2 December 2013
⇐20131201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131203⇒

NOAA
7 Active Regions
11907
11908
11909
11910
11911
11905
11906

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W13N56
(124",805") 		E35-W69
(104) 		3.7 0.2 6.4e32
2 E29N06
(-472",85") 		E40-E17
(23) 		1.7 2.1 1.1e33
3 W18N18
(284",286") 		W13-W21
(8) 		0.2 -7.7 -3.7e32
4 E33N28
(-469",444") 		E36-E30
(6) 		0.1 -2.0 -4.6e31
5 W12N27
(187",428") 		W10-W15
(5) 		0.0 -1.1 -1.1e31

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 2-Dec-2013 20:35 UT .