19 June 2015
⇐20150618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150620⇒

NOAA
4 Active Regions
12367
12369
12371
12370

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S09
(-355",-172") 		E42-E10
(32) 		1.3 6.7 2.3e33
2 E61N32
(-705",487") 		E74-E49
(25) 		0.7 1.6 1.8e33
3 E35S68
(-206",-882") 		E63-E18
(45) 		0.4 -0.8 -1.1e33
4 W01N60
(7",807") 		E06-W07
(13) 		0.1 -0.9 -1.3e32
5 E25S46
(-279",-690") 		E27-E24
(3) 		0.1 -1.6 -1.0e32
6 E19N15
(-291",229") 		E20-E16
(4) 		0.0 4.9 5.0e31

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-Jun-2015 23:35 UT .