26 April 2014
⇐20140425 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140427⇒

NOAA
5 Active Regions
12038
12042
12044
12045
12046

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04N48
(48",764") 		E37-W32
(69) 		5.4 0.2 7.2e32
2 E30S60
(-237",-790") 		E48-E03
(45) 		1.5 -0.6 -1.0e33
3 W25S10
(405",-94") 		W19-W32
(13) 		0.7 10.4 2.0e33

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 26-Apr-2014 23:35 UT .