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 20791
Detector 14 day operating status:

Last detected dimming:
   208 hours and 45 minutes ago (2025-12-06 23:37 UTC)


Overview for dimming #:
   20791           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

more


Details for dimming #: 20791          
timeseq #total
intensity
max
intensity
median
intensity
areasizelatlonx,y in R☉dist.
R☉
detectionImg ID
2025-11-18 22:33:5910.00.00.00.00 , 0.008696598
2025-11-18 22:35:592-0.6-5.8-9.10.666 , 0.008696599
2025-11-18 22:37:593-3.9-10.9-10.93.2363-26.7-64.6-0.82, -0.470.940.008696600
2025-11-18 22:39:594-8.4-15.8-12.95.6629-26.6-65.1-0.82, -0.470.940.008696601
2025-11-18 22:41:595-12.1-26.5-13.46.9766-26.3-66.0-0.83, -0.460.950.008696602
2025-11-18 22:43:596-16.7-40.0-14.09.0960-26.1-66.3-0.83, -0.460.950.008696603
2025-11-18 22:45:597-20.1-51.0-13.410.51077-26.0-66.1-0.83, -0.460.950.978696604
2025-11-18 22:47:598-24.0-62.2-13.112.11170-25.9-66.0-0.83, -0.460.951.148696605
2025-11-18 22:49:599-27.7-72.3-14.413.91253-25.7-66.1-0.83, -0.450.950.938696606
2025-11-18 22:51:5910-32.0-79.4-15.016.41382-25.6-66.1-0.83, -0.450.951.608696607
2025-11-18 22:53:5911-37.6-86.5-15.818.61574-25.6-65.4-0.83, -0.450.942.008696608
2025-11-18 22:55:5912-45.0-90.1-16.720.21831-25.7-63.9-0.82, -0.450.942.808696609
2025-11-18 22:57:5913-50.3-90.9-17.222.01982-25.8-62.4-0.81, -0.460.932.118696610
2025-11-18 22:59:5914-56.0-91.3-17.423.82183-25.8-61.6-0.80, -0.460.922.508696611
2025-11-18 23:01:5915-60.3-91.8-17.526.22325-25.9-61.2-0.80, -0.460.920.868696612
2025-11-18 23:03:5916-64.2-92.2-17.428.62461-26.1-60.4-0.79, -0.460.920.948696613
2025-11-18 23:05:5917-66.2-91.8-17.628.32498-26.2-60.1-0.79, -0.460.910.008696614
2025-11-18 23:07:5918-68.4-90.2-17.029.92579-26.3-59.5-0.78, -0.470.910.008696615
2025-11-18 23:09:5919-69.9-89.3-17.629.52545-26.4-59.3-0.78, -0.470.910.008696616
2025-11-18 23:11:5920-71.5-88.8-17.330.12606-26.5-59.0-0.77, -0.470.910.008696617
2025-11-18 23:13:5921-71.8-87.2-16.932.42662-26.6-59.0-0.77, -0.470.911.138696618
2025-11-18 23:15:5922-74.6-86.9-16.334.02837-26.7-58.8-0.77, -0.470.911.438696619
2025-11-18 23:17:5923-74.7-85.5-15.834.92863-26.7-58.7-0.77, -0.470.910.878696620
2025-11-18 23:19:5924-75.5-85.5-14.935.82974-26.8-58.6-0.77, -0.470.900.008696621
2025-11-18 23:21:5925-75.4-84.6-14.336.63065-26.8-58.5-0.77, -0.480.900.008696622
2025-11-18 23:23:5926-76.2-85.5-14.138.13162-26.9-58.4-0.77, -0.480.900.008696623
2025-11-18 23:25:5927-75.7-85.5-13.937.13164-26.9-58.4-0.77, -0.480.900.008696624
2025-11-18 23:27:5928-76.0-86.0-13.440.23286-27.0-58.2-0.77, -0.480.900.008696625

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 )