24 October 2010
⇐20101023 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101025⇒

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 W28N13
(438",138") 		W13-W43
(30) 		3.4 -3.9 -3.8e33
2 W17N27
(253",361") 		W14-W20
(6) 		0.1 -8.6 -2.4e32

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 24-Oct-2010 23:30 UT .