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 21373
Detector 14 day operating status:

Last detected dimming:
   213 hours and 31 minutes ago (2026-02-24 23:39 UTC)


Overview for dimming #:
   21373           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

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Details for dimming #: 21373          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2026-02-21 11:21:5910.00.00.00.00 , 0.008799481
2026-02-21 11:23:5920.00.00.00.00 , 0.008799482
2026-02-21 11:25:5930.00.00.00.00 , 0.008799483
2026-02-21 11:27:5940.00.00.00.00 , 0.008799484
2026-02-21 11:29:595-2.2-12.6-15.00.5139-4.1-29.5-0.50, 0.040.500.008799485
2026-02-21 11:31:596-5.6-18.3-18.61.0286-6.2-29.4-0.49, 0.000.490.008799486
2026-02-21 11:33:597-8.4-22.1-19.51.4403-6.1-29.6-0.50, 0.000.500.968799487
2026-02-21 11:35:598-10.3-24.7-19.81.8505-5.7-30.0-0.50, 0.010.501.168799488
2026-02-21 11:37:599-12.4-26.8-19.82.0579-5.8-30.0-0.50, 0.000.500.938799489
2026-02-21 11:39:5910-13.6-28.2-19.72.3639-5.9-30.1-0.51, 0.000.510.008799490
2026-02-21 11:41:5911-15.6-29.4-18.72.7765-5.7-30.3-0.51, 0.010.510.008799491
2026-02-21 11:43:5912-17.3-31.8-19.32.8803-5.8-30.2-0.51, 0.010.510.008799492
2026-02-21 11:45:5913-18.4-32.0-18.63.1868-5.7-30.1-0.51, 0.010.510.008799493
2026-02-21 11:47:5914-19.3-32.8-18.83.1879-5.6-29.9-0.50, 0.010.500.008799494
2026-02-21 11:49:5915-20.9-33.8-20.63.2901-5.7-29.8-0.50, 0.010.500.008799495
2026-02-21 11:51:5916-21.6-41.4-19.63.3930-5.8-29.9-0.50, 0.010.500.008799496
2026-02-21 11:53:5917-22.3-47.2-20.03.3932-5.8-30.1-0.51, 0.010.510.008799497
2026-02-21 11:55:5918-23.3-47.6-18.03.61020-5.8-30.2-0.51, 0.000.510.008799498
2026-02-21 11:57:5919-23.0-46.1-19.03.61011-5.9-30.3-0.51, 0.000.510.008799499
2026-02-21 11:59:5920-24.4-49.8-18.33.81078-5.8-30.3-0.51, 0.000.510.008799500
2026-02-21 12:01:5921-25.1-46.8-18.24.01121-5.8-30.3-0.51, 0.010.510.008799501

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 )