26 August 2018
⇐20180825 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180827⇒

NOAA
2 Active Regions
12719
12720

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 W05S08
(79",-250") 		E29-W34
(63) 		13.3 -0.3 -7.0e20
2 W26N66
(166",820") 		E66-W67
(133) 		4.8 1.4 8.7e21
3 W17S66
(114",-908") 		W08-W29
(21) 		0.2 -1.0 -7.0e20
4 E02S68
(-12",-919") 		E11-W05
(16) 		0.1 -1.3 -4.5e20
5 E21N38
(-269",498") 		E25-E17
(8) 		0.1 -0.9 -1.6e19

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 26-Aug-2018 23:10 UT .