15 January 2019
⇐20190114 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190116⇒

NOAA
0 Active Regions

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W26S57
(234",-775") 		E77-W44
(121) 		6.5 -0.8 -5.0e21
2 E01S20
(-10",-259") 		E26-W20
(46) 		4.1 0.0 8.5e18
3 E18N64
(-129",907") 		E49-W02
(51) 		0.6 0.7 1.2e21
4 W22N05
(368",161") 		W19-W26
(7) 		0.2 -0.8 -4.6e19
5 W52S41
(582",-599") 		W47-W58
(11) 		0.2 -0.5 -8.9e19
6 W17S30
(242",-420") 		W15-W18
(3) 		0.0 -1.5 -2.1e19

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-Jan-2019 20:30 UT .