12 October 2017
⇐20171011 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171013⇒

NOAA
0 Active Regions

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19N57
(169",747") 		E74-W68
(142) 		9.0 1.1 7.4e33
2 W20S67
(132",-916") 		E18-W46
(64) 		0.5 -1.0 -2.2e33
3 E31N39
(-381",540") 		E35-E27
(8) 		0.4 0.9 1.5e32
4 W06S35
(80",-636") 		W03-W09
(6) 		0.1 -0.6 -3.3e31
5 E26S27
(-377",-517") 		E29-E22
(7) 		0.1 -0.6 -2.2e31

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 12-Oct-2017 23:30 UT .