15 September 2013
⇐20130914 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130916⇒

NOAA
4 Active Regions
11839
11841
11838
11840

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W54N33
(652",455") 		W26-W76
(50) 		1.6 -2.1 -3.1e33
2 W13S02
(216",-156") 		W03-W20
(17) 		1.4 5.5 1.6e33
3 E61N35
(-684",500") 		E65-E55
(10) 		0.3 0.3 1.3e32
4 E08N18
(-120",183") 		E11-E01
(10) 		0.1 9.0 2.0e32
5 E49N07
(-720",39") 		E53-E46
(7) 		0.1 -3.4 -1.4e32

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 15-Sep-2013 23:35 UT .