11 August 2015
⇐20150810 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150812⇒

NOAA
4 Active Regions
12394
12396
12398
12395

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E13N64
(-91",799") 		E50-W41
(91) 		3.5 0.5 1.7e33
2 E22S02
(-355",-124") 		E31-E15
(16) 		1.4 4.8 1.7e33
3 E34N40
(-407",533") 		E43-E27
(16) 		0.5 0.8 2.1e32
4 W55N59
(394",778") 		W42-W71
(29) 		0.4 0.7 4.9e32

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 11-Aug-2015 23:35 UT .