10 April 2018
⇐20180409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180411⇒

NOAA
1 Active Region
12703

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 W39N09
(598",219") 		W15-W67
(52) 		2.3 -1.5 -1.6e33
2 E01N15
(-10",346") 		E17-W13
(30) 		2.2 -0.4 -1.8e32
3 W59S72
(251",-892") 		W32-W86
(54) 		0.3 -0.9 -1.4e33
4 W28S79
(84",-920") 		E18-W56
(74) 		0.2 -0.9 -7.0e32

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-Apr-2018 23:30 UT .