
2023-05-09 12:00:00 | 172 | 103 | 75.2 | 0 | 16 | 1.67 | Fair | Good | Good |
2023-05-09 00:00:00 | 157 | 99 | 75.2 | 0 | 16 | 3.33 | Fair | Good | Good |
2023-05-08 12:00:00 | 157 | 99 | 75.2 | 0 | 9 | 1.67 | Normal | Excellent | Excellent |
2023-05-08 00:00:00 | 152 | 99 | 75.2 | 0 | 9 | 2.67 | Normal | Excellent | Excellent |
2023-05-07 12:00:00 | 152 | 99 | 75.2 | 0 | 30 | 2.00 | Fair | Good | Good |
2023-05-07 00:00:00 | 162 | 90 | 75.2 | 0 | 30 | 2.00 | Fair | Good | Good |
2023-05-06 12:00:00 | 162 | 90 | 75.2 | 0 | 4 | 3.67 | Normal | Excellent | Excellent |
2023-05-06 00:00:00 | 162 | 139 | 75.2 | 0 | 4 | 1.33 | Normal | Excellent | Excellent |
2023-05-05 12:00:00 | 162 | 139 | 75.2 | 0 | 6 | 1.00 | Good | Excellent | Excellent |
2023-05-05 00:00:00 | 156 | 143 | 75.2 | 0 | 6 | 2.00 | Normal | Excellent | Excellent |
2023-05-04 12:00:00 | 156 | 143 | 75.2 | 0 | 4 | 1.00 | Good | Excellent | Excellent |
2023-05-04 00:00:00 | 157 | 134 | 75.2 | 0 | 4 | 1.67 | Normal | Excellent | Excellent |
2023-05-03 12:00:00 | 157 | 134 | 75.2 | 0 | 9 | 1.00 | Good | Excellent | Excellent |
2023-05-03 00:00:00 | 148 | 87 | 75.2 | 0 | 9 | 1.00 | Good | Excellent | Excellent |
2023-05-02 12:00:00 | 148 | 87 | 75.2 | 0 | 10 | 3.00 | Normal | Excellent | Excellent |
2023-05-02 00:00:00 | 154 | 105 | 75.2 | 0 | 10 | 3.67 | Normal | Excellent | Excellent |
2023-05-01 12:00:00 | 154 | 105 | 75.2 | 0 | 10 | 1.67 | Normal | Excellent | Excellent |
2023-05-01 00:00:00 | 156 | 82 | 75.2 | 0 | 10 | 1.67 | Normal | Excellent | Excellent |
2023-04-30 12:00:00 | 156 | 82 | 75.2 | 0 | 20 | 3.33 | Fair | Good | Good |
2023-04-30 00:00:00 | 150 | 111 | 75.2 | 0 | 20 | 2.67 | Fair | Good | Good |