25 November 2013
⇐20131124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131126⇒

NOAA
4 Active Regions
11899
11903
11904
11905

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16N40
(207",602") 		E14-W37
(51) 		2.9 2.3 3.0e33
2 W06S53
(66",-790") 		E20-W17
(37) 		1.1 -0.5 -4.7e32
3 W47N57
(382",809") 		W46-W57
(11) 		0.2 -1.0 -2.8e32
4 E40N25
(-562",397") 		E47-E35
(12) 		0.1 -2.3 -1.0e32
5 E07S06
(-115",-126") 		E09-E05
(4) 		0.1 5.5 8.4e31
6 W27S43
(322",-681") 		W24-W29
(5) 		0.1 -0.9 -3.8e31
7 W13N54
(127",775") 		W08-W19
(11) 		0.0 -1.7 -6.0e31
8 W29S28
(412",-474") 		W26-W31
(5) 		0.0 -8.0 -1.4e32

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-Nov-2013 22:05 UT .