22 January 2019
⇐20190121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190123⇒

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 W27N20
(417",411") 		E10-W49
(59) 		6.7 0.6 1.7e21
2 W09S20
(145",-248") 		E08-W16
(24) 		2.1 0.1 4.7e19
3 E05S73
(-25",-904") 		E69-W82
(151) 		1.9 -1.2 -5.0e21
4 E19N62
(-150",895") 		E66-W41
(107) 		1.9 0.8 3.4e21
5 W25N59
(210",873") 		W21-W29
(8) 		0.1 -1.1 -1.3e20

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 22-Jan-2019 20:30 UT .