10 April 2012
⇐20120409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120411⇒

NOAA
3 Active Regions
11450
11452
11454

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13S13
(206",-124") 		E07-W34
(41) 		8.0 -3.4 -5.5e33
2 W09N46
(105",757") 		E11-W19
(30) 		1.1 -1.0 -8.0e32
3 E04S41
(-45",-558") 		E07-W02
(9) 		0.1 -4.0 -1.3e32

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 10-Apr-2012 23:00 UT .