Events, Bursts

Events & Bursts in 2026

Relationship of radio spectroheliograms to other wavelengths

Archive 2023

Archive 2024

Archive 2025

Archive 2026
   

Number of solar radio bursts observed within the ISWI instrument network e-Callisto: Station SWISS-MUHEN

Burst Counts
March

Burst Counts
April

Burst Counts
May

Burst Counts
June

Burst Counts
July

Burst Counts
August

Burst Counts
September
     

October 08, 2026
   15:41 - 15:59 UTC
  The station SWISS-MUHEN recorded bursts of type 2 (AR4549):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

September 08, 2026
   12:19 - 12:23 UTC
  The station SWISS-MUHEN recorded bursts of type 5 (AR4521):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(1600)

 

NOAA
Space Weather
Prediction Center

September 06, 2026
   10:35 - 10:56 UTC
  The station SWISS-MUHEN recorded bursts of type 3, 2 (AR4524):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

September 05, 2026
   10:32 - 15:22 UTC
  The station SWISS-MUHEN recorded bursts of type 3, 2 (AR4520):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SDO
(1600)

 

SDO
(EIT304)

 
 

Radio Flux Density
Polaris. 62/63

SOHO
(sunspot)

 

SDO
(1600)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

September 03, 2026
   16:29 - 16:35 UTC
  The station SWISS-MUHEN recorded bursts of type 3 (AR4524):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

August 25, 2026
   09:59 - 10:33 UTC
  The station SWISS-MUHEN recorded bursts of type 2, 5 (AR4513):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62
 
SDO
(EIT304)

 
 
   
SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

August 15, 2026
   14:41 - 14:49 UTC
  The station SWISS-MUHEN recorded bursts of type 3 (AR4507):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

July 26, 2026
   07:31 - 15:40 UTC
  The station SWISS-MUHEN recorded bursts of type 5, 2, 3 (AR4495):

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62/63
 
SDO
(EIT304)

 
 
 
Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 
 
NOAA
Space Weather
Prediction Center

July 13, 2026
   08:39-08:40 UTC
  The station SWISS-MUHEN recorded bursts of type 5:

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62

SOHO
(sunspot)

SDO
(EIT304)

NOAA
Space Weather
Prediction Center

July 9, 2026
   12:41 - 13:52 UTC
  The station SWISS-MUHEN recorded bursts of type 3

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62
   
   
SOHO
(sunspot)

SDO
(EIT304)

NOAA
Space Weather
Prediction Center

June 8, 2026
   09:28 - 11:33 UTC
  The station SWISS-MUHEN recorded bursts of type 3, 5:

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62

SDO
(EIT304)

 
 
 
Radio Flux Density
Polaris. 62

SOHO
(sunspot)

 

SDO
(1700)

 

NOAA
Space Weather
Prediction Center

June 06, 2026
   13:46 UTC
  The station SWISS-MUHEN recorded bursts of type 2:

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

June 3, 2026
   xx:xx - xx:xx UTC
  The station SWISS-MUHEN recorded bursts of type x (ARxxxx):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

SDO
(1700)

 

Radio Flux Density
Polaris. 03/62/63
 
SDO
(EIT304)

 

SDO
(1700)

 

NOAA
Space Weather
Prediction Center

June 2, 2026
   xx:xx - xx:xx UTC
  The station SWISS-MUHEN recorded bursts of type x (ARxxxx):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62/63
 
Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

May 27, 2026
   12:16 UTC
  The station SWISS-MUHEN recorded bursts of type 3 / 5:

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

May 15, 2026
   13:11 - 13:14 / 16:12 - 16:14 UTC
  The station SWISS-MUHEN recorded bursts of type 5, 3 (AR4435):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 03: LPDA
     

May 12, 2026
   14:56 - 15:06 UTC
  The station SWISS-MUHEN recorded bursts of type 3:

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

May 10, 2026
   13:26 - 13:36 UTC
  The station SWISS-MUHEN recorded bursts of type 2 (AR4436):

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

May 2, 2026
   10:51 - 11:04 UTC
  The station SWISS-MUHEN recorded bursts of type 2:

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

April 24, 2026
   xx:xx - xx:xx UTC
  The station SWISS-MUHEN recorded bursts of type 3, 2:

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

April 23, 2026
   xx:xx - xx:xx UTC
  The station SWISS-MUHEN recorded bursts of type 3:

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62: RHPC

NOAA
Space Weather
Prediction Center
   
SOHO
(sunspot)

 

SDO
(EIT304)

 

SDO
(1600)

 

April 22, 2026
   xx:xx - xx:xx UTC
  The station SWISS-MUHEN recorded bursts of type 5, 3:

Radio Flux Density
Polaris. 03/62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

April 16, 2026
   11:55 - 11:56 UTC
  The station SWISS-MUHEN recorded bursts of type 3:

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

April 8, 2026
   13:29 UTC
  The station SWISS-MUHEN recorded bursts of type 3:

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SDO
(EIT304)

 

NOAA
Space Weather
Prediction Center

March 25, 2026
   13:10 UTC
  The station SWISS-MUHEN recorded bursts of type 3:

Radio Flux Density
Polaris. 62

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SOHO
(EIT304)

 

NOAA
Space Weather
Prediction Center

March 18, 2026
   08:41 - 08:55 UTC
  The station SWISS-MUHEN recorded bursts of type 3, 2:

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SOHO
(EIT304)

 

NOAA
Space Weather
Prediction Center

March 16, 2026
   12:07 - 12:34 UTC
  The station SWISS-MUHEN recorded bursts of type 2, 3:

Radio Flux Density
Polaris. 62/63

Radio Flux Density
Polaris. 62: RHPC

SOHO
(sunspot)

 

SOHO
(EIT304)

 

NOAA
Space Weather
Prediction Center