8 October 2019
⇐20191007 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191009⇒

NOAA
1 Active Region
12749

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 E10N69
(-60",855") 		E46-W82
(128) 		2.9 1.1 1.0e21
2 W14S23
(216",-462") 		W02-W21
(19) 		2.0 -0.2 -8.5e19
3 W15S63
(110",-898") 		E17-W47
(64) 		0.7 -0.9 -2.9e20
4 E42S60
(-326",-864") 		E58-E35
(23) 		0.4 -0.5 -1.1e20
5 E09N13
(-145",115") 		E11-E07
(4) 		0.1 -1.0 -1.1e19
6 W22S02
(357",-136") 		W20-W24
(4) 		0.1 -1.0 -1.0e19
7 W42N20
(600",257") 		W40-W44
(4) 		0.1 -1.7 -2.0e19
8 W31N02
(502",-55") 		W30-W33
(3) 		0.1 -0.7 -6.7e18
9 E06N05
(-95",-14") 		E07-E05
(2) 		0.0 -1.0 -5.9e18
10 E17S10
(-284",-268") 		E19-E15
(4) 		0.0 -1.1 -6.6e18

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 8-Oct-2019 23:40 UT .