6 December 2013
⇐20131205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131207⇒

NOAA
7 Active Regions
11908
11909
11911
11912
11915
11916
11914

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29N13
(455",211") 		W09-W43
(34) 		3.3 1.9 2.0e33
2 W30N49
(321",735") 		W09-W51
(42) 		2.1 0.1 1.6e32

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 6-Dec-2013 20:35 UT .