12 October 2012
⇐20121011 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121013⇒

NOAA
6 Active Regions
11585
11586
11588
11589
11590
11591

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24S13
(388",-307") 		E03-W44
(47) 		4.1 0.9 1.2e33
2 W27N41
(334",557") 		W08-W47
(39) 		1.6 0.4 2.7e32
3 E33N23
(-489",291") 		E40-E22
(18) 		1.2 -10.1 -4.5e33
4 E32S37
(-407",-651") 		E37-E24
(13) 		0.2 4.1 5.4e32
5 E29N48
(-308",653") 		E32-E24
(8) 		0.1 -0.8 -7.2e31
6 E20S03
(-325",-147") 		E22-E16
(6) 		0.1 -2.2 -7.1e31
7 E24N30
(-338",393") 		E26-E21
(5) 		0.1 -1.2 -4.5e31
8 W09N22
(135",262") 		W06-W11
(5) 		0.1 -2.6 -6.1e31

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 12-Oct-2012 21:00 UT .