19 October 2014
⇐20141018 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141020⇒

NOAA
7 Active Regions
12186
12187
12192
12188
12189
12190
12191

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09N51
(93",682") 		E41-W28
(69) 		8.3 0.6 2.8e33
2 E23S11
(-375",-274") 		E34-E04
(30) 		1.8 18.3 9.8e33
3 E40S06
(-611",-173") 		E45-E34
(11) 		0.4 14.8 2.4e33

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 19-Oct-2014 23:35 UT .