10 September 2018
⇐20180909 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180911⇒

NOAA
1 Active Region
12721

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 E01N61
(-6",765") 		E59-W62
(121) 		7.0 1.0 5.4e21
2 E46S13
(-675",-288") 		E64-E31
(33) 		2.3 -0.9 -1.3e21
3 W07N07
(118",-5") 		E08-W16
(24) 		2.2 -0.2 -9.4e19
4 W42S07
(636",-201") 		W34-W52
(18) 		1.4 1.6 1.1e21
5 W37N23
(525",279") 		W26-W49
(23) 		1.2 0.5 2.7e20
6 W07S12
(106",-309") 		W05-W08
(3) 		0.0 -1.1 -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 10-Sep-2018 23:10 UT .