7 April 2015
⇐20150406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150408⇒

NOAA
6 Active Regions
12317
12318
12319
12320
12314
12316

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07S74
(-30",-890") 		E75-W80
(155) 		1.7 -0.7 -2.5e33
2 W21S03
(341",53") 		W11-W31
(20) 		1.1 -3.0 -8.0e32

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 7-Apr-2015 23:35 UT .