19 September 2016
⇐20160918 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160920⇒

NOAA
3 Active Regions
12592
12593
12594

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28S27
(397",-520") 		42
(3.5e05) 		-0.6 5.7 2.0e34
2 E37N67
(-226",834") 		E89-W50
(139) 		2.6 0.6 2.6e33
3 W13S64
(97",-901") 		E47-W59
(106) 		1.3 -1.1 -4.3e33
4 W03N13
(54",95") 		E02-W07
(9) 		0.2 -1.5 -5.5e31
5 W09N49
(102",640") 		W04-W13
(9) 		0.1 -0.9 -4.4e31

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 19-Sep-2016 20:30 UT .