24 November 2012
⇐20121123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121125⇒

NOAA
5 Active Regions
11616
11618
11619
11620
11621

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W16N48
(175",705") 		E19-W38
(57) 		4.4 0.7 1.9e33
2 E45N16
(-657",249") 		E55-E35
(20) 		0.8 -1.3 -6.1e32
3 E44N56
(-370",798") 		E55-E30
(25) 		0.3 0.6 3.5e32
4 W51S37
(598",-603") 		W42-W62
(20) 		0.3 -5.4 -2.0e33
5 E48S01
(-723",-39") 		E53-E44
(9) 		0.2 -0.8 -1.1e32
6 E28N22
(-430",347") 		E33-E24
(9) 		0.1 -2.9 -1.5e32
7 W05S48
(60",-744") 		E03-W09
(12) 		0.1 -3.2 -2.6e32
8 W14S43
(169",-681") 		W10-W18
(8) 		0.1 -11.7 -5.5e32
9 E24N22
(-363",334") 		E26-E22
(4) 		0.0 -3.5 -3.7e31

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 24-Nov-2012 22:00 UT .