Solar Demon Dimming Detection (sc)

Science! running on SDO/AIA 211 Synoptic data
2 minute cadence, typical delay 7 days
(detection version 1.00)
(view all Solar Demon detection tools)

Overview of dimming 21039
Detector 14 day operating status:

Last detected dimming:
   221 hours and 55 minutes ago (2026-01-03 23:07 UTC)


Overview for dimming #:
   21039           back to overview

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

   base difference ( percentage )
   running difference ( percentage )

more

more

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Details for dimming #: 21039          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2025-12-21 22:25:5910.00.00.00.00 , 0.008740397
2025-12-21 22:27:5920.00.00.00.00 , 0.008740398
2025-12-21 22:29:5930.00.00.00.00 , 0.008740399
2025-12-21 22:31:5940.00.00.00.00 , 0.008740400
2025-12-21 22:33:5950.00.00.00.00 , 0.008740401
2025-12-21 22:35:596-0.1-0.9-8.20.014 , 0.008740402
2025-12-21 22:37:597-3.8-17.1-11.30.7201-8.6-24.9-0.42, -0.120.440.008740403
2025-12-21 22:39:598-9.8-56.6-13.31.0298-8.2-24.4-0.41, -0.120.430.008740404
2025-12-21 22:41:599-10.1-29.8-15.91.2344-7.8-24.1-0.41, -0.110.425.318740405
2025-12-21 22:43:5910-14.4-43.3-19.91.5437-7.5-24.1-0.41, -0.100.420.008740406
2025-12-21 22:45:5911-11.0-40.5-16.91.4402-6.5-23.5-0.40, -0.090.410.008740407
2025-12-21 22:47:5912-11.4-46.1-15.31.6457-5.6-22.7-0.39, -0.070.400.008740408
2025-12-21 22:49:5913-15.9-52.3-16.31.9552-6.0-23.0-0.39, -0.080.400.008740409
2025-12-21 22:51:5914-16.6-55.6-17.31.7513-6.2-23.2-0.40, -0.080.400.008740410
2025-12-21 22:53:5915-18.0-58.0-18.21.9558-6.0-23.1-0.40, -0.080.400.008740411
2025-12-21 22:55:5916-18.4-60.9-18.81.8525-5.9-23.0-0.39, -0.080.400.008740412
2025-12-21 22:57:5917-17.3-58.1-19.31.7505-5.9-23.0-0.39, -0.080.400.008740413
2025-12-21 22:59:5918-20.9-60.5-19.62.0606-6.1-22.9-0.39, -0.080.400.008740414
2025-12-21 23:01:5919-21.7-63.4-20.42.1618-6.0-22.9-0.39, -0.080.400.008740415
2025-12-21 23:03:5920-18.8-61.9-20.91.8527-6.0-22.8-0.39, -0.080.400.008740416
2025-12-21 23:05:5921-17.7-59.4-21.81.7514-6.0-22.7-0.39, -0.080.400.008740417

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 )