14 April 2015
⇐20150413 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150415⇒

NOAA
5 Active Regions
12320
12321
12322
12323
12318

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W17S54
(163",-723") 		E84-W47
(131) 		7.9 -1.9 -1.0e34
2 E55S22
(-723",-309") 		E64-E41
(23) 		0.9 2.4 1.9e33
3 E04N40
(-47",682") 		E12-W06
(18) 		0.3 2.1 3.5e32

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 14-Apr-2015 23:35 UT .