18 October 2014
⇐20141017 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141019⇒

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 E14N49
(-149",665") 		E50-W16
(66) 		8.2 1.2 5.2e33
2 E36S12
(-556",-281") 		E46-E26
(20) 		1.1 17.7 8.5e33
3 E53S06
(-764",-156") 		E56-E49
(7) 		0.1 13.5 1.6e33
4 E19S02
(-319",-130") 		E22-E17
(5) 		0.1 7.2 1.3e32

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 18-Oct-2014 23:35 UT .