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 20921
Detector 14 day operating status:

Last detected dimming:
   199 hours and 11 minutes ago (2025-12-06 23:37 UTC)


Overview for dimming #:
   20921           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 #: 20921          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2025-12-04 12:27:5910.00.00.00.00 , 0.008718510
2025-12-04 12:29:5920.00.00.00.00 , 0.008718511
2025-12-04 12:31:5930.00.00.00.00 , 0.008718512
2025-12-04 12:33:5940.00.00.00.00 , 0.008718513
2025-12-04 12:35:5950.00.00.00.00 , 0.008718514
2025-12-04 12:37:5960.00.00.00.00 , 0.008718515
2025-12-04 12:39:5970.00.00.00.00 , 1.238718516
2025-12-04 12:41:5980.00.0-13.80.01 , 1.608718517
2025-12-04 12:43:599-0.6-4.0-9.20.362-16.2-42.1-0.65, -0.290.711.588718518
2025-12-04 12:45:5910-2.5-7.9-10.80.8205-16.0-42.1-0.65, -0.280.710.008718519
2025-12-04 12:47:5911-4.0-10.0-11.31.2298-16.2-42.0-0.65, -0.290.711.178718520
2025-12-04 12:49:5912-7.7-18.8-11.52.0485-17.7-42.3-0.65, -0.310.721.278718521
2025-12-04 12:51:5913-10.1-16.2-11.12.8675-17.1-41.8-0.64, -0.300.711.368718522
2025-12-04 12:53:5914-18.5-19.4-12.75.51238-8.9-46.6-0.73, -0.160.744.838718523
2025-12-04 12:55:5915-22.4-20.5-12.86.51457-8.7-46.9-0.73, -0.160.759.618718524
2025-12-04 12:57:5916-24.9-22.6-13.77.11571-7.7-47.7-0.74, -0.140.750.848718525
2025-12-04 12:59:5917-28.6-23.6-14.57.61699-6.6-46.8-0.73, -0.120.740.008718526
2025-12-04 13:01:5918-29.5-25.4-14.77.81745-4.0-47.3-0.74, -0.080.750.008718527
2025-12-04 13:03:5919-31.7-26.2-14.98.41880-4.8-47.3-0.74, -0.090.750.008718528
2025-12-04 13:05:5920-31.8-25.8-14.98.51911-2.2-47.6-0.75, -0.040.750.008718529
2025-12-04 13:07:5921-33.5-24.6-14.89.02027-2.7-47.7-0.75, -0.050.750.008718530
2025-12-04 13:09:5922-34.0-25.0-14.79.12038-1.4-47.6-0.75, -0.030.750.008718531
2025-12-04 13:11:5923-33.5-24.4-14.88.91987-0.4-47.5-0.75, -0.010.750.008718532
2025-12-04 13:13:5924-34.0-23.7-14.99.12024-1.0-46.7-0.74, -0.020.740.008718533
2025-12-04 13:15:5925-34.1-23.2-14.99.12045-3.4-45.8-0.72, -0.070.730.008718534
2025-12-04 13:17:5926-34.2-22.9-15.39.12045-5.1-45.4-0.72, -0.090.720.008718535
2025-12-04 13:19:5927-35.6-23.3-15.49.22074-6.8-45.3-0.71, -0.130.730.008718536

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 )