22 June 2018
⇐20180621 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180623⇒

NOAA
3 Active Regions
12713
12714
12715

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 E19S19
(-289",-336") 		E66-W43
(109) 		11.7 -0.5 -1.7e21
2 W37N54
(335",751") 		E69-W56
(125) 		5.3 0.7 4.1e21
3 E33S62
(-247",-843") 		E53-W51
(104) 		2.5 -0.7 -4.2e21
4 W49N26
(636",403") 		W47-W51
(4) 		0.0 1.9 6.1e19

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 22-Jun-2018 23:10 UT .