Solar Demon Dimming Detection (qlk)

Quick-look! running in real time on SDO/AIA 211 QLK data
3 minute cadence, typical delay 15 minutes
(detection version 1.00)
(view all Solar Demon detection tools)

Overview of dimming 13523
Detector 24h operating status:

Last processed image:    
   0 hours and 23 minutes ago (2026-05-18 21:06 UTC)
Last detected dimming:
   23 hours and 41 minutes ago (2026-05-17 21:48 UTC)


Overview for dimming #:
   13523           back to overview

Animations and graphs
   derotated original images ( non-derotated )
   dimming intensity
   dimming mask

   base difference ( percentage )
   running difference ( percentage )

more

more

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Details for dimming #: 13523          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2025-08-05 09:18:111-2.8-17.1-13.01.2150 , 0.003491503
2025-08-05 09:21:112-4.1-20.7-14.62.1236 , 0.003491510
2025-08-05 09:24:113-1.0-11.5-20.70.453 , 0.003491511
2025-08-05 09:27:114-4.4-24.8-17.01.7212 , 0.003491512
2025-08-05 09:30:115-5.9-28.3-15.32.228125.2-64.8-0.83, 0.390.910.003491513
2025-08-05 09:33:116-7.5-30.7-12.23.037525.4-64.9-0.83, 0.390.912.943491514
2025-08-05 09:36:477-7.4-31.4-13.52.935225.3-64.8-0.83, 0.390.910.003491515
2025-08-05 09:39:118-7.7-31.0-13.03.137525.3-65.0-0.83, 0.390.910.003491518
2025-08-05 09:42:359-7.7-29.7-11.53.340825.4-65.0-0.83, 0.390.920.003491519
2025-08-05 09:45:1110-10.2-29.6-13.63.655725.4-65.0-0.83, 0.390.910.853491522
2025-08-05 09:48:1111-11.3-29.8-13.43.963325.2-64.7-0.83, 0.390.910.863491523
2025-08-05 09:51:1112-11.0-28.2-15.03.660919.1-1.4-0.02, 0.230.230.863491528
2025-08-05 09:54:1113-11.8-28.3-15.53.563319.4-1.8-0.03, 0.230.240.003491529
2025-08-05 09:57:1114-12.3-27.5-15.63.665719.5-1.8-0.03, 0.240.240.003491530

The research leading to these results has received funding from the European Commission's Seventh Framework Programme (FP7/2007-2013) under the grant agreement nr. 263506 [AFFECTS], and grant agreement nr. 263252 [COMESEP]
Solar Demon is still under construction.
( Legal notices - SWSC (Volume 5, A18, 2015) research article:Solar Demon - an approach to detecting flares, dimmings, and EUV waves on SDO/AIA images )