13 December 2010
⇐20101212 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101214⇒

NOAA
4 Active Regions
11131
11133
11134
11135

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09S19
(141",-309") 		E15-W27
(42) 		4.6 -0.6 -6.1e32
2 E35N16
(-537",281") 		E54-E13
(41) 		1.7 -4.5 -3.1e33
3 W51S13
(742",-211") 		W36-W67
(31) 		1.4 -0.6 -5.8e32
4 E38S46
(-414",-695") 		E66-E22
(44) 		1.0 0.9 7.7e32
5 E38S11
(-590",-181") 		E43-E32
(11) 		0.2 -0.8 -5.5e31

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 13-Dec-2010 23:30 UT .