16 January 2013
⇐20130115 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130117⇒

NOAA
6 Active Regions
11649
11650
11652
11654
11656
11658

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W17N64
(123",909") 		E00-W22
(22) 		0.3 0.6 5.3e32
2 W15N30
(220",552") 		W11-W20
(9) 		0.3 3.6 4.1e32

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 16-Jan-2013 22:00 UT .