17 October 2014
⇐20141016 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141018⇒

NOAA
7 Active Regions
12186
12187
12189
12190
12191
12185
12188

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22N49
(-240",666") 		E56-W16
(72) 		7.9 1.0 4.8e33
2 E47S14
(-682",-297") 		E53-E40
(13) 		0.4 11.5 2.9e33
3 W51S58
(394",-846") 		W39-W68
(29) 		0.3 -0.6 -9.1e32
4 E54S06
(-771",-157") 		E55-E51
(4) 		0.1 5.2 2.6e32
5 W05N45
(56",617") 		W02-W07
(5) 		0.0 -1.1 -2.2e31

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 17-Oct-2014 23:35 UT .