25 July 2012
⇐20120724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120726⇒

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 E22N08
(-346",59") 		E45-E02
(43) 		4.0 -3.0 -2.8e33
2 W38N52
(361",699") 		W10-W66
(56) 		1.9 0.7 1.2e33
3 W04N08
(65",37") 		W00-W07
(7) 		0.3 -1.7 -9.6e31
4 W15N21
(235",264") 		W13-W18
(5) 		0.1 -2.0 -2.5e31

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 25-Jul-2012 21:00 UT .