HF Propagation on QRZCQ - The database for radio hams

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

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!

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 Database

PROPAGATION 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%

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%

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