20 October 2014
⇐20141019 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141021⇒

NOAA
7 Active Regions
12186
12187
12192
12193
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 W23N52
(227",709") 		E17-W36
(53) 		5.0 0.4 1.3e33
2 E17S11
(-271",-268") 		E29-W04
(33) 		2.2 15.2 8.6e33
3 W36N12
(561",126") 		W27-W43
(16) 		1.1 3.3 1.4e33
4 W07S03
(116",-140") 		W00-W12
(12) 		0.3 5.6 3.3e32
5 E34N55
(-312",744") 		E39-E31
(8) 		0.0 -1.0 -4.2e31

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 20-Oct-2014 23:35 UT .