13 March 2015
⇐20150312 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150314⇒

NOAA
4 Active Regions
12297
12298
12299
12296

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E51S59
(-393",-779") 		E70-W68
(138) 		4.0 -1.3 -8.2e33
2 E41N32
(-538",583") 		E64-E18
(46) 		2.5 2.5 5.3e33
3 W44S03
(667",45") 		W37-W53
(16) 		0.5 -1.1 -2.8e32

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-Mar-2015 22:35 UT .