26 November 2012
⇐20121125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121127⇒

NOAA
4 Active Regions
11618
11620
11621
11622

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19N25
(-282",393") 		E31-E05
(26) 		4.6 -1.2 -1.7e33
2 W29N51
(300",740") 		E09-W51
(60) 		3.1 0.6 1.6e33
3 E03N30
(-48",465") 		E06-E01
(5) 		0.0 -1.2 -1.5e31

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-Nov-2012 22:00 UT .