15 August 2013
⇐20130814 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130816⇒

NOAA
7 Active Regions
11817
11818
11819
11820
11821
11814
11816

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W10N32
(136",411") 		E34-W43
(77) 		8.5 -3.9 -9.3e33
2 E34N64
(-231",810") 		E59-E16
(43) 		0.5 0.4 3.2e32

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-Aug-2013 21:00 UT .