24 July 2012
⇐20120723 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120725⇒

NOAA
6 Active Regions
11525
11526
11527
11528
11529
11530

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W32N53
(303",711") 		E20-W56
(76) 		3.6 0.6 1.8e33
2 E34N08
(-523",64") 		E54-E16
(38) 		3.3 -1.7 -2.0e33
3 W33S39
(399",-654") 		W26-W40
(14) 		0.6 0.5 2.1e32
4 E12N07
(-189",28") 		E13-E10
(3) 		0.1 -1.5 -2.4e31

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 24-Jul-2012 23:00 UT .