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 21358
Detector 14 day operating status:

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


Overview for dimming #:
   21358           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 #: 21358          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2026-02-18 11:15:5910.00.00.00.00 , 0.008797324
2026-02-18 11:17:5920.00.00.00.00 , 0.008797325
2026-02-18 11:19:5930.00.00.00.00 , 0.008797326
2026-02-18 11:21:594-0.40.0-62.40.07 , 0.008797327
2026-02-18 11:23:595-4.2-48.5-60.20.241 , 0.008797328
2026-02-18 11:25:596-8.2-87.4-39.10.385 , 0.008797329
2026-02-18 11:27:597-10.8-93.2-40.60.5122 , 0.008797330
2026-02-18 11:29:598-13.5-95.5-51.20.5146-14.4-36.2-0.58, -0.150.601.368797331
2026-02-18 11:31:599-12.9-95.2-58.50.5135-14.4-36.2-0.58, -0.150.602.938797332
2026-02-18 11:33:5910-12.0-93.3-58.90.5122-14.5-36.6-0.59, -0.160.611.108797333
2026-02-18 11:35:5911-11.6-92.5-32.30.6148-14.4-36.7-0.59, -0.160.611.358797334
2026-02-18 11:37:5912-9.1-80.5-19.40.6150-14.5-36.7-0.59, -0.160.610.008797335
2026-02-18 11:39:5913-8.3-72.6-15.50.7181-14.5-36.8-0.59, -0.160.610.008797336
2026-02-18 11:41:5914-8.8-64.3-17.80.9227-14.4-36.8-0.59, -0.160.610.008797337
2026-02-18 11:43:5915-7.6-48.1-16.90.9241-14.4-36.9-0.59, -0.150.610.008797338
2026-02-18 11:45:5916-7.4-39.5-22.30.8212-14.3-36.9-0.59, -0.150.610.008797339
2026-02-18 11:47:5917-6.6-32.1-24.00.7188-14.3-36.9-0.59, -0.150.610.008797340
2026-02-18 11:49:5918-5.7-24.3-26.00.6169 , 0.008797341
2026-02-18 11:51:5919-3.6-20.5-23.60.5138 , 0.008797342
2026-02-18 11:53:5920-3.2-18.7-17.80.5132 , 0.008797343
2026-02-18 11:55:5921-5.3-17.6-15.71.0261 , 0.008797344
2026-02-18 11:57:5922-5.7-17.9-14.81.2313 , 0.008797345
2026-02-18 11:59:5923-4.9-18.0-14.51.1298-16.3-32.8-0.53, -0.180.560.008797346

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 )