28 October 2014
⇐20141027 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141029⇒

NOAA
5 Active Regions
12192
12194
12195
12196
12197

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19N57
(-175",765") 		E57-W68
(125) 		7.7 0.3 1.8e33
2 E06S54
(-60",-829") 		E70-W39
(109) 		3.5 -1.0 -3.9e33
3 W20N28
(286",381") 		W15-W26
(11) 		0.2 -1.2 -6.5e31
4 W23S02
(381",-115") 		W20-W26
(6) 		0.1 -3.8 -5.6e31
5 W29S02
(476",-109") 		W27-W33
(6) 		0.1 -1.8 -2.8e31

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 28-Oct-2014 20:35 UT .