21 June 2013
⇐20130620 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130622⇒

NOAA
7 Active Regions
11770
11772
11773
11774
11775
11776
11777

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W05N40
(60",586") 		E53-W42
(95) 		12.5 -2.1 -1.1e34
2 E27S46
(-300",-693") 		E29-E22
(7) 		0.3 -1.4 -2.9e32

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 21-Jun-2013 17:00 UT .