26 October 2010
⇐20101025 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101027⇒

NOAA
4 Active Regions
11113
11115
11117
11119

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S25
(-426",-480") 		E35-E23
(12) 		0.8 1.3 4.5e32
2 E18S47
(-207",-757") 		E25-E01
(24) 		0.7 0.6 3.3e32

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 26-Oct-2010 23:30 UT .