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 15439
Detector 24h operating status: Last processed image: 0 hours and 19 minutes ago (2026-04-18 15:30 UTC) Last detected dimming: 4 hours and 10 minutes ago (2026-04-18 11:39 UTC) Overview for dimming #: 15439 back to overview Animations and graphs derotated original images ( non-derotated ) dimming intensity dimming mask base difference ( percentage ) running difference ( percentage )	more	more	more

Details for dimming #: 15439
time seq # total
intensity max
intensity median
intensity area size lat lon x,y in R☉ dist.
R☉ detection Img ID

2026-04-15 11:36:11 1 0.0 0.0 0.0 0.0 0 , 0.00 3733555

2026-04-15 11:39:11 2 0.0 0.0 0.0 0.0 0 , 0.00 3733556

2026-04-15 11:42:11 3 0.0 0.0 0.0 0.0 0 , 0.00 3733559

2026-04-15 11:45:11 4 -1.8 -12.0 -13.9 0.4 92 , 0.00 3733560

2026-04-15 11:48:11 5 -6.2 -32.3 -13.8 1.2 259 16.1 -43.6 -0.67, 0.35 0.76 0.00 3733563

2026-04-15 11:51:11 6 -10.2 -41.9 -15.1 2.1 462 16.1 -43.7 -0.67, 0.35 0.76 1.91 3733564

2026-04-15 11:54:11 7 -17.4 -49.6 -14.9 3.8 809 16.0 -43.6 -0.67, 0.35 0.76 2.11 3733567

2026-04-15 11:57:11 8 -15.9 -26.0 -13.1 4.5 956 16.8 -43.4 -0.67, 0.36 0.76 0.00 3733568

2026-04-15 12:00:11 9 -13.9 -21.6 -11.6 5.0 1074 20.8 -38.2 -0.59, 0.43 0.73 0.00 3733571

2026-04-15 12:03:11 10 -17.6 -23.9 -12.1 6.0 1286 20.9 -38.6 -0.59, 0.43 0.73 0.00 3733572

2026-04-15 12:06:11 11 -21.3 -26.6 -12.8 7.1 1511 21.1 -38.5 -0.59, 0.43 0.73 0.00 3733575

2026-04-15 12:09:11 12 -25.7 -27.8 -13.4 8.1 1714 21.3 -38.9 -0.59, 0.44 0.74 0.00 3733576

2026-04-15 12:12:11 13 -34.1 -29.0 -13.1 10.4 2211 21.7 -39.7 -0.60, 0.44 0.75 0.00 3733579

2026-04-15 12:15:11 14 -36.8 -29.3 -12.8 11.2 2380 21.9 -40.2 -0.61, 0.45 0.75 0.00 3733580

2026-04-15 12:18:11 15 -36.6 -30.1 -13.1 11.1 2361 21.5 -39.4 -0.60, 0.44 0.74 0.00 3733583

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
2026-04-15 11:36:11	1	0.0	0.0	0.0	0.0	0			,		0.00	3733555
2026-04-15 11:39:11	2	0.0	0.0	0.0	0.0	0			,		0.00	3733556
2026-04-15 11:42:11	3	0.0	0.0	0.0	0.0	0			,		0.00	3733559
2026-04-15 11:45:11	4	-1.8	-12.0	-13.9	0.4	92			,		0.00	3733560
2026-04-15 11:48:11	5	-6.2	-32.3	-13.8	1.2	259	16.1	-43.6	-0.67, 0.35	0.76	0.00	3733563
2026-04-15 11:51:11	6	-10.2	-41.9	-15.1	2.1	462	16.1	-43.7	-0.67, 0.35	0.76	1.91	3733564
2026-04-15 11:54:11	7	-17.4	-49.6	-14.9	3.8	809	16.0	-43.6	-0.67, 0.35	0.76	2.11	3733567
2026-04-15 11:57:11	8	-15.9	-26.0	-13.1	4.5	956	16.8	-43.4	-0.67, 0.36	0.76	0.00	3733568
2026-04-15 12:00:11	9	-13.9	-21.6	-11.6	5.0	1074	20.8	-38.2	-0.59, 0.43	0.73	0.00	3733571
2026-04-15 12:03:11	10	-17.6	-23.9	-12.1	6.0	1286	20.9	-38.6	-0.59, 0.43	0.73	0.00	3733572
2026-04-15 12:06:11	11	-21.3	-26.6	-12.8	7.1	1511	21.1	-38.5	-0.59, 0.43	0.73	0.00	3733575
2026-04-15 12:09:11	12	-25.7	-27.8	-13.4	8.1	1714	21.3	-38.9	-0.59, 0.44	0.74	0.00	3733576
2026-04-15 12:12:11	13	-34.1	-29.0	-13.1	10.4	2211	21.7	-39.7	-0.60, 0.44	0.75	0.00	3733579
2026-04-15 12:15:11	14	-36.8	-29.3	-12.8	11.2	2380	21.9	-40.2	-0.61, 0.45	0.75	0.00	3733580
2026-04-15 12:18:11	15	-36.6	-30.1	-13.1	11.1	2361	21.5	-39.4	-0.60, 0.44	0.74	0.00	3733583