15 November 2018
20181114 Week Rotation Today Rotation Week 20181116

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S12
(-123",-247")
E29-W20
(49)
7.4 -0.3 -4.0e20
2 W03N59
(28",811")
E78-W37
(115)
5.3 0.9 4.7e21
3 E09S62
(-68",-882")
E36-W56
(92)
1.8 -0.8 -2.6e21
4 W26S40
(328",-651")
W21-W31
(10)
0.3 -0.7 -1.2e20
5 W33S51
(333",-779")
W29-W38
(9)
0.1 -1.4 -1.8e20
6 W15S37
(199",-616")
W12-W17
(5)
0.1 -0.9 -2.6e19

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-Nov-2018 20:30 UT .