26 July 2012
⇐20120725 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120727⇒

NOAA
7 Active Regions
11525
11526
11528
11529
11530
11531
11532

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06N07
(-97",35") 		E22-W13
(35) 		3.9 -2.3 -1.5e33
2 W48N51
(445",691") 		W31-W71
(40) 		1.1 0.5 6.6e32
3 W18N07
(295",30") 		W15-W22
(7) 		0.3 -2.5 -1.9e32
4 W58S33
(670",-552") 		W57-W62
(5) 		0.0 3.3 2.7e32

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 26-Jul-2012 23:00 UT .