8 December 2013
⇐20131207 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131209⇒

NOAA
7 Active Regions
11909
11912
11915
11916
11917
11911
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 E56N35
(-658",559") 		E72-E43
(29) 		3.3 -3.0 -1.3e34
2 W61N07
(848",120") 		W52-W70
(18) 		0.5 0.6 3.4e32
3 W15N62
(118",861") 		25
(4.5e04) 		-0.4 6.4 2.9e33
4 W17S67
(111",-894") 		E09-W32
(41) 		0.3 0.3 1.8e32
5 E01N52
(-7",772") 		E05-W05
(10) 		0.1 -0.5 -3.5e31

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 8-Dec-2013 20:35 UT .