15 July 2019
⇐20190714 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190716⇒

NOAA
1 Active Region
12744

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 W06S18
(97",-366") 		E16-W21
(37) 		4.9 0.0 4.5e16
2 W06N63
(45",805") 		E79-W65
(144) 		4.9 0.9 1.3e21
3 E01S57
(-10",-828") 		E49-W55
(104) 		3.9 -0.7 -9.0e20
4 E45S33
(-559",-555") 		E50-E42
(8) 		0.2 -0.4 -2.4e19
5 W38S15
(565",-292") 		W35-W41
(6) 		0.1 -0.7 -1.1e19
6 W37S03
(574",-111") 		W35-W41
(6) 		0.1 -0.6 -7.7e18
7 W28S25
(399",-453") 		W26-W30
(4) 		0.1 -1.8 -2.2e19
8 W18N08
(282",69") 		W16-W19
(3) 		0.0 -1.0 -8.2e18
9 E14S02
(-223",-99") 		E15-E12
(3) 		0.0 -2.7 -2.0e19
10 W12N29
(166",396") 		W10-W13
(3) 		0.0 -0.7 -5.7e18
11 E11N05
(-186",19") 		E13-E10
(3) 		0.0 -1.6 -9.2e18

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 15-Jul-2019 23:30 UT .