6 October 2019
⇐20191005 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191007⇒

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 W22N71
(120",867") 		E89-W79
(168) 		3.1 1.2 1.3e21
2 W43S30
(569",-549") 		W36-W50
(14) 		0.3 -0.8 -6.1e19
3 W09S67
(60",-918") 		E07-W24
(31) 		0.2 -0.5 -6.8e19
4 E06N24
(-90",283") 		E08-E02
(6) 		0.1 1.1 2.4e19
5 E27S70
(-151",-928") 		E42-E15
(27) 		0.1 -0.4 -2.3e19
6 E18S32
(-248",-595") 		E20-E14
(6) 		0.0 -1.2 -1.1e19
7 W18N27
(264",346") 		W16-W20
(4) 		0.0 -1.4 -9.2e18
8 E24S59
(-205",-868") 		E29-E21
(8) 		0.0 -0.4 -6.9e18
9 W35N08
(549",42") 		W34-W37
(3) 		0.0 2.5 1.6e19

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 6-Oct-2019 23:40 UT .