21 November 2010
⇐20101120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20101122⇒

NOAA
2 Active Regions
11126
11127

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25N21
(385",313") 		W17-W30
(13) 		0.6 -13.9 -2.5e33
2 E10S32
(-140",-551") 		E15-E01
(14) 		0.3 -1.0 -1.3e32

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 21-Nov-2010 23:30 UT .