25 June 2012
⇐20120624 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120626⇒

NOAA
3 Active Regions
11510
11511
11512

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09N50
(94",696") 		E31-W48
(79) 		2.7 1.3 2.0e33
2 E61N03
(-826",39") 		E72-E50
(22) 		0.8 -0.8 -8.0e32
3 W24S23
(357",-396") 		W19-W29
(10) 		0.3 7.6 9.2e32
4 W18N42
(222",607") 		W15-W21
(6) 		0.0 -2.5 -5.2e31

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-Jun-2012 23:00 UT .