12 October 2015
⇐20151011 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151013⇒

NOAA
4 Active Regions
12430
12431
12432
12429

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 W11N43
(139",580") 		E28-W57
(85) 		25.5 0.9 9.5e33
2 E11S66
(-76",-915") 		E29-E01
(28) 		0.2 -0.9 -6.2e32
3 E33S13
(-516",-301") 		E40-E28
(12) 		0.1 7.1 4.0e32

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-2015 18:30 UT .