9 December 2013
⇐20131208 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131210⇒

NOAA
6 Active Regions
11909
11912
11916
11917
11918
11915

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E42N37
(-522",595") 		E68-E25
(43) 		6.2 -2.9 -1.5e34
2 E12N41
(-154",640") 		E17-E06
(11) 		0.2 -1.0 -9.9e31
3 W05N03
(84",57") 		W03-W06
(3) 		0.0 -4.5 -3.3e31

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 9-Dec-2013 20:35 UT .