29 April 2014
⇐20140428 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140430⇒

NOAA
6 Active Regions
12045
12047
12048
12049
12050
12044

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W28N50
(286",766") 		E04-W46
(50) 		2.8 -0.0 -2.8e30
2 E16S60
(-133",-792") 		E23-W09
(32) 		0.7 -0.4 -2.7e32
3 W23S54
(217",-730") 		W09-W32
(23) 		0.7 -0.4 -2.1e32

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 29-Apr-2014 23:35 UT .