8 September 2019
⇐20190907 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190909⇒

NOAA
1 Active Region
12748

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 E02S16
(-27",-377") 		E27-W18
(45) 		6.0 -0.0 -3.7e19
2 E09N69
(-53",841") 		E55-W83
(138) 		4.1 1.4 1.8e21
3 W17S67
(106",-916") 		E16-W39
(55) 		0.3 -0.5 -8.8e19
4 W41N02
(631",-61") 		W37-W45
(8) 		0.2 -0.5 -1.8e19
5 W41N19
(592",228") 		W38-W45
(7) 		0.1 -0.5 -7.8e18
6 W30S13
(468",-322") 		W28-W33
(5) 		0.1 -0.5 -6.0e18
7 W31N09
(493",39") 		W29-W33
(4) 		0.0 -1.4 -1.0e19

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-Sep-2019 23:40 UT .