4 December 2010
⇐20101203 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101205⇒

NOAA
4 Active Regions
11130
11131
11132
11133

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S40
(-85",-639") 		E19-W14
(33) 		2.3 -0.1 -6.7e31
2 E02S70
(-12",-916") 		E54-W24
(78) 		0.9 0.6 1.4e33
3 W00N30
(4",486") 		E08-W07
(15) 		0.7 -0.8 -1.7e32
4 W24N71
(131",916") 		E03-W42
(45) 		0.3 -0.6 -5.4e32
5 E52N05
(-762",83") 		E57-E47
(10) 		0.1 -0.8 -7.7e31
6 E04S26
(-60",-435") 		7
(3.0e03) 		-2.5 5.9 1.7e32
7 W31N04
(496",58") 		W27-W34
(7) 		0.1 -1.0 -3.3e31
8 W25N10
(403",169") 		W23-W26
(3) 		0.0 -5.2 -6.8e31

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 4-Dec-2010 23:30 UT .