Solar Demon Dimming Detection (qlk)

Quick-look! running in real time on SDO/AIA 211 QLK data
3 minute cadence, typical delay 15 minutes
(detection version 1.00)

(view all Solar Demon detection tools)

	Overview of dimming 15140
Detector 24h operating status: Last processed image: 0 hours and 19 minutes ago (2026-02-28 12:18 UTC) Last detected dimming: 1 hours and 27 minutes ago (2026-02-28 11:09 UTC) Overview for dimming #: 15140 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 #: 15140
time seq # total
intensity max
intensity median
intensity area size lat lon x,y in R☉ dist.
R☉ detection Img ID

2026-02-22 18:21:11 1 0.0 0.0 0.0 0.0 0 , 0.00 3678515

2026-02-22 18:24:11 2 0.0 0.0 0.0 0.0 0 , 0.00 3678516

2026-02-22 18:27:11 3 -1.0 -7.0 -7.3 0.8 128 , 0.00 3678517

2026-02-22 18:30:11 4 -4.3 -11.7 -8.8 2.9 457 6.8 -58.2 -0.85, 0.18 0.87 0.88 3678518

2026-02-22 18:33:11 5 -8.0 -12.9 -10.2 5.0 759 6.1 -59.0 -0.86, 0.17 0.88 0.00 3678519

2026-02-22 18:36:11 6 -12.8 -14.8 -10.4 7.6 1159 5.7 -59.6 -0.87, 0.16 0.88 4.61 3678520

2026-02-22 18:39:11 7 -17.6 -18.2 -11.2 9.8 1504 7.0 -58.1 -0.85, 0.19 0.87 1.13 3678521

2026-02-22 18:42:11 8 -22.2 -21.4 -11.3 12.0 1851 7.8 -57.2 -0.84, 0.20 0.87 0.88 3678522

2026-02-22 18:45:11 9 -28.9 -22.7 -12.1 15.4 2272 8.3 -57.1 -0.84, 0.21 0.87 0.00 3678523

2026-02-22 18:48:11 10 -32.9 -22.5 -12.0 17.4 2548 8.5 -56.8 -0.84, 0.22 0.86 0.00 3678524

2026-02-22 18:51:11 11 -35.1 -22.5 -11.6 18.3 2754 8.8 -56.3 -0.83, 0.22 0.86 0.00 3678525

2026-02-22 18:54:11 12 -36.8 -23.4 -12.0 18.7 2839 9.2 -56.1 -0.83, 0.23 0.86 0.00 3678526

2026-02-22 18:57:11 13 -42.3 -24.4 -12.0 21.9 3228 9.1 -56.0 -0.83, 0.23 0.86 0.00 3678527

2026-02-22 19:00:11 14 -47.4 -26.3 -12.6 23.8 3460 8.9 -56.0 -0.83, 0.22 0.86 0.00 3678528

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 )

time	seq #	total intensity	max intensity	median intensity	area	size	lat	lon	x,y in R☉	dist. R☉	detection	Img ID
2026-02-22 18:21:11	1	0.0	0.0	0.0	0.0	0			,		0.00	3678515
2026-02-22 18:24:11	2	0.0	0.0	0.0	0.0	0			,		0.00	3678516
2026-02-22 18:27:11	3	-1.0	-7.0	-7.3	0.8	128			,		0.00	3678517
2026-02-22 18:30:11	4	-4.3	-11.7	-8.8	2.9	457	6.8	-58.2	-0.85, 0.18	0.87	0.88	3678518
2026-02-22 18:33:11	5	-8.0	-12.9	-10.2	5.0	759	6.1	-59.0	-0.86, 0.17	0.88	0.00	3678519
2026-02-22 18:36:11	6	-12.8	-14.8	-10.4	7.6	1159	5.7	-59.6	-0.87, 0.16	0.88	4.61	3678520
2026-02-22 18:39:11	7	-17.6	-18.2	-11.2	9.8	1504	7.0	-58.1	-0.85, 0.19	0.87	1.13	3678521
2026-02-22 18:42:11	8	-22.2	-21.4	-11.3	12.0	1851	7.8	-57.2	-0.84, 0.20	0.87	0.88	3678522
2026-02-22 18:45:11	9	-28.9	-22.7	-12.1	15.4	2272	8.3	-57.1	-0.84, 0.21	0.87	0.00	3678523
2026-02-22 18:48:11	10	-32.9	-22.5	-12.0	17.4	2548	8.5	-56.8	-0.84, 0.22	0.86	0.00	3678524
2026-02-22 18:51:11	11	-35.1	-22.5	-11.6	18.3	2754	8.8	-56.3	-0.83, 0.22	0.86	0.00	3678525
2026-02-22 18:54:11	12	-36.8	-23.4	-12.0	18.7	2839	9.2	-56.1	-0.83, 0.23	0.86	0.00	3678526
2026-02-22 18:57:11	13	-42.3	-24.4	-12.0	21.9	3228	9.1	-56.0	-0.83, 0.23	0.86	0.00	3678527
2026-02-22 19:00:11	14	-47.4	-26.3	-12.6	23.8	3460	8.9	-56.0	-0.83, 0.22	0.86	0.00	3678528