14 August 2012
⇐20120813 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120815⇒

NOAA
5 Active Regions
11540
11542
11543
11544
11545

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32S20
(-475",-403") 		E59-E18
(41) 		3.2 2.2 3.1e33
2 W25N29
(358",364") 		W19-W32
(13) 		0.6 -1.8 -3.6e32
3 E39N52
(-369",693") 		E56-E23
(33) 		0.5 1.0 4.4e32
4 W16S41
(199",-693") 		W11-W20
(9) 		0.1 -2.0 -1.7e32
5 E10N67
(-66",825") 		E16-E02
(14) 		0.1 -0.5 -5.1e31
6 W51N18
(700",222") 		W48-W54
(6) 		0.0 -5.4 -1.7e32
7 E07N59
(-56",749") 		E10-E02
(8) 		0.0 -0.9 -2.7e31

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 14-Aug-2012 23:00 UT .