23 August 2015
⇐20150822 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150824⇒

NOAA
3 Active Regions
12403
12404
12401

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29S14
(449",-328") 		W12-W45
(33) 		4.1 4.5 6.7e33
2 E46S27
(-606",-502") 		E64-E30
(34) 		1.4 -2.2 -2.8e33
3 E36N10
(-552",66") 		E39-E30
(9) 		0.9 -6.7 -2.2e33
4 W70N38
(700",550") 		W64-W82
(18) 		0.7 0.9 1.7e33
5 E41S15
(-597",-328") 		E43-E39
(4) 		0.0 -0.7 -1.4e31

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 23-Aug-2015 23:35 UT .